powder cores - butronik electronic...each alloy powder cores of dongbu is coated with epoxy resin...

124
www.dongbuem.com Powder Cores MPP / High Flux / High Flux Prime / Sendust / Power Flux / Ultra Flux / Special Shape Core / SMD Metal Core 东部电子材料有限公司

Upload: others

Post on 18-May-2020

32 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

www.dongbuem.com

Powder CoresMPP / High Flux / High Flux Prime / Sendust / Power Flux / Ultra Flux /

Special Shape Core / SMD Metal Core

东部电子材料有限公司

Page 2: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,
Page 3: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

Since 1996, Dongbu has operated a powder production factory and a core production factory in Ansan, Ko-rea. At the powder production factory, raw materials are weighed, melted and atomized to powders. The powders are pulverized to a desired particle distribution, heat-treated, and insulated. On the other hand, at the core production factory, the insulated powders are pressed to cores, stress-relieved, infiltrated and proceeded to the final coating and inspection. Through the factory operation we have set all the standard procedures up and it has led to the production of more consistent and more reliable products.

We produce the magnetic core products of Moly-Permalloy Powder Cores (MPP), High Flux Powder Cores (HF), High Flux Prime Powder Cores (HF Prime), Ultra Flux Powder Cores (UF), Sendust Powder Cores (SDT), Power Flux Powder Cores (PF) which are made of metal alloy powders consisting of nickel, iron, aluminum, silicon, and molybdenum. Besides, new materials are possible at a customer’s request. In addition to toroidal cores, special shape cores such as E cores, U cores, and Block cores are also available for the re-newable energy market including the photovoltaic (PV) inverter market, and for the hybrid electric vehicle (HEV) and electric vehicle (EV) market. These products show the best performance in DC-superposition and core loss characteristics at high frequency and high current condition, which makes them quite suitable for a variety of power applications from simple chokes to sophisticated devices such as DC-DC converters and DC-AC inverters.

It is our constant mission to try to meet customers’ needs in terms of quality, cost and delivery. In addition, we’ll be the best, the only and the first in global magnetic powder core business by best practices based on six sigma methodology.

Introduction of our company.

Page 4: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,
Page 5: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

General InformationApplication 6Core Identification 7

-Name Code of Materials and Color of Toroidal Cores-Apparent Inductance in 1,000 turns

Breakdown Voltage and Coating Materials 8-Tolerance of Apparent Inductance-Unit Pack Quantity

Core Dimension Table 9Winding Data 10Single Layer Winding Capacity 11Wire Table 13

Technical InformationMagnetic Design Formula 16Conversion Table 18Permeability vs. Frequency 20Normal Magnetizing Curves 22Permeability vs. AC Flux Density 24Permeability vs. DC Bias Curves 26Core Loss vs Temperature 29Factors of Permeability vs. DC Bias Fit Formula, Factors of Percentage Permeability 30Typical Core Loss of MPP 32Typical Core Loss of High Flux 34Typical Core Loss of High Flux Prime 36Typical Core Loss of Ultra Flux 38Typical Core Loss of Power Flux 40Typical Core Loss of Sendust 42Temperature Stability 44Symbol and Units 46Glossary of Terms 47

Dimension and Reference TableStandard MPC (Magnetic Powder Core) Toroidal SeriesSpecial Core DataSpecial Height UP/Down Core Series 106Special Sendust 90μ Core Series 107Dongbu Special Shape Core Data 108EE Core series 109EQ Core series 110Block Core series 111UU Core series 112Cylinder Core series 113

CPI Core DataCDR Series 116DR Series 117T Series 118

Contents

Page 6: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

General Information

Page 7: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

1General Information

Page 8: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

6 POWDER CORES

POW

DER C

ORES

ApplicationMPP Cores

High Flux (Prime) Cores

Sendust Cores

Power Flux Cores

Ultra Flux Cores

Basic Material Properties

·High Resistivity ·Inductors for Q

·Low Hysteresis and Eddy Current Loss ·Low Loss Filter Circuits

·Excellent Inductance Stability under High DC-Bias condition ·Loading Coils

·Excellent Temperature Stability ·Transformers, Chokes and Inductors

·Excellent DC-Bias Characteristics ·In-line Noise Filters

·High Bmax of 15,000 Gauss Compared to MPP or Ferrites ·Switching Regulator Inductors

·Core Loss Significantly Lower than Iron Powder Cores ·Pulse Transformers, Fly-back Transformers, PFC Chokes

·Large Energy Storage Capacity

·Excellent DC-Bias Property ·Power choke for high current (over 50A)

·Good Temperature Stability ·Power inductor for energy storage (solar cell, wind energy)

·Core Loss Lower than Fe-Si Strip Cores ·Power output stage inductor

·Excellent Core Loss & DC-Bias characteristics ·Power choke for high current (over 50A)

·High Bmax of 14,000 Gauss ·Power inductor for energy storage (solar dell, wind energy.. etc)

·Excellent temperature stabillty ·Power inductor for miliatry & industries

MPP

High Flux

Sendust

Power Flux

Ultra Flux

26~160

26~160

26~125

26~90

26~125

7000

15000

10000

16000

14000

Better

Best

Good

Best

Best

Lowest

Low

Medium

Medium

Medium

450

500

500

500

500

Best

Better

Good

Good

Good

High

Medium

Low

Low

Medium

·Core Loss Lower than Iron Powder Cores ·Switching Regulator Inductors

·Good DC-Bias Characteristics ·In-line Noise Filters

·Low Core Loss / Good DC-Bias ·Pulse Transformers, Fly-back Transformers PFC Chokes

Features

Features

Features

Features

Features

Core Material FluxDensity(G)

Perm. Vs.DC bias Core Loss Curie Temp.

(℃)Temp.

StabilityRelative

CostPermeability

(μ)

Application

Application

Application

Application

Application

Page 9: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 7

Genera

l Informa

tion

Core Identification

Apparent Inductance in 1000 turns

Name Code of Materials and Color of Toroidal Cores

Apparent inductance is value in mH/1000 turns.

(AL value is the inductance(nH) per turn squared.)

Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number.

Sometimes, in the case of customer’s special requirement, some cores are coated with parylene coating.

A part number means core identification and it includes name code of materials, core outer diameter,

apparent inductance code temperature stability code and inductance tolerance band code.

Core identification for easy distinction is following as below.

Normally, name code of materials, outer diameter of bare core, apparent inductance in 1,000 turns and inductance

temperature stability are stamped on the outside of the core.

But, for customer order, tolerance band of apparent inductance is marked in packing label.

(example)·mpC Toroidal Core Series

m 106 157 a

■Temperature stability : inductance temperature stability

■Inductance : apparent inductance (mH) factor for 1,000 turns

■Size : outer diameter of core before coating (1/100Inch)

■material : material code (M: MPP, H: High Flux, S: Sendust, W: Power Flux, U: Ultra Flux)

Brand Name Core ColorMaterial Material Code

MPP

High Flux

Sendust

Power Flux

Ultra Flux

Grey

Khaki

Black

Bluish Green

Sky Blue

M

H

S

W

U

Fe-Ni-Mo alloy powder

Fe-Ni alloy powder

Fe-Si-Al alloy powder

Fe-Si alloy powder

Ni-Fe-Si-Al powder

Page 10: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

8 POWDER CORES

POW

DER C

ORES

Breakdown Voltage and coating materials

Tolerance of Apparent Inductance

It means breakdown voltage of core and is as the below [Table 1] :

[Table 1] breakdown volTage

Coating Material Guaranteed Breakdown Voltage UL NumberParylene coating

Epoxy coating

≻0.5kV (min.)

≻0.5kV (min.)

-

UL94V-0

OD (1/100 inch) Tolerance

014 ~ 015

018 ~ 038

040 ~

-15% ~ +15%

-12% ~ +12%

-8% ~ +8%

Page 11: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 9

Genera

l Informa

tion

Core Dimension Table

Part NumberSurface Area Ae(cm2) Dimension(mm)

OD(Max) x ID(Min) x HT(Max)

After finish Before Finish40% windingfactor

40% windingfactor

WindowArea(cm2)

CrossSectionAe(cm2)

MagneticPath

Length(cm)

□014□□□ 0.018 0.013 0.817 0.48 0.65 3.56 x 1.78 x 1.52 4.19 x 1.27 x 2.16

□015□□□ 0.030 0.021 0.942 0.76 1.20 3.94 x 2.24 x 2.54 4.57 x 1.73 x 3.18

□018□□□ 0.029 0.028 1.062 0.90 1.50 4.65 x 2.36 x 2.54 5.28 x 1.85 x 3.18

□025□□□ 0.041 0.047 1.361 1.68 2.20 6.35 x 2.79 x 2.79 6.99 x 2.29 x 3.43

□026□□□ 0.041 0.047 1.363 1.70 2.30 6.60 x 2.67 x 2.54 7.24 x 2.16 x 3.18

□026□□□ 0.038 0.092 1.363 2.41 2.90 6.60 x 2.67 x 4.78 7.24 x 2.16 x 5.54

□031□□□ 0.092 0.061 1.787 2.38 3.20 7.87 x 3.96 x 3.18 8.51 x 3.43 x 3.81

□038□□□ 0.142 0.075 2.180 3.12 4.40 9.65 x 4.78 x 3.18 10.29 x 4.27 x 3.81

□038□□□ 0.142 0.094 2.180 3.46 4.70 9.65 x 4.78 x 3.96 10.29 x 4.27 x 4.60

□040□□□ 0.164 0.100 2.380 3.70 5.10 10.20 x 5.08 x 3.96 10.80 x 4.57 x 4.60

□044□□□ 0.273 0.090 2.690 4.31 6.00 11.20 x 6.35 x 3.96 11.89 x 5.89 x 4.72

□050□□□ 0.383 0.114 3.120 5.60 8.10 12.70 x 7.62 x 4.75 13.46 x 6.99 x 5.51

□065□□□ 0.713 0.192 4.110 9.20 13.60 16.50 x 10.20 x 6.35 17.40 x 9.53 x 7.11

□068□□□ 0.576 0.232 4.140 9.90 14.70 17.30 x 9.65 x 6.35 18.03 x 9.02 x 7.11

□080□□□ 1.140 0.226 5.090 12.10 18.90 20.30 x 12.70 x 6.35 21.10 x 12.07 x 7.11

□090□□□ 1.410 0.331 5.670 15.70 23.80 22.90 x 14.00 x 7.62 23.62 x 13.39 x 8.38

□092□□□ 1.490 0.388 5.880 17.90 26.30 23.60 x 14.40 x 8.89 24.30 x 13.77 x 9.70

□106□□□ 1.560 0.654 6.350 24.70 33.80 26.90 x 14.70 x 11.20 27.70 x 14.10 x 11.99

□130□□□ 2.930 0.672 8.150 31.50 48.00 33.00 x 19.90 x 10.70 33.83 x 19.30 x 11.61

□135□□□ 4.010 0.454 8.950 29.30 51.30 34.30 x 23.40 x 8.89 35.10 x 22.56 x 9.83

□141□□□ 3.640 0.678 8.980 35.50 55.10 35.80 x 22.40 x 10.50 36.63 x 21.54 x 11.28

□157□□□ 4.270 1.072 9.840 48.40 71.70 39.90 x 24.10 x 14.50 40.72 x 23.30 x 15.37

□184□□□ 4.270 1.990 10.740 69.30 94.30 46.70 x 24.10 x 18.00 47.63 x 23.32 x 18.92

□184□□□ 6.110 1.340 11.630 61.70 95.10 46.70 x 28.70 x 15.20 47.63 x 27.89 x 16.13

□200□□□ 7.500 1.251 12.730 64.20 106.30 50.80 x 31.80 x 13.50 51.69 x 30.94 x 14.35

□225□□□ 5.140 2.290 12.500 91.00 115.00 57.20 x 26.40 x 15.20 58.00 x 25.60 x 16.10

□225□□□ 9.480 1.444 14.300 76.80 130.70 57.20 x 35.60 x 14.00 58.00 x 34.70 x 14.86

□244□□□ 7.730 3.675 14.370 118.00 156.00 62.00 x 32.60 x 25.00 68.30 x 27.50 x 31.40

□306□□□ 17.990 1.770 20.000 117.50 203.10 77.80 x 49.20 x 12.70 78.90 x 48.20 x 13.84

□306□□□ 17.990 2.270 19.950 130.00 225.20 77.80 x 49.20 x 15.90 78.90 x 48.20 x 17.02

□400□□□ 24.410 2.970 24.270 191.50 335.10 101.6 x 57.15 x 13.59 102.87 x 55.75 x 14.86

□400□□□ 24.410 3.520 24.270 206.00 360.50 101.6 x 57.15 x 17.78 102.87 x 55.75 x 19.04

Page 12: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

10 POWDER CORES

POW

DER C

ORES

Winding Data

A) Window Area =

B) Winding factor is the ratio of wire area to available window area 40% for toroids. 70~80% for rectangular windows

C) 100% winding condition assumed

ID2

2

Window AreaWire Length / Turn

100% (unity) OD(max)0% HT(max)Wound Dimension(unity)

cm2 cm cmcm cmft inft inCir-Mils

CoreSize

014 0.02 3,600 0.70 0.023 0.59 0.020 0.50 0.20 0.27 0.11

015 0.03 6,080 1.05 0.034 0.89 0.029 0.58 0.23 0.48 0.19

018 0.03 5,780 1.14 0.038 0.99 0.032 0.67 0.26 0.49 0.20

025 0.04 8,100 1.35 0.044 1.16 0.038 0.88 0.35 0.54 0.21

026 0.04 8,100 1.33 0.044 1.13 0.037 0.19 0.36 0.51 0.20

026 0.04 7,570 1.75 0.058 1.62 0.053 0.92 0.36 0.74 0.29

031 0.09 18,200 1.60 0.052 1.27 0.042 1.10 0.43 0.67 0.27

038 0.14 28,200 1.79 0.059 1.37 0.045 1.34 0.53 0.74 0.29

038 0.14 28,200 1.93 0.063 1.52 0.050 1.34 0.53 0.82 0.32

040 0.16 32,400 1.99 0.065 1.54 0.050 1.41 0.55 0.85 0.33

044 0.27 53,800 2.20 0.072 1.55 0.051 1.57 0.62 0.90 0.35

050 0.38 75,600 2.49 0.082 1.75 0.057 1.82 0.72 1.15 0.45

065 0.71 140,600 3.22 0.106 2.20 0.072 2.37 0.93 1.52 0.60

068 0.58 126,000 3.67 0.120 2.33 0.076 2.49 0.98 1.63 0.64

080 1.14 225,600 3.67 0.120 2.33 0.076 2.92 1.15 1.74 0.68

090 1.41 277,700 4.29 0.141 2.70 0.089 3.26 1.28 1.98 0.78

092 1.49 293,800 4.49 0.147 3.00 0.098 3.35 1.32 2.14 0.84

106 1.56 308,000 5.23 0.171 3.76 0.123 3.73 1.47 2.40 0.94

130 2.93 577,600 5.93 0.194 3.78 0.124 4.67 1.84 2.80 1.10

135 4.01 788,500 5.87 0.192 3.23 0.106 5.01 1.97 2.90 1.14

141 3.64 719.100 6.22 0.204 3.78 0.124 5.11 2.01 2.96 1.17

157 4.27 842,700 7.38 0.242 4.81 0.158 5.64 2.22 3.52 1.39

184 4.27 842.700 8.66 0.284 6.22 0.204 6.38 2.51 3.87 1.53

184 6.11 1,206,000 8.34 0.273 5.20 0.171 6.63 2.61 3.98 1.57

200 7.50 1,484,000 8.51 0.279 4.95 0.162 7.24 2.85 4.06 1.60

225 5.14 1,014,000 9.02 0.296 6.46 0.212 7.57 2.98 3.40 1.34

225 9.48 1,871,000 9.33 0.306 5.30 0.074 8.13 3.20 4.44 1.75

225 7.73 1,525,535 13.31 0.437 8.73 0.277 6.98 2.75 3.28 1.29

306 17.99 3,550,000 10.40 0.340 5.90 0.193 11.20 4.40 5.43 2.14

306 17.99 3,550,000 11.00 0.361 6.52 0.124 11.30 4.45 5.77 2.27

400 24.41 4,818,025 13.21 0.433 7.68 0.252 15.20 5.98 5.53 2.18

400 24.41 4,818,025 14.24 0.467 8.27 0.271 15.20 5.98 6.15 2.42

Page 13: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 11

Genera

l Informa

tion

Single Layer Winding Capacity

014 015 018 025 026 026 031 038 040 044 050 065 068 080

1.27 1.73 1.85 2.29 2.16 2.16 3.45 4.27 4.57 5.89 6.99 9.53 9.02 12.07

Core Size

ID (mm)

Turns / Single layerWire No. Wire Dia (mm)

8 3.34

9 2.98

10 2.67 10

11 2.38 12

12 2.13 14

13 1.90 12 11 16

14 1.71 14 13 18

15 1.53 16 15 21

16 1.37 10 12 18 17 24

17 1.22 11 14 21 19 27

18 1.09 13 16 24 22 31

19 0.98 10 10 15 19 27 25 35

20 0.88 12 13 17 21 30 29 39

21 0.78 13 15 20 24 34 32 45

22 0.70 12 15 17 23 28 39 37 50

23 0.57 13 18 19 26 31 44 41 56

24 0.56 15 20 22 29 35 49 46 63

25 0.46 18 23 25 33 40 56 52 71

26 0.45 12 12 12 20 26 28 37 45 63 59 80

27 0.36 12 11 14 13 13 23 29 31 42 50 70 66 89

28 0.36 13 13 16 16 16 26 33 36 47 56 78 74 100

29 0.29 11 15 15 18 17 17 29 37 40 52 63 87 82

30 0.29 13 17 17 21 20 20 33 42 45 59 71 98 92

31 0.25 14 20 19 23 22 22 37 47 50 66 79

32 0.24 16 22 22 26 25 25 41 52 56 73 87

33 0.18 18 25 24 30 28 28 46 58 63 82 98

34 0.19 21 29 28 34 33 33 53 67 72 93 112

35 0.14 24 33 32 38 37 37 60 75 81

36 0.15 28 37 36 44 42 42 67 84

37 0.14 31 41 40 48 46 46 73

38 0.12 35 43 45 54 52 52

39 0.11 40 53 52 62 60 60

40 0.10 46 61 59 71 68 68

Page 14: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

12 POWDER CORES

POW

DER C

ORES

Single Layer Winding Capacity

090 092 106 130 135 141 157 184 184 200 225 225 244 306 400

13.39 13.77 14.10 19.30 22.6021.50 23.30 23.32 27.90 30.94 25.60 34.7 31.37 48.2 55.75

Core Size

ID (mm)

Turns / Single layerWire No. Wire Dia (mm)

8 3.34 15 18 17 18 18 23 25 20 29 26 41 47

9 2.98 11 11 17 20 19 21 21 26 29 23 33 38 47 54

10 2.67 12 13 13 19 23 22 24 24 29 33 26 37 33 53 63

11 2.38 14 15 15 22 26 25 27 27 33 37 30 42 38 60 72

12 2.13 16 17 17 25 30 28 31 31 37 42 34 48 43 67 81

13 1.90 18 19 20 28 34 32 35 35 42 47 39 54 48 76 91

14 1.71 21 22 22 32 38 36 39 39 47 53 43 60 54 84 103

15 1.53 24 25 25 36 43 41 44 44 54 60 49 68 61 95 117

16 1.37 27 28 29 41 48 46 50 50 60 67 55 76 68 106 132

17 1.22 31 32 33 46 54 52 56 56 68 76 62 85 77 119 147

18 1.09 35 36 37 52 61 58 63 63 76 85 70 96 87 134 167

19 0.98 39 40 42 58 69 65 71 71 86 95 78 108 97 150 187

20 0.88 44 46 47 65 77 73 80 80 96 107 88 120 108 268 210

21 0.78 50 51 53 74 87 82 90 90 108 120 99 135 123 188 239

22 0.70 56 58 60 83 98 93 101 101 121 135 111 152 137 211 268

23 0.57 63 65 66 92 109 103 112 112 135 150 124 169 169 235

24 0.56 71 73 75 103 122 116 126 126 152 168 138 189 172 263

25 0.46 80 82 84

26 0.45 89 92 94

27 0.36 99 102 105

28 0.36 111

29 0.29

30 0.29

31 0.25

32 0.24

33 0.18

34 0.19

35 0.14

36 0.15

37 0.14

38 0.12

39 0.11

40 0.10

Page 15: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 13

Genera

l Informa

tion

Wire Table

Basedonmaximumdiameterofheavyfilmmagnetwirewithinsulation

(1) Based on 750 cir mil/amperes.

(2) Based on 375 cir mil/amperes. Current capacity will vary according to the core geometry and wire size,

and can range from 375 to 1000 circular mils per ampere.

AWGWire Size

ResistanceOhms/Foot

Wire Area

Circular Mils (1)cm2(x10-3) (2)

Current Capacity Amperes

8 0.00063 18,000 91.2 22.0 44.0

9 0.00079 14,350 72.7 17.5 35.0

10 0.00100 11,500 58.2 13.8 27.6

11 0.00126 9,160 46.4 11.0 22.0

12 0.00159 7,310 37.0 8.71 17.4

13 0.00200 5,850 29.6 6.91 13.8

14 0.00252 4,680 23.7 5.48 10.9

15 0.00318 3,760 19.1 4.35 8.70

16 0.00402 3,000 15.2 3.44 6.88

17 0.00505 2,420 12.2 2.74 5.48

18 0.00639 1,940 9.83 2.17 4.34

19 0.00805 1,560 7.91 1.72 3.44

20 0.01013 1,250 6.34 1.37 2.74

21 0.0128 1,000 5.07 1.083 2.17

22 0.0162 810 4.11 0.853 1.71

23 0.0203 650 3.29 0.681 1.36

24 0.0257 525 2.66 0.539 1.08

25 0.0324 425 2.15 0.427 0.854

26 0.0410 340 1.72 0.337 0.674

27 0.0514 270 1.37 0.269 0.538

28 0.0653 220 1.11 0.212 0.424

29 0.0812 180 0.912 0.170 0.340

30 0.104 144 0.730 0.133 0.266

31 0.131 117 0.593 0.1056 0.211

32 0.162 96.0 0.487 0.0853 0.171

33 0.206 77.4 0.392 0.0672 0.134

34 0.261 60.8 0.308 0.0530 0.106

35 0.331 49.0 0.248 0.0418 0.0836

36 0.415 39.7 0.201 0.0333 0.0666

37 0.512 32.5 0.165 0.0270 0.0540

38 0.650 26.0 0.132 0.0213 0.0426

39 0.847 20.2 0.102 0.0163 0.0326

40 1.07 16.0 0.081 0.0128 0.0256

41 1.32 13.0 0.066 0.0105 0.0210

42 1.66 10.2 0.052 0.00833 0.0166

43 2.14 8.4 0.043 0.00645 0.0129

44 2.59 7.3 0.037 0.00533 0.0107

45 3.35 5.3 0.027 0.00412 0.00824

46 4.21 4.4 0.022 0.00330 0.00660

47 5.29 3.6 0.018 0.00259 0.00518

48 6.75 2.9 0.015 0.00533 0.00466

49 8.42 2.25 0.011 0.00200 0.00400

50 10.58 1.96 0.010 0.00130 0.00260

Page 16: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

Technical Information

Page 17: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

2Technical Information

Page 18: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

16 POWDER CORES

POW

DER C

ORES

Magnetic Design FormulaThe inductance of a core and the number of turns can be calculated by using the following formula.

■Inductance of Wourd Cores

■Example) M040066A

■The relations of Permeability-Flux Density(B)-Magnetizing Force(H)

Where l = Inductance (μH) μ = core permeability n = number of turns a = core cross section area (cm2) = mean magnetic path length (cm) ln = inductance for N turns (μH) al = nominal inductance(nH/N2)

Where H = magnetizing force (Oersteds) n = number of turns I = peak magnetizing current (A) = mean magnetic path length (cm) bmax = maximum flux density (Gauss) erms = voltage across coil (V) a = core cross section area (cm2) f = frequency (Hz) μ = material permeability

n = 10 turns (our standard wound turns for M040066A)a = 0.100cm2 (please see the page ‘79’)ℓ = 2.380cm (please see the page ‘79’)ln = 66 x 102 x 10-3 = 6.60(μH)

ampere’s law : The law is the magnetic equivalent of Gauss’s law. It relates the circulating magnetic field

in a closed loop to the electric current passing through the loop

Faraday’s law : The law that defines the relationship of the voltage induced across the winding of a core to

the flux density within the core

(ampere’s law)

(Faraday’s law)

Page 19: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 17

Technical Inform

ation

■Inductance calculation by Permeability vs. DC bias curves Specification

■Core Loss

Where rac = effective resistance (Ohm) a = hysteresis loss coefficient c = residual loss coefficient e = eddy current loss coefficient μ = same as before mentioned l = inductance bmax = maximum flux density f = frequency

n = 10 turns (our standard wound turns for M040066A)a = 0.100cm2 (please see the page ‘79’) = 2.380cm (please see the page ‘79’)ln = 66 x 102 x 10-3 = 6.60(μH)

Core : m040066a applied current : 3a

1) inductance Calculation at 0a

2) magnetizing force (H : oe) is calculated by ampere’ law to achieve the roll off

3) when the magnetizing force(H) is 15.8 oe, yielding 85% of initial permeability. Therefore, the Inductance at 3a is

L(3A) = 6.6 x 0.85 = 5.6(μH)

The total core losses are made up of three main

components : Hysteresis, eddy current and residual losses.

■Eddy current loss

■Residual loss

■Hysteresis loss

■Total loss factor

Page 20: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

18 POWDER CORES

POW

DER C

ORES

■Q Factor

■Physical Constant of Core

Where Q = quality factor ω = 2πf (Hz) l = inductance (H) rdc = DC winding resistance (Ohm) rac = resistance due to core losses (Ohm) rd = resistance due to winding dielectric losses (Ohm)

The Q factor is the ratio of reactance to the effective resistance and is often used as measure of performance.

So, the Q factor represents the effect of electrical resistance.

le = effective mean magnetic path length (cm)ae = effective core cross section area (cm2)ve = effective core volume (cm3)od = core outer diameter (cm)Id = core inner diamete (cm)HT = core height (cm)

Conversion Table

CGS (unit) By To obtain (unit) Factor

Magnetic Flux Density (B)

Magnetizing Force (H)

Gauss (G)

Oersted (Oe)

Tesla (T)

Amperes per Meter (A/m)

1T=104G

1A/m=4π/103Oe

10-4

79.58

Page 21: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 19

Technical Inform

ation

■Temperature Rising Calculation

■Temperature Rising Calculation

Where Ω/mhwf = Ω mh for chosen winding factor Ω/mhu = unity value, listed for each core size wf = chosen winding factor kwf = length/turn for chosen wf* ku = length/turn for unity(100%) wf*

▶ see “winding Turn Length” on core size pages

Where rdcwf = Rdc for chosen winding factor rdcu = unity value, listed for each core size(ohms) wf = chosen winding factor kwf = length/turn for chosen wf* ku = length/turn for unity(100%) wf*

▶ see “winding Turn Length” on core size pages

The increase in surface temperature of a component in free-standing air due to the total power dissipation (both

copper and core loss). The following formula has been used to approximate temperature rise:

Nominal DC Resistance, in ohm/mH, at any given winding factor can be calculated by using the following equations:

The value of Rdc for any given winding factor can be computed as follows:

Total Power Loss = Copper Loss + Core Loss

Surface Area means in case of wound core

Page 22: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

20 POWDER CORES

POW

DER C

ORES

Permeability vs. Frequency

10

100

1000

10000

100

90

80

70

60

50

40

30

20

10

0

26μ

60μ

125 μ

10

100

1000

10000

100

90

80

70

60

50

40

30

20

10

0

26μ

60μ

125 μ

■MPP

■High Flux

Per

cent

Per

mea

bility

(%)

Per

cent

Per

mea

bility

(%)

Frequency (kHz)

Frequency (kHz)

Page 23: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 21

Technical Inform

ation

■Sendust

Per

cent

Per

mea

bility

(%)

Frequency (kHz)

100

98

96

94

92

90

88

86

84

82

80

26μ

μ

60μ

75μ

125 μ

90μ

10

100

1000

10000

■Power Flux

Per

cent

Per

mea

bility

(%)

Frequency (kHz)

100

90

80

70

60

50

40

30

20

10

0

60μ

10 100 1000 10000

40

Page 24: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

22 POWDER CORES

POW

DER C

ORES

Normal Magnetizing Curves

■MPP

■High Flux

Flux

Den

sity (Gau

ss)

Flux

Den

sity (Gau

ss)

Magnetizing Force (Oersteds)

Magnetizing Force (Oersteds)

8000

7000

6000

5000

4000

3000

2000

1000

0

125μ

60μ

26μ

1 10 100 1000

1 10

100

1000

14000

13000

12000

11000

10000

9000

8000

7000

6000

5000

4000

3000

2000

1000

0

125

μ

60μ

26μ

Page 25: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 23

Technical Inform

ation

11000

10000

9000

8000

7000

6000

5000

4000

3000

2000

1000

01 10 100 1000

125μ

90μ

75μ

60μ

26μ

■Sendust

■Power Flux

Flux

Den

sity (Gau

ss)

Flux

Den

sity (Gau

ss)

Magnetizing Force (Oersteds)

Magnetizing Force (Oersteds)

16000

14000

12000

10000

8000

6000

4000

2000

010 100 1000

60μ

Page 26: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

24 POWDER CORES

POW

DER C

ORES

4

3

2

1

0

-1

10 100 1000 10000

125 μ

60μ

26μ

Permeability vs. AC Flux Density

■MPP

■High Flux

Per

cent

Cha

nge

of P

erm

eability

(%

)Per

cent

Cha

nge

of P

erm

eability

(%

)

AC Flux Density (Gauss)

AC Flux Density (Gauss)

10 100 1000 10000

30

25

20

15

10

5

0

-5

-10

125 μ

60μ

26μ

Page 27: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 25

Technical Inform

ation

■Sendust

Per

cent

Cha

nge

of P

erm

eability

(%

)

AC Flux Density (Gauss)

4

3

2

1

0

-1

125 μ

90μ

75μ

60μ

26μ

10 100 1000 10000

■Power Flux

Per

cent

Cha

nge

of P

erm

eability

(%

)

AC Flux Density (Gauss)

4

3

2

1

0

-1

60μ

10

100

1000

10000

Page 28: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

26 POWDER CORES

POW

DER C

ORES

120

100

80

60

40

20

0

26μ60μ125μ

1 10 100 1000

120

100

80

60

40

20

0

26μ60μ125μ

1 10 100 1000

■High Flux

Per

cent

Per

mea

bility

(%

)

DC Mangnetizing Force (Oe)

Permeability vs. DC Bias Curves

■MPP

Per

cent

Per

mea

bility

(%

)

DC Mangnetizing Force (Oe)

Page 29: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 27

Technical Inform

ation

120

100

80

60

40

20

0

26μ90μ 60μ125μ

1 10 100 1000

120

100

80

60

40

20

0

26μ60μ125μ

1 10 100 1000

■Ultra Flux

Per

cent

Per

mea

bility

(%

)

DC Mangnetizing Force (Oe)

■High Flux Prime

Per

cent

Per

mea

bility

(%

)

DC Mangnetizing Force (Oe)

Page 30: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

28 POWDER CORES

POW

DER C

ORES

120

100

80

60

40

20

0

26μ40μ60μ 50μ

11 0 100 1000

120

100

80

60

40

20

0

26μ40μ60μ75μ125μ 90μ

1 10 100 1000

■Power Flux

Per

cent

Per

mea

bility

(%

)

DC Mangnetizing Force (Oe)

Permeability vs. DC Bias Curves

■Sendust

Per

cent

Per

mea

bility

(%

)

DC Mangnetizing Force (Oe)

Page 31: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 29

Technical Inform

ation

150.0

140.0

130.0

120.0

110.0

100.0

90.0

80.0

PF

SDT

MPP

UF

HF

-30 -10 10 30 50 70 90 110 130

Core Loss vs Temperature

Per

cent

(%

)

Temperature (℃)

Page 32: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

30 POWDER CORES

POW

DER C

ORES

Factors of Permeability vs. DC Bias Fit Formula, Factors of Percentage Permeability

■MPP

■High Flux

Permeability

Permeability

a

a

b

b

26 1.74E-06 2.36

60 3.12E-06 2.65

125 1.78E-05 2.69

26 2.81E-06 2.13

60 2.31E-06 2.49

125 1.45E-05 2.47

% Permeability =(1 + a x Hb)

100

Page 33: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 31

Technical Inform

ation

■Ultra Flux

■Power Flux

■Sendust

Permeability

Permeability

Permeability

a

a

a

b

b

b

26 2.59E-05 1.79

60 1.88E-05 2.14

90 2.74E-05 2.23

125 1.14E-04 2.08

26 4.12E-06 1.99

50 8.55E-05 1.75

60 7.01E-05 1.85

75 1.75E-04 1.75

90 2.98E-04 1.74

26 1.67E-04 1.66

60 3.59E-04 1.78

75 5.93E-04 1.77

90 1.45E-03 1.65

125 1.99E-03 1.69

Page 34: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

32 POWDER CORES

POW

DER C

ORES

26 0.70 1.48 2.06

Typical Core Loss of MPP

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

MPP 26μ

Perm. C a b

10 100 1000 10000

200K

Hz100

KHz50

KHz25

KHz

10000

1000

100

10

1

0.1

Page 35: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 33

Technical Inform

ation

10000

1000

100

10

1

0.110 100 1000 10000

200KHz

100KHz

50KHz

25KHz

10 100 1000 10000

200K

Hz100

KHz

50KH

z25

KHz

10000

1000

100

10

1

0.1

60 0.68 1.51 2.13

125 0.44 1.58 2.09

Cor

e Lo

ss (m

W/c

m3 )

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

MPP 60μ

Flux Density (Gauss)

MPP 125μ

Perm. C a b

Page 36: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

34 POWDER CORES

POW

DER C

ORES

10 100 1000 10000

200K

Hz100

KHz50

KHz

25KHz

10000

1000

100

10

1

0.1

26 1.44 1.39 2.37

Typical Core Loss of High Flux

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

HIgh Flux 26μ

Perm. C a b

Page 37: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 35

Technical Inform

ation

10 100 1000 10000

200KHz

100KHz

50KHz

25KHz

10000

1000

100

10

1

0.1

10 100 1000 10000

200K

Hz 100KHz 50

KHz

25KHz

10000

1000

100

10

1

0.1

60 0.91 1.44 2.25

125 0.77 1.50 2.35

Cor

e Lo

ss (m

W/c

m3 )

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

HIgh Flux 60μ

Flux Density (Gauss)

HIgh Flux 125μ

Perm. C a b

Page 38: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

36 POWDER CORES

POW

DER C

ORES

10 100 1000 10000

10000

1000

100

10

1

0.1

200K

Hz 100KHz 50

KHz25K

Hz

26 1.61 1.31 2.24

Typical Core Loss of High Flux Prime

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

High Flux Prime 26μ

Perm. C a b

Page 39: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 37

Technical Inform

ation

10 100 1000 10000

10000

1000

100

10

1

0.1

200K

Hz 100KHz 50

KHz25K

Hz

10 100 1000 10000

10000

1000

100

10

1

0.1

200K

Hz 100KHz 50

KHz25K

Hz

60 0.92 1.37 2.25

125 0.80 1.48 2.27

Cor

e Lo

ss (m

W/c

m3 )

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

High Flux Prime 60μ

Flux Density (Gauss)

High Flux Prime 125μ

Perm. C a b

Page 40: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

38 POWDER CORES

POW

DER C

ORES

10 100 1000 10000

10000

1000

100

10

1

0.1

200K

Hz 100KHz 50

KHz25K

Hz

Typical Core Loss of Ultra Flux

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

Ultra Flux 26μ

PL=4.51F1.25B2.21

26 1.14 1.38 2.23

Perm. C a b

Page 41: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 39

Technical Inform

ation

10 100 1000 10000

10000

1000

100

10

1

0.1

200K

Hz 100KHz 50

KHz25K

Hz

10 100 1000 10000

10000

1000

100

10

1

0.1

200K

Hz 100KHz 50

KHz25K

Hz

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

Ultra Flux 60μ

PL=4.51F1.25B2.21

60 1.54 1.34 2.19

90 1.03 1.42 2.28

Perm. C a b

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

Ultra Flux 90μ, 125μ

Page 42: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

40 POWDER CORES

POW

DER C

ORES

10 100 1000 10000

10000

1000

100

10

1

0.1

200K

Hz 100KHz 50

KHz25K

Hz

10000

1000

100

10

1

0.110 100 1000 10000

200KHz

100KHz 50K

Hz 25KHz

Typical Core Loss of Power Flux

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

Power Flux 26μ

26 3.69 1.25 2.16

40 5.90 1.21 2.16

Perm. C a b

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

Power Flux 40μ

Page 43: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 41

Technical Inform

ation

10 100 1000 10000

10000

1000

100

10

1

0.1

200K

Hz 100KHz 50

KHz25K

Hz

10 100 1000 10000

10000

1000

100

10

1

0.1

200K

Hz 100KHz 50

KHz25K

Hz

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

Power Flux 50μ

50 4.35 1.25 2.22

60 3.96 1.25 2.19

Perm. C a b

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

Power Flux 60μ

PL=2.00F1.31B2.15

Page 44: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

42 POWDER CORES

POW

DER C

ORES

10 100 1000 10000

10000

1000

100

10

1

0.1

200K

Hz 100KHz 50

KHz25K

Hz

Typical Core Loss of Sendust

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

Sendust 26μ

26 3.58 1.19 2.13

Perm. C a b

Page 45: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 43

Technical Inform

ation

10 100 1000 10000

10000

1000

100

10

1

0.1

200K

Hz 100KHz 50

KHz25K

Hz

10 100 1000 10000

10000

1000

100

10

1

0.1

200K

Hz 100KHz 50

KHz25K

Hz

40 2.15 1.28 2.15

125 2.38 1.24 2.30

Cor

e Lo

ss (m

W/c

m3 )

Cor

e Lo

ss (m

W/c

m3 )

Flux Density (Gauss)

Sendust 40μ

Flux Density (Gauss)

Sendust 60,75,90,125μ

Perm. C a b

Page 46: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

44 POWDER CORES

POW

DER C

ORES

5.0

4.0

3.0

2.0

1.0

0.0

-0.1

-0.2

-0.3

-0.4

-0.5

60μ26μ

125 μ

-30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130

3.0

2.0

1.0

0.0

-1.0

-2.0-30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130

125 μ

60μ

26μ

Temperature Stability

■MPP

Per

cent

Per

mea

bility

(%

)

Temperature (℃)

■High Flux

Per

cent

Per

mea

bility

(%

)

Temperature (℃)

Page 47: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 45

Technical Inform

ation

60μ

5.0

4.0

3.0

2.0

1.0

0.0

-0.1

-0.2

-0.3

-0.4

-0.5-30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130

■Sendust

Per

cent

Per

mea

bility

(%

)

Temperature (℃)

125 μ

90μ

75μ

μ60μ

2.0

1.0

0.0

-1.0

-2.0

-3.0

-4.0

-5.0

-6.0

-7.0-30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130

■Power Flux

Per

cent

Per

mea

bility

(%

)

Temperature (℃)

26

Page 48: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

46 POWDER CORES

POW

DER C

ORES

Symbol and Units

Symbol UnitDiscription

ae effective cross section area of a core cm2

al apparent inductance nH/n2

b magnetic flux density T

br remanence flux density T

bmax maximum flux density T

erms sinusoidal rms voltage across winding v

H magnetizing force a/m

Hc coercive force a/m

Hmax maximum magnetizing force a/m

ℓe effective magnetic path length cm

l inductance H

n number of turns -

pl core loss of a core mw/cm3

Q quality factor -

v volume of a core cm3

rdc DC winding resistance Ω

μ absolute permeability -

μe effective permeability -

μi initial permeability -

μr relative permeability -

Page 49: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 47

Technical Inform

ation

Glossary of Terms

Number of flux lines per unit of cross-sectional area

generated by an alternating magnetic field; Gauss

The DC bias current flowing through an inductor which

causes the inductance to drop by a specified amount

from the initial zero DC bias inductance value. Common

spec i f ied induc tance drop percentages include 10%

for ferrite cores and 20% for iron powder cores in en-

ergy storage applications. Also referred to as saturation

current.

A non-magnetic discontinuity in a ferro-magnetic circuit.

For example, the space between the poles of a magnet,

although filled with brass of wood and other non-mag-

netic material, is nevertheless called an air gap.

Core losses are caused by an altering magnetic field

in the core material. The losses are a function of the

operating frequency and the total magnetic flux swing.

The total core losses are made up of three main com-

ponents: Hysteresis, eddy current and residual losses.

These losses vary considerably from one magnetic ma-

terial to another. Applications such as higher power and

higher frequency switching regulators require careful

core selection to yield the highest inductor performance

by keeping the core losses to a minimum.

The temperature at which a magnetic material loses its

magnetic properties. The core's permeability typical ly

increases dramat ical ly as the core temperature ap-

proaches the curie temperature, which causes the in-

ductance to increase. The permeability drops to near

unity at the curie temperature, which causes the induc-

tance to drop dramatically. The curie point is the tem-

perature at which the initial permeability (μi) has dropped

to 10% of its value at room temperature.

(1)The voltage at which an insulator or dielectric rup-

tures, or at which ionization and conduction take place

in a gas or vapor. (2) The reverse voltage at which ava

l a n che b reakdown occu rs i n a semiconductor. (3)

Maximum AC or DC voltage that can be applied from

the input to output (or chassis) of a converter without

causing damage.

An inductor which is intended to filter, or 'choke', out

unwanted signals.

The power loss by current flowing through the winding.

The power loss is equal to the square of the current

multiplied by the resistance of the wire (i2xR). This power

loss is transferred into heat.

AC flux density

Core Saturation

Air Gap

Core Losses

Core Losses

Breakdown Voltage

Choke

Copper Loss

Page 50: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

48 POWDER CORES

POW

DER C

ORES

Glossary of Terms

Direct current (DC) applied to the winding of a core in

addition to any time-varying current. Inductance with DC

bias is a common specification for powder cores. The

inductance will 'roll off' gradually and predictably with in-

creasing DC bias.

For a magnetic circuit constructed with an air gap, or

gaps , the permeability of a hypothetical homogeneous

material that would provide the same reluctance, or net

permeability.

Electro-Magnetic Interference - An unwanted electrical

energy in any form. EMI is often used interchangeably

with 'noise' and 'interference'.

Direct Current Resistance - The resistance of the induc-

tor winding measured with no alternating current. The

DCR is most often minimized in the design of an inductor.

The unit of measure is ohms and it is usually specified

as a maximum rating

Core losses associated with the electrical resistivity of

the magnetic material and induced voltages within the

material. Eddy currents are inversely proportional to ma-

terial resistivity and proportional to the rate of change of

flux density. Eddy current losses are present in both the

magnetic core and windings of an inductor. Eddy cur-

rents in the winding, or conductor, contribute to two main

types of losses: losses due to proximity effects and skin

effects. As for the core losses, an electric field around the

flux lines in the magnetic field is generated by alternat-

ing magnetic flux. This will result in eddy currents if the

magnetic core material has electrical conductivity. Loss-

es result from this phenomenon since the eddy currents

flow in a plane that is perpendicular to the magnetic

flux lines. Eddy current and hysteresis losses are the

two major core loss factors. Eddy current loss becomes

dominant in powder cores as the frequency increases.

Electromagnetic compatibility. The ability of an elect ronic

device to operate in i ts intended environment without its

performance being affected by EMI and without gener-

ating EMI that will affect other equipment.

(1) In the construction of an inductor, each turn of wire

or conductor acts as a capacitor plate. The combined

effects of each turn can be presented as a single ca-

pacitance known as the distributed capacitance. The

capacitance is in parallel with the inductor. This parallel

combination will resonate at some frequency, which is

called the self-resonant frequency (SRF). Lower distrib-

uted capacitance for a given inductance will result in a

higher SRF and vice versa.

(2) Capacitance that is not concentrated within a lumped

capacitor, but spread over a circuit or group of com-

ponents.

DC Bias

Effective Permeability

EMI

DCR

Eddy Current Losses

EMC

Distributed Capacitance

Page 51: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 49

Technical Inform

ation

The corresponding parameter for the induced magnetic

field in an area perpendicular to the flux path. Flux den-

sity is determined by the field strength and permeability

of the medium in which it is measured.

A winding for toroidal cores that will result in 45% of the

core's inside diameter remaining.

Hysteresis means to lag behind. This is the tendency of

a magnetic material to retain its magnetization. Hyster-

esis causes the graph of magnetic flux density versus

magnetizing force (B-H curve) to form a loop rather than

a line. The area of the loop represents the difference

between energy stored and energy released per unit of

volume of material per cycle. This difference is called the

hysteresis loss.

A closed curve obtained for a material by plotting cor-

responding values of flux density for the ordinate and

magnetizing force for the abscissa when the material is

passing through a complete cycle between definite limits

of either magnetizing force or flux density. If the material is

not driven into saturation it is said to be on a minor loop.

Energy at integral multiples of the frequency of the fun-

damental signal. Normally expressed as THD (Total Har-

monic Distortion) but can be specified for harmonics of

interest in either a percentage of or decibels below the

power level of the fundamental frequency signal.

Flux Density (B)

A filter circuit (inductor and/or capacitor) that exhibits high

Q. It is very frequency-sensitive and filters out or allows

to pass, only those frequencies within a narrow band.

High Q filters

Full Winding

Hysteresis Loss

Hysteresis Loop

Harmonics

Magnetizing Force

CoerciveForce

Remanence

Flux Density

MaximumFlux DensityMaximum

Permeability

IntialPermeability

Page 52: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

50 POWDER CORES

POW

DER C

ORES

Glossary of Terms

The total opposition offered by a component or circuit to

the flow of alternating or varying current at a particular

frequency, including both the AC and DC component..

Impedance is expressed in ohms and is similar to the

actual resistance in a direct current circuit. In computa-

tions, impedance is handled as a complex ratio of voltage

to current. The ohm is the unit of impedance. Impedance

i s t ypi cally abbreviated as "z" or "Z". The frequency-in-

variant, real component of impedance is resistance. The

f requency-var iant , imaginary component of impedance

is reactance. The reciprocal of impedance is admittance.

The average length of a single turn in the winding of the

device.

Represents the percent change in permeability from the

initial value.

The inductance rating of a core in nanoHenries per turn

squared (nH/N2) based on a peak flux density of 10

gauss (1 mT) at a frequency of 10 kHz. An AL value of 40

would produce 400μH of inductance for 100 turns and

40mH for 1000 turns.

The product of the flux density (B) and the (de) mag-

netizing force (H) in a magnetic circuit required to reach

that flux density.

The expansion and contraction of a magnetic materi-

al with changing magnetic flux density. The saturation

magnetostriction coefficient has the symbols. It is change

of length divided by original length (a dimensionless

number) and is measured at the saturation flux density.

Magnetostriction causes audible noise if the magneto-

striction is sufficiently large and the applied field is AC

and in the audible frequency range, e.g. 50 or 60 Hz.

The unit of magnetizing force in cgs units. One Oersted

equals a magneto-motive force of one Gilbert per cen-

timeter of path length. 1 Oersted = 79.58 A/m= 0.7958

A/cm

The Q factor or quality factor is a measure of the "qual-

ity" of a resonant system. Resonant systems respond to

frequencies close to their natural frequency much more

strongly than they respond to other frequencies. The Q

factor indicates the amount of resistance to resonance in

a system. Systems with a high Q factor resonate with a

greater amplitude (at the resonant frequency) than sys-

tems with a low Q factor. Damping decreases the Q

factor.

That value of permeability at a peak AC flux density of

10 gauss (1 mT).

Impedance

Mean Length Turn

Percent Permeability (%)

Inductance Factor (AL)

Magnetic Energy

Magnetostriction

Oersted

Q factor

Initial Permeability

Page 53: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 51

Technical Inform

ation

A coil inductor, usually of known area and number

of turns, that is used with a fluxmeter to measure the

change of flux linkage with the coil.

A winding for a toroidal core which will result in the full

utilization of the inside circumference of the core without

the overlapping of turns. The thickness of insulation and

tightness of winding will affect results.

Skin effect is the tendency for alternating current to flow

near the surface of the conductor in lieu of flowing in a

manner as to utilize the entire crosssectional area of tile

conductor. The phenomenon causes the resistance of

the conductor to increase. The magnetic field associated

with the current in the conductor causes eddy currents

near the center of the conductor which opposes the flow

of the main current flow near the center of the conductor.

The main current flow is forced further to the surface as

the frequency of the alternating current increasing

A term used to describe how inductance responds to

changes in cur rent . Example: A 2:1 swing corresponds

to an inductor which exhibits 2 times more inductance

at very low current than it does at its maximum rated

current. This would also correspond to the core operat-

ing at 50% of initial permeability (also 50% saturation) at

maximum current.

The rate at which the DC input to a switching regulator is

switched on and off.

The effective surface area of a typical wound core avail-

able to dissipate heat.

The amount of energy stored, in microjoules (10-6 joules),

is the product of one-half the inductance (L) in micro-

henries (10-6 Henries), times the current (I) squared in

amperes.

Search Coil

A power conversion technique that involves breaking the

input power into pulses at a high frequency by switching

it on and off and re-combining these pulses at the output

stage. Using this technique, an unregulated input voltage

can be converted to one or more regulated output volt-

ages at relatively high efficiencies.

Change in temperature of a terminal from a no-load

condition to full-current load. Also called T rise. (2) The

increase in surface temperature of a component in air

due to the power dissipation in the component. The

power dissipation for an inductor includes both copper

and core losses.

Switch Mode Power Supply

Temperature rise

Single-Layer Winding

Skin Effect

Swing

Switching Frequency

Surface Area

Stored Energy

Page 54: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

52 POWDER CORES

POW

DER C

ORES

Glossary of Terms

A factor which describes the reversible change in a

magnetic property with a change in temperature. The

magnetic property spontaneously returns when the em-

perature is cycled to its original point. It usually is ex-

pressed as the percentage change per unit of tempera-

ture.

After manufacture, many types of soft and hard magnetic

materials can be thermally cycled to make them less

sensitive to subsequent temperature extremes.

The area in and around a magnetic core which can be

used for the placement of windings.

The ratio of the total area of copper wire inside the center

hole of a toroid to the window area of the toroid.

Temperature Coefficient

Temperature Stabilization

Window Area

Winding Factor

Page 55: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 53

Technical Inform

ation

Page 56: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

Dimension and Reference Table

Page 57: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

3Dimension and

Reference Table

Page 58: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

56 POWDER CORES

POW

DER C

ORES

MPP Cross Reference

Dongbu Arnold Mag-Inc CSCO.D

Inch Inch Inchmm mm mmI.D Height

Perm

M014013A MP-014060-8 N/A CM035060 0.140 3.56 0.070 1.78 0.060 1.52 60

M014026A MP-014125-8 55140 CM035125 0.140 3.56 0.070 1.78 0.060 1.52 125

M015007A MP-015026-8 N/A N/A 0.155 3.94 0.088 2.24 0.100 2.54 26

M015017A MP-015060-8 N/A CM039060 0.155 3.94 0.088 2.24 0.100 2.54 60

M015035A MP-015125-8 55150 CM039125 0.155 3.94 0.088 2.24 0.100 2.54 125

M018009A MP-018026-8 N/A N/A 0.183 4.65 0.093 2.36 0.100 2.54 26

M018020A MP-018060-8 55181 CM046060 0.183 4.65 0.093 2.36 0.100 2.54 60

M018042A MP-018125-8 55180 CM046125 0.183 4.65 0.093 2.36 0.100 2.54 125

M025010A MP-025026-8 55022 N/A 0.250 6.35 0.110 2.79 0.110 2.79 26

M025024A MP-025060-8 55021 CM063060 0.250 6.35 0.110 2.79 0.110 2.79 60

M025050A MP-025125-8 55020 CM063125 0.250 6.35 0.110 2.79 0.110 2.79 125

M026011A MP-027026-8 55242 CM066026 0.260 6.60 0.105 2.67 0.100 2.54 26

M026026A MP-027060-8 55241 CM066060 0.260 6.60 0.105 2.67 0.100 2.54 60

M026054A MP-027125-8 55240 CM066125 0.260 6.60 0.105 2.67 0.100 2.54 125

M026021A MP-026026-8 55272 CM067026 0.260 6.60 0.105 2.67 0.188 4.78 26

M026050A MP-026060-8 55271 CM067060 0.260 6.60 0.105 2.67 0.188 4.78 60

M026103A MP-026125-8 55270 CM067125 0.260 6.60 0.105 2.67 0.188 4.78 125

M031011A MP-031026-8 55032 CM078026 0.310 7.87 0.156 3.96 0.125 3.18 26

M031025A MP-031060-8 55031 CM078060 0.310 7.87 0.156 3.96 0.125 3.18 60

M031052A MP-031125-8 55030 CM078125 0.310 7.87 0.156 3.96 0.125 3.18 125

M038011A MP-039026-8 55282 CM096026 0.380 9.65 0.188 4.78 0.125 3.18 26

M038025A MP-039060-8 55281 CM096060 0.380 9.65 0.188 4.78 0.125 3.18 60

M038053A MP-039125-8 55280 CM096125 0.380 9.65 0.188 4.78 0.125 3.18 125

M038014A MP-038026-8 55292 CM097026 0.380 9.65 0.188 4.78 0.156 3.96 26

M038032A MP-038060-8 55291 CM097060 0.380 9.65 0.188 4.78 0.156 3.96 60

M038066A MP-038125-8 55290 CM097125 0.380 9.65 0.188 4.78 0.156 3.96 125

M040014A MP-040026-2 55042 CM102026 0.400 10.16 0.200 5.08 0.156 3.96 26

M040032A MP-040060-2 55041 CM102060 0.400 10.16 0.200 5.08 0.156 3.96 60

M040066A MP-040125-2 55040 CM102125 0.400 10.16 0.200 5.08 0.156 3.96 125

M044011A MP-044026-2 55132 CM112026 0.440 11.18 0.250 6.35 0.156 3.96 26

M044026A MP-044060-2 55131 CM112060 0.440 11.18 0.250 6.35 0.156 3.96 60

M044053A MP-044125-2 55130 CM112125 0.440 11.18 0.250 6.35 0.156 3.96 125

M050012A MP-050026-2 55052 CM127026 0.500 12.70 0.300 7.62 0.187 4.75 26

M050027A MP-050060-2 55051 CM127060 0.500 12.70 0.300 7.62 0.187 4.75 60

M050056A MP-050125-2 55050 CM127125 0.500 12.70 0.300 7.62 0.187 4.75 125

M065015A MP-065026-2 55122 CM166026 0.650 16.51 0.400 10.16 0.250 6.35 26

M065035A MP-065060-2 55121 CM166060 0.650 16.51 0.400 10.16 0.250 6.35 60

M065072A MP-065125-2 55120 CM166125 0.650 16.51 0.400 10.16 0.250 6.35 125

M068019A MP-068026-2 55382 CM172026 0.680 17.27 0.380 9.65 0.250 6.35 26

M068043A MP-068060-2 55381 CM172060 0.680 17.27 0.380 9.65 0.250 6.35 60

M068089A MP-068125-2 55380 CM172125 0.680 17.27 0.380 9.65 0.250 6.35 125

M080014A MP-080026-2 55208 CM203026 0.800 20.32 0.500 12.70 0.250 6.35 26

M080032A MP-080060-2 55848 CM203060 0.800 20.32 0.500 12.70 0.250 6.35 60

M080068A MP-080125-2 55206 CM203125 0.800 20.32 0.500 12.70 0.250 6.35 125

M090019A MP-090026-2 55312 CM229026 0.900 22.86 0.550 13.97 0.300 7.62 26

M090043A MP-090060-2 55059 CM229060 0.900 22.86 0.550 13.97 0.300 7.62 60

M090090A MP-090125-2 55310 CM229125 0.900 22.86 0.550 13.97 0.300 7.62 125

M092022A MP-092026-2 55352 CM234026 0.920 23.60 0.567 14.40 0.350 8.89 26

Page 59: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 57

Dim

ension and

Reference Tab

le

Dongbu Arnold Mag-Inc CSCO.D

Inch Inch Inchmm mm mmI.D Height

Perm

M092051A MP-092060-2 55351 CM234060 0.920 23.60 0.567 14.40 0.350 8.89 60

M092105A MP-092125-2 55350 CM234125 0.920 23.60 0.567 14.40 0.350 8.89 125

M106032A MP-106026-2 55932 CM270026 1.060 26.92 0.580 14.73 0.440 11.18 26

M106075A MP-106060-2 55894 CM270060 1.060 26.92 0.580 14.73 0.440 11.18 60

M106157A MP-106125-2 55930 CM270125 1.060 26.92 0.580 14.73 0.440 11.18 125

M130028A MP-130026-2 55550 CM330026 1.300 33.02 0.785 19.94 0.420 10.67 26

M130061A MP-130060-2 55071 CM330060 1.300 33.02 0.785 19.94 0.420 10.67 60

M130127A MP-130125-2 55548 CM330125 1.300 33.02 0.785 19.94 0.420 10.67 125

M135016A MP-135026-2 55587 CM343026 1.350 34.29 0.580 14.73 0.440 11.18 26

M135038A MP-135060-2 55586 CM343060 1.350 34.29 0.580 14.73 0.440 11.18 60

M135079A MP-135125-2 55585 CM343125 1.350 34.29 0.580 14.73 0.440 11.18 125

M141024A MP-141026-2 55326 CM358026 1.410 35.81 0.880 22.35 0.412 10.46 26

M141056A MP-141060-2 55076 CM358060 1.410 35.81 0.880 22.35 0.412 10.46 60

M141127A MP-141125-2 55324 CM358125 1.410 35.81 0.880 22.35 0.412 10.46 125

M157035A MP-157026-2 55256 CM400026 1.570 39.38 0.950 24.13 0.570 14.48 26

M157081A MP-157060-2 55083 CM400060 1.570 39.38 0.950 24.13 0.570 14.48 60

M157168A MP-157125-2 55254 CM400125 1.570 39.38 0.950 24.13 0.570 14.48 125

M184059A MP-184026-2 55440 CM467026 1.840 46.72 0.950 24.13 0.710 18.03 26

M184135A MP-184060-2 55439 CM467060 1.840 46.72 0.950 24.13 0.710 18.03 60

M184281A MP-184125-2 55438 CM467125 1.840 46.72 0.950 24.13 0.710 18.03 125

M184037A MP-185026-2 55091 CM468026 1.840 46.72 1.130 28.70 0.600 15.24 26

M184086A MP-185060-2 55090 CM468060 1.840 46.72 1.130 28.70 0.600 15.24 60

M184178A MP-185125-2 55089 CM468125 1.840 46.72 1.130 28.70 0.600 15.24 125

M200032A MP-200026-2 55717 CM508026 2.000 50.80 1.250 31.75 0.530 13.46 26

M200073A MP-200060-2 55716 CM508060 2.000 50.80 1.250 31.75 0.530 13.46 60

M200152A MP-200125-2 55715 CM508125 2.000 50.80 1.250 31.75 0.530 13.46 125

M225060A MP-226026-2 55191 CM571026 2.250 57.15 1.039 26.39 0.600 15.24 26

M225138A MP-226060-2 55192 CM571060 2.250 57.15 1.039 26.39 0.600 15.24 60

M225287A MP-226125-2 55195 CM571125 2.250 57.15 1.039 26.39 0.600 15.24 125

M225033A MP-225026-2 55111 CM572026 2.250 57.15 1.400 35.56 0.550 13.97 26

M225075A MP-225060-2 55110 CM572060 2.250 57.15 1.400 35.56 0.550 13.97 60

M225156A MP-225125-2 55109 CM572125 2.250 57.15 1.400 35.56 0.550 13.97 125

M244084A N/A 55615 CM610026 2.441 62.00 1.283 32.60 0.984 25.00 26

M244193A N/A 55617 CM610060 2.441 62.00 1.283 32.60 0.984 25.00 60

M244402A N/A 55620 CM610125 2.441 62.00 1.283 32.60 0.984 25.00 125

M306030A MP-300026-2 55868 CM777026 3.063 77.80 1.938 49.23 0.500 12.70 26

M306068A MP-300060-2 55867 CM777060 3.063 77.80 1.938 49.23 0.500 12.70 60

M306142A MP-300125-2 55866 CM777125 3.063 77.80 1.938 49.23 0.500 12.70 125

M306037A MP-301026-2 55908 CM778026 3.063 77.80 1.938 49.23 0.625 15.88 26

M306085A MP-301060-2 55907 CM778060 3.063 77.80 1.938 49.23 0.625 15.88 60

M306178A MP-301125-2 55906 CM778125 3.063 77.80 1.938 49.23 0.625 15.88 125

M400021A MP-401026-2 N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 14

M400040A MP-401060-2 N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 26

M400092A MP-401125-2 N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 60

M400025A MP-400026-2 55102 CM1016026 4.000 102.10 2.236 56.80 0.660 16.78 14

M400047A MP-400060-2 55099 CM1016060 4.000 102.10 2.236 56.80 0.660 16.78 26

M400112A MP-400125-2 55098 CM1016125 4.000 102.10 2.236 56.80 0.660 16.78 60

Page 60: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

58 POWDER CORES

POW

DER C

ORES

High Flux Cross Reference

Dongbu Arnold Mag-Inc CSCO.D

Inch Inch Inchmm mm mmI.D Height

Perm

H014013A HF-014060-8 N/A CH035060 0.140 3.56 0.070 1.78 0.060 1.52 60

H014026A HF-014125-8 N/A CH035125 0.140 3.56 0.070 1.78 0.060 1.52 125

H015007A HF-015026-8 N/A N/A 0.155 3.94 0.088 2.24 0.100 2.54 26

H015017A HF-015060-8 N/A CH039060 0.155 3.94 0.088 2.24 0.100 2.54 60

H015035A HF-015125-8 N/A CH039125 0.155 3.94 0.088 2.24 0.100 2.54 125

H018009A HF-018026-8 N/A N/A 0.183 4.65 0.093 2.36 0.100 2.54 26

H018020A HF-018060-8 N/A CH046060 0.183 4.65 0.093 2.36 0.100 2.54 60

H018042A HF-018125-8 N/A CH046125 0.183 4.65 0.093 2.36 0.100 2.54 125

H025010A HF-025026-8 58022 N/A 0.250 6.35 0.110 2.79 0.110 2.79 26

H025024A HF-025060-8 58021 CH063060 0.250 6.35 0.110 2.79 0.110 2.79 60

H025050A HF-025125-8 58020 CH063125 0.250 6.35 0.110 2.79 0.110 2.79 125

H026011A HF-027026-8 58242 CH066026 0.260 6.60 0.105 2.67 0.100 2.54 26

H026026A HF-027060-8 58241 CH066060 0.260 6.60 0.105 2.67 0.100 2.54 60

H026054A HF-027125-8 58240 CH066125 0.260 6.60 0.105 2.67 0.100 2.54 125

H026021A HF-026026-8 58272 CH067026 0.260 6.60 0.105 2.67 0.188 4.78 26

H026050A HF-026060-8 58271 CH067060 0.260 6.60 0.105 2.67 0.188 4.78 60

H026103A HF-026125-8 58270 CH067125 0.260 6.60 0.105 2.67 0.188 4.78 125

H031011A HF-031026-8 58032 CH078026 0.310 7.87 0.156 3.96 0.125 3.18 26

H031025A HF-031060-8 58031 CH078060 0.310 7.87 0.156 3.96 0.125 3.18 60

H031052A HF-031125-8 58030 CH078125 0.310 7.87 0.156 3.96 0.125 3.18 125

H038011A HF-039026-8 58282 CH096026 0.380 9.65 0.188 4.78 0.125 3.18 26

H038025A HF-039060-8 58281 CH096060 0.380 9.65 0.188 4.78 0.125 3.18 60

H038053A HF-039125-8 58280 CH096125 0.380 9.65 0.188 4.78 0.125 3.18 125

H038014A HF-038026-8 58292 CH097026 0.380 9.65 0.188 4.78 0.156 3.96 26

H038032A HF-038060-8 58291 CH097060 0.380 9.65 0.188 4.78 0.156 3.96 60

H038066A HF-038125-8 58290 CH097125 0.380 9.65 0.188 4.78 0.156 3.96 125

H040014A HF-040026-2 58042 CH102026 0.400 10.16 0.200 5.08 0.156 3.96 26

H040032A HF-040060-2 58041 CH102060 0.400 10.16 0.200 5.08 0.156 3.96 60

H040066A HF-040125-2 58040 CH102125 0.400 10.16 0.200 5.08 0.156 3.96 125

H044011A HF-044026-2 58132 CH112026 0.440 11.18 0.250 6.35 0.156 3.96 26

H044026A HF-044060-2 58131 CH112060 0.440 11.18 0.250 6.35 0.156 3.96 60

H044053A HF-044125-2 58130 CH112125 0.440 11.18 0.250 6.35 0.156 3.96 125

H050012A HF-050026-2 58052 CH127026 0.500 12.70 0.300 7.62 0.187 4.75 26

H050027A HF-050060-2 58051 CH127060 0.500 12.70 0.300 7.62 0.187 4.75 60

H050056A HF-050125-2 58050 CH127125 0.500 12.70 0.300 7.62 0.187 4.75 125

H065015A HF-065026-2 58122 CH166026 0.650 16.51 0.400 10.16 0.250 6.35 26

H065035A HF-065060-2 58121 CH166060 0.650 16.51 0.400 10.16 0.250 6.35 60

H065072A HF-065125-2 58120 CH166125 0.650 16.51 0.400 10.16 0.250 6.35 125

H068019A HF-068026-2 58382 CH172026 0.680 17.27 0.380 9.65 0.250 6.35 26

H068043A HF-068060-2 58381 CH172060 0.680 17.27 0.380 9.65 0.250 6.35 60

H068089A HF-068125-2 58380 CH172125 0.680 17.27 0.380 9.65 0.250 6.35 125

H080014A HF-080026-2 58208 CH203026 0.800 20.32 0.500 12.70 0.250 6.35 26

H080032A HF-080060-2 58848 CH203060 0.800 20.32 0.500 12.70 0.250 6.35 60

H080068A HF-080125-2 58206 CH203125 0.800 20.32 0.500 12.70 0.250 6.35 125

H090019A HF-090026-2 58312 CH229026 0.900 22.86 0.550 13.97 0.300 7.62 26

H090043A HF-090060-2 58059 CH229060 0.900 22.86 0.550 13.97 0.300 7.62 60

H090090A HF-090125-2 58310 CH229125 0.900 22.86 0.550 13.97 0.300 7.62 125

H092022A HF-092026-2 58352 CH234026 0.920 23.60 0.567 14.40 0.350 8.89 26

Page 61: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 59

Dim

ension and

Reference Tab

le

Dongbu Arnold Mag-Inc CSCO.D

Inch Inch Inchmm mm mmI.D Height

Perm

H092051A HF-092060-2 58351 CH234060 0.920 23.60 0.567 14.40 0.350 8.89 60

H092105A HF-092125-2 58350 CH234125 0.920 23.60 0.567 14.40 0.350 8.89 125

H106032A HF-106026-2 58932 CH270026 1.060 26.92 0.580 14.73 0.440 11.18 26

H106075A HF-106060-2 58894 CH270060 1.060 26.92 0.580 14.73 0.440 11.18 60

H106157A HF-106125-2 58930 CH270125 1.060 26.92 0.580 14.73 0.440 11.18 125

H130028A HF-130026-2 58550 CH330026 1.300 33.02 0.785 19.94 0.420 10.67 26

H130061A HF-130060-2 58071 CH330060 1.300 33.02 0.785 19.94 0.420 10.67 60

H130127A HF-130125-2 58548 CH330125 1.300 33.02 0.785 19.94 0.420 10.67 125

H135016A HF-135026-2 58587 CH343026 1.350 34.29 0.580 14.73 0.440 11.18 26

H135038A HF-135060-2 58586 CH343060 1.350 34.29 0.580 14.73 0.440 11.18 60

H135079A HF-135125-2 58585 CH343125 1.350 34.29 0.580 14.73 0.440 11.18 125

H141024A HF-141026-2 58326 CH358026 1.410 35.81 0.880 22.35 0.412 10.46 26

H141056A HF-141060-2 58076 CH358060 1.410 35.81 0.880 22.35 0.412 10.46 60

H141127A HF-141125-2 58324 CH358125 1.410 35.81 0.880 22.35 0.412 10.46 125

H157035A HF-157026-2 58256 CH400026 1.570 39.38 0.950 24.13 0.570 14.48 26

H157081A HF-157060-2 58083 CH400060 1.570 39.38 0.950 24.13 0.570 14.48 60

H157168A HF-157125-2 58254 CH400125 1.570 39.38 0.950 24.13 0.570 14.48 125

H184059A HF-184026-2 58440 CH467026 1.840 46.72 0.950 24.13 0.710 18.03 26

H184135A HF-184060-2 58439 CH467060 1.840 46.72 0.950 24.13 0.710 18.03 60

H184281A HF-184125-2 58438 CH467125 1.840 46.72 0.950 24.13 0.710 18.03 125

H184037A HF-185026-2 58091 CH468026 1.840 46.72 1.130 28.70 0.600 15.24 26

H184086A HF-185060-2 58090 CH468060 1.840 46.72 1.130 28.70 0.600 15.24 60

H184178A HF-185125-2 58089 CH468125 1.840 46.72 1.130 28.70 0.600 15.24 125

H200032A HF-200026-2 58717 CH508026 2.000 50.80 1.250 31.75 0.530 13.46 26

H200073A HF-200060-2 58716 CH508060 2.000 50.80 1.250 31.75 0.530 13.46 60

H200152A HF-200125-2 58715 CH508125 2.000 50.80 1.250 31.75 0.530 13.46 125

H225060A HF-226026-2 58191 CH571026 2.250 57.15 1.039 26.39 0.600 15.24 26

H225138A HF-226060-2 58192 CH571060 2.250 57.15 1.039 26.39 0.600 15.24 60

H225287A HF-226125-2 58195 CH571125 2.250 57.15 1.039 26.39 0.600 15.24 125

H225033A HF-225026-2 58111 CH572026 2.250 57.15 1.400 35.56 0.550 13.97 26

H225075A HF-225060-2 58110 CH572060 2.250 57.15 1.400 35.56 0.550 13.97 60

H225156A HF-225125-2 58109 CH572125 2.250 57.15 1.400 35.56 0.550 13.97 125

H244084A N/A 58615 CH610026 2.441 62.00 1.283 32.60 0.984 25.00 26

H244193A N/A 58617 CH610060 2.441 62.00 1.283 32.60 0.984 25.00 60

H244402A N/A 58620 CH610125 2.441 62.00 1.283 32.60 0.984 25.00 125

H306030A HF-300026-2 58868 CH777026 3.063 77.80 1.938 49.23 0.500 12.70 26

H306068A HF-300060-2 58867 CH777060 3.063 77.80 1.938 49.23 0.500 12.70 60

H306142A HF-300125-2 58866 CH777125 3.063 77.80 1.938 49.23 0.500 12.70 125

H306037A HF-301026-2 58908 CH778026 3.063 77.80 1.938 49.23 0.625 15.88 26

H306085A HF-301060-2 58907 CH778060 3.063 77.80 1.938 49.23 0.625 15.88 60

H306178A HF-301125-2 58906 CH778125 3.063 77.80 1.938 49.23 0.625 15.88 125

H400021A HF-401026-2 N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 14

H400040A HF-401060-2 N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 26

H400092A HF-401125-2 N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 60

H400025A HF-400026-2 58102 CH1016026 4.000 102.10 2.236 56.80 0.660 16.78 14

H400047A HF-400060-2 58099 CH1016060 4.000 102.10 2.236 56.80 0.660 16.78 26

H400112A HF-400125-2 58098 CH1016125 4.000 102.10 2.236 56.80 0.660 16.78 60

Page 62: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

60 POWDER CORES

POW

DER C

ORES

Sendust Cross Reference

Dongbu Arnold Mag-Inc CSCO.D

Inch Inch Inchmm mm mmI.D Height

Perm

S014013A MS-014060-8 77141 CS035060 0.140 3.56 0.070 1.78 0.060 1.52 60

S014016A MS-014075-8 77445 CS035075 0.140 3.56 0.070 1.78 0.060 1.52 75

S014019A MS-014090-8 77444 CS035090 0.140 3.56 0.070 1.78 0.060 1.52 90

S014026A MS-014125-8 77140 CS035125 0.140 3.56 0.070 1.78 0.060 1.52 125

S015007A MS-015026-8 N/A N/A 0.155 3.94 0.088 2.24 0.100 2.54 26

S015017A MS-015060-8 77151 CS039060 0.155 3.94 0.088 2.24 0.100 2.54 60

S015021A MS-015075-8 77155 CS039075 0.155 3.94 0.088 2.24 0.100 2.54 75

S015025A MS-015090-8 77154 CS039090 0.155 3.94 0.088 2.24 0.100 2.54 90

S015035A MS-015125-8 77150 CS039125 0.155 3.94 0.088 2.24 0.100 2.54 125

S018009A MS-018026-8 N/A N/A 0.183 4.65 0.093 2.36 0.100 2.54 26

S018020A MS-018060-8 77181 CS046060 0.183 4.65 0.093 2.36 0.100 2.54 60

S018025A MS-018075-8 77185 CS046075 0.183 4.65 0.093 2.36 0.100 2.54 75

S018030A MS-018090-8 77184 CS046090 0.183 4.65 0.093 2.36 0.100 2.54 90

S018042A MS-018125-8 77180 CS046125 0.183 4.65 0.093 2.36 0.100 2.54 125

S025010A MS-025026-8 N/A N/A 0.250 6.35 0.110 2.79 0.110 2.79 26

S025024A MS-025060-8 77021 CS063060 0.250 6.35 0.110 2.79 0.110 2.79 60

S025030A MS-025075-8 77825 CS063075 0.250 6.35 0.110 2.79 0.110 2.79 75

S025036A MS-025090-8 77824 CS063090 0.250 6.35 0.110 2.79 0.110 2.79 90

S025050A MS-025125-8 77020 CS063125 0.250 6.35 0.110 2.79 0.110 2.79 125

S026011A MS-027026-8 N/A N/A 0.260 6.60 0.105 2.67 0.100 2.54 26

S026026A MS-027060-8 77241 CS066060 0.260 6.60 0.105 2.67 0.100 2.54 60

S026032A MS-027075-8 77245 CS066075 0.260 6.60 0.105 2.67 0.100 2.54 75

S026039A MS-027090-8 77244 CS066090 0.260 6.60 0.105 2.67 0.100 2.54 90

S026054A MS-027125-8 77240 CS066125 0.260 6.60 0.105 2.67 0.100 2.54 125

S026021A MS-026026-8 N/A N/A 0.260 6.60 0.105 2.67 0.188 4.78 26

S026050A MS-026060-8 77271 CS067060 0.260 6.60 0.105 2.67 0.188 4.78 60

S026062A MS-026075-8 77875 CS067075 0.260 6.60 0.105 2.67 0.188 4.78 75

S026074A MS-026090-8 77874 CS067090 0.260 6.60 0.105 2.67 0.188 4.78 90

S026103A MS-026125-8 77270 CS067125 0.260 6.60 0.105 2.67 0.188 4.78 125

S031011A MS-031026-8 N/A N/A 0.310 7.87 0.156 3.96 0.125 3.18 26

S031025A MS-031060-8 77031 CS078060 0.310 7.87 0.156 3.96 0.125 3.18 60

S031031A MS-031075-8 77835 CS078075 0.310 7.87 0.156 3.96 0.125 3.18 75

S031037A MS-031090-8 77834 CS078090 0.310 7.87 0.156 3.96 0.125 3.18 90

S031052A MS-031125-8 77030 CS078125 0.310 7.87 0.156 3.96 0.125 3.18 125

S038011A MS-039026-8 N/A N/A 0.380 9.65 0.188 4.78 0.125 3.18 26

S038025A MS-039060-8 77281 CS096060 0.380 9.65 0.188 4.78 0.125 3.18 60

S038032A MS-039075-8 77885 CS096075 0.380 9.65 0.188 4.78 0.125 3.18 75

S038038A MS-039090-8 77884 CS096090 0.380 9.65 0.188 4.78 0.125 3.18 90

S038053A MS-039125-8 77280 CS096125 0.380 9.65 0.188 4.78 0.125 3.18 125

S038014A MS-038026-8 N/A N/A 0.380 9.65 0.188 4.78 0.156 3.96 26

S038032A MS-038060-8 77291 CS097060 0.380 9.65 0.188 4.78 0.156 3.96 60

S038040A MS-038075-8 77295 CS097075 0.380 9.65 0.188 4.78 0.156 3.96 75

S038048A MS-038090-8 77294 CS097090 0.380 9.65 0.188 4.78 0.156 3.96 90

S038066A MS-038125-8 77290 CS097125 0.380 9.65 0.188 4.78 0.156 3.96 125

S040014A MS-040026-8 N/A N/A 0.400 10.16 0.200 5.08 0.156 3.96 26

S040032A MS-040060-8 77041 CS102060 0.400 10.16 0.200 5.08 0.156 3.96 60

S040040A MS-040075-8 77845 CS102075 0.400 10.16 0.200 5.08 0.156 3.96 75

S040048A MS-040090-8 77844 CS102090 0.400 10.16 0.200 5.08 0.156 3.96 90

Page 63: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 61

Dim

ension and

Reference Tab

le

Dongbu Arnold Mag-Inc CSCO.D

Inch Inch Inchmm mm mmI.D Height

Perm

S040066A MS-040125-8 77040 CS102125 0.400 10.16 0.200 5.08 0.156 3.96 125

S044011A MS-044026-8 N/A CS112026 0.440 11.18 0.250 6.35 0.156 3.96 26

S044026A MS-044060-8 77131 CS112060 0.440 11.18 0.250 6.35 0.156 3.96 60

S044032A MS-044075-8 77335 CS112075 0.440 11.18 0.250 6.35 0.156 3.96 75

S044038A MS-044090-8 77334 CS112090 0.440 11.18 0.250 6.35 0.156 3.96 90

S044053A MS-044125-8 77130 CS112125 0.440 11.18 0.250 6.35 0.156 3.96 125

S050012A MS-050026-2 N/A CS127026 0.500 12.70 0.300 7.62 0.187 4.75 26

S050027A MS-050060-2 77051 CS127060 0.500 12.70 0.300 7.62 0.187 4.75 60

S050034A MS-050075-2 77055 CS127075 0.500 12.70 0.300 7.62 0.187 4.75 75

S050040A MS-050090-2 77054 CS127090 0.500 12.70 0.300 7.62 0.187 4.75 90

S050056A MS-050125-2 77050 CS127125 0.500 12.70 0.300 7.62 0.187 4.75 125

S065015A MS-065026-2 N/A CS166026 0.650 16.51 0.400 10.16 0.250 6.35 26

S065035A MS-065060-2 77121 CS166060 0.650 16.51 0.400 10.16 0.250 6.35 60

S065043A MS-065075-2 77225 CS166075 0.650 16.51 0.400 10.16 0.250 6.35 75

S065052A MS-065090-2 77224 CS166090 0.650 16.51 0.400 10.16 0.250 6.35 90

S065072A MS-065125-2 77120 CS166125 0.650 16.51 0.400 10.16 0.250 6.35 125

S068019A MS-068026-2 N/A CS172026 0.680 17.27 0.380 9.65 0.250 6.35 26

S068043A MS-068060-2 77381 CS172060 0.680 17.27 0.380 9.65 0.250 6.35 60

S068053A MS-068075-2 77385 CS172075 0.680 17.27 0.380 9.65 0.250 6.35 75

S068064A MS-068090-2 77384 CS172090 0.680 17.27 0.380 9.65 0.250 6.35 90

S068089A MS-068125-2 77380 CS172125 0.680 17.27 0.380 9.65 0.250 6.35 125

S080014A MS-080026-2 N/A CS203026 0.800 20.32 0.500 12.70 0.250 6.35 26

S080032A MS-080060-2 77848 CS203060 0.800 20.32 0.500 12.70 0.250 6.35 60

S080041A MS-080075-2 77211 CS203075 0.800 20.32 0.500 12.70 0.250 6.35 75

S080049A MS-080090-2 77210 CS203090 0.800 20.32 0.500 12.70 0.250 6.35 90

S080068A MS-080125-2 77206 CS203125 0.800 20.32 0.500 12.70 0.250 6.35 125

S090019A MS-090026-2 77312 CS229026 0.900 22.86 0.550 13.97 0.300 7.62 26

S090043A MS-090060-2 77059 CS229060 0.900 22.86 0.550 13.97 0.300 7.62 60

S090054A MS-090075-2 77315 CS229075 0.900 22.86 0.550 13.97 0.300 7.62 75

S090065A MS-090090-2 77314 CS229090 0.900 22.86 0.550 13.97 0.300 7.62 90

S090090A MS-090125-2 77310 CS229125 0.900 22.86 0.550 13.97 0.300 7.62 125

S092022A MS-092026-2 77352 CS234026 0.920 23.60 0.567 14.40 0.350 8.89 26

S092051A MS-092060-2 77351 CS234060 0.920 23.60 0.567 14.40 0.350 8.89 60

S092062A MS-092075-2 77355 CS234075 0.920 23.60 0.567 14.40 0.350 8.89 75

S092076A MS-092090-2 77354 CS234090 0.920 23.60 0.567 14.40 0.350 8.89 90

S092105A MS-092125-2 77350 CS234125 0.920 23.60 0.567 14.40 0.350 8.89 125

S106032A MS-106026-2 77932 CS270026 1.060 26.92 0.580 14.73 0.440 11.18 26

S106075A MS-106060-2 77894 CS270060 1.060 26.92 0.580 14.73 0.440 11.18 60

S106094A MS-106075-2 77935 CS270075 1.060 26.92 0.580 14.73 0.440 11.18 75

S106113A MS-106090-2 77934 CS270090 1.060 26.92 0.580 14.73 0.440 11.18 90

S106157A MS-106125-2 77930 CS270125 1.060 26.92 0.580 14.73 0.440 11.18 125

S130028A MS-130026-2 77550 CS330026 1.300 33.02 0.785 19.94 0.420 10.67 26

S130061A MS-130060-2 77071 CS330060 1.300 33.02 0.785 19.94 0.420 10.67 60

S130076A MS-130075-2 77553 CS330075 1.300 33.02 0.785 19.94 0.420 10.67 75

S130091A MS-130090-2 77552 CS330090 1.300 33.02 0.785 19.94 0.420 10.67 90

S130127A MS-130125-2 77548 CS330125 1.300 33.02 0.785 19.94 0.420 10.67 125

S135016A MS-135026-2 77587 CS343026 1.350 34.29 0.580 14.73 0.440 11.18 26

S135038A MS-135060-2 77586 CS343060 1.350 34.29 0.580 14.73 0.440 11.18 60

Page 64: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

62 POWDER CORES

POW

DER C

ORES

Sendust Cross Reference

Dongbu Arnold Mag-Inc CSCO.D

Inch Inch Inchmm mm mmI.D Height

Perm

S135047A MS-135075-2 77590 CS343075 1.350 34.29 0.580 14.73 0.440 11.18 75

S135057A MS-135090-2 77589 CS343090 1.350 34.29 0.580 14.73 0.440 11.18 90

S135079A MS-135125-2 77585 CS343125 1.350 34.29 0.580 14.73 0.440 11.18 125

S141024A MS-141026-2 77326 CS358026 1.410 35.81 0.880 22.35 0.412 10.46 26

S141056A MS-141060-2 77076 CS358060 1.410 35.81 0.880 22.35 0.412 10.46 60

S141070A MS-141075-2 77329 CS358075 1.410 35.81 0.880 22.35 0.412 10.46 75

S141084A MS-141090-2 77328 CS358090 1.410 35.81 0.880 22.35 0.412 10.46 90

S141127A MS-141125-2 77324 CS358125 1.410 35.81 0.880 22.35 0.412 10.46 125

S157035A MS-157026-2 77256 CS400026 1.570 39.38 0.950 24.13 0.570 14.48 26

S157081A MS-157060-2 77083 CS400060 1.570 39.38 0.950 24.13 0.570 14.48 60

S157101A MS-157075-2 77259 CS400075 1.570 39.38 0.950 24.13 0.570 14.48 75

S157121A MS-157090-2 77258 CS400090 1.570 39.38 0.950 24.13 0.570 14.48 90

S157168A MS-157125-2 77254 CS400125 1.570 39.38 0.950 24.13 0.570 14.48 125

S184059A MS-184026-2 77440 CS467026 1.840 46.72 0.950 24.13 0.710 18.03 26

S184135A MS-184060-2 77439 CS467060 1.840 46.72 0.950 24.13 0.710 18.03 60

S184169A MS-184075-2 77443 CS467075 1.840 46.72 0.950 24.13 0.710 18.03 75

S184202A MS-184090-2 77442 CS467090 1.840 46.72 0.950 24.13 0.710 18.03 90

S184281A MS-184125-2 77438 CS467125 1.840 46.72 0.950 24.13 0.710 18.03 125

S184037A MS-185026-2 77091 CS468026 1.840 46.72 1.130 28.70 0.600 15.24 26

S184086A MS-185060-2 77090 CS468060 1.840 46.72 1.130 28.70 0.600 15.24 60

S184107A MS-185075-2 77094 CS468075 1.840 46.72 1.130 28.70 0.600 15.24 75

S184128A MS-185090-2 77093 CS468090 1.840 46.72 1.130 28.70 0.600 15.24 90

S184178A MS-185125-2 77089 CS468125 1.840 46.72 1.130 28.70 0.600 15.24 125

S200032A MS-200026-2 77717 CS508026 2.000 50.80 1.250 31.75 0.530 13.46 26

S200073A MS-200060-2 77716 CS508060 2.000 50.80 1.250 31.75 0.530 13.46 60

S200091A MS-200075-2 77720 CS508075 2.000 50.80 1.250 31.75 0.530 13.46 75

S200109A MS-200090-2 77719 CS508090 2.000 50.80 1.250 31.75 0.530 13.46 90

S200152A MS-200125-2 77715 CS508125 2.000 50.80 1.250 31.75 0.530 13.46 125

S225060A MS-226026-2 77191 CS571026 2.250 57.15 1.039 26.39 0.600 15.24 26

S225138A MS-226060-2 77192 CS571060 2.250 57.15 1.039 26.39 0.600 15.24 60

S225172A MS-226075-2 77193 CS571075 2.250 57.15 1.039 26.39 0.600 15.24 75

S225207A MS-226090-2 77194 CS571090 2.250 57.15 1.039 26.39 0.600 15.24 90

S225287A MS-226125-2 77195 CS571125 2.250 57.15 1.039 26.39 0.600 15.24 125

S225033A MS-225026-2 77111 CS572026 2.250 57.15 1.400 35.56 0.550 13.97 26

S225075A MS-225060-2 77110 CS572060 2.250 57.15 1.400 35.56 0.550 13.97 60

S225094A MS-225075-2 77214 CS572075 2.250 57.15 1.400 35.56 0.550 13.97 75

S225112A MS-225090-2 77213 CS572090 2.250 57.15 1.400 35.56 0.550 13.97 90

S225156A MS-225125-2 77109 CS572125 2.250 57.15 1.400 35.56 0.550 13.97 125

S244084A N/A 77615 CS610026 2.441 62.00 1.283 32.60 0.984 25.00 26

S244193A N/A 77617 CS610060 2.441 62.00 1.283 32.60 0.984 25.00 60

S244241A N/A 77618 CS610075 2.441 62.00 1.283 32.60 0.984 25.00 75

S244289A N/A 77619 CS610090 2.441 62.00 1.283 32.60 0.984 25.00 90

S244402A N/A N/A CS610125 2.441 62.00 1.283 32.60 0.984 25.00 125

S306030A MS-300026-2 77868 CS777026 3.063 77.80 1.938 49.23 0.500 12.70 26

S306068A MS-300060-2 77867 CS777060 3.063 77.80 1.938 49.23 0.500 12.70 60

S306085A MS-300075-2 N/A CS777075 3.063 77.80 1.938 49.23 0.500 12.70 75

S306102A MS-300090-2 N/A CS777090 3.063 77.80 1.938 49.23 0.500 12.70 90

S306142A MS-300125-2 N/A CS777125 3.063 77.80 1.938 49.23 0.500 12.70 125

Page 65: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 63

Dim

ension and

Reference Tab

le

Dongbu Arnold Mag-Inc CSCO.D

Inch Inch Inchmm mm mmI.D Height

Perm

S306037A MS-301026-2 77908 CS778026 3.063 77.80 1.938 49.23 0.625 15.88 26

S306085A MS-301060-2 77907 CS778060 3.063 77.80 1.938 49.23 0.625 15.88 60

S306107A MS-301075-2 N/A CS778075 3.063 77.80 1.938 49.23 0.625 15.88 75

S306128A MS-301090-2 N/A CS778090 3.063 77.80 1.938 49.23 0.625 15.88 90

S306178A MS-301125-2 77906 CS778125 3.063 77.80 1.938 49.23 0.625 15.88 125

S400021A MS-401014-2 N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 14

S400040A MS-401026-2 N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 26

S400054A N/A N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 35

S400092A MS-401060-2 N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 60

S400025A MS-400014-2 N/A N/A 4.000 102.10 2.236 56.80 0.660 16.78 14

S400047A MS-400026-2 77102 CS1016026 4.000 102.10 2.236 56.80 0.660 16.78 26

S400063A N/A N/A N/A 4.000 102.10 2.236 56.80 0.660 16.78 35

S400112A MS-400060-2 77099 CS1016060 4.000 102.10 2.236 56.80 0.660 16.78 60

Page 66: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

64 POWDER CORES

POW

DER C

ORES

Power Flux Cross Reference

Dongbu Arnold Mag-Inc CSCO.D

Inch Inch Inchmm mm mmI.D Height

Perm

W014011A N/A N/A N/A 0.140 3.56 0.070 1.78 0.060 1.52 50

W014013A FS-014060-8 78141 CK035060 0.140 3.56 0.070 1.78 0.060 1.52 60

W014019A FS-014090-8 78444 CK035090 0.140 3.56 0.070 1.78 0.060 1.52 90

W015014A N/A N/A N/A 0.155 3.94 0.088 2.24 0.100 2.54 50

W015017A FS-015060-8 78151 CK390060 0.155 3.94 0.088 2.24 0.100 2.54 60

W015025A FS-015090-8 78154 CK390090 0.155 3.94 0.088 2.24 0.100 2.54 90

W018017A N/A N/A N/A 0.183 4.65 0.093 2.36 0.100 2.54 50

W018020A FS-018060-8 78181 CK046060 0.183 4.65 0.093 2.36 0.100 2.54 60

W018030A FS-018090-8 78184 CK046090 0.183 4.65 0.093 2.36 0.100 2.54 90

W025020A N/A N/A N/A 0.250 6.35 0.110 2.79 0.110 2.79 50

W025024A FS-025060-8 78021 CK063060 0.250 6.35 0.110 2.79 0.110 2.79 60

W025036A FS-025090-8 78824 CK063090 0.250 6.35 0.110 2.79 0.110 2.79 90

W026022A N/A N/A N/A 0.260 6.60 0.105 2.67 0.100 2.54 50

W026026A FS-027060-8 78241 CK066060 0.260 6.60 0.105 2.67 0.100 2.54 60

W026039A FS-027090-8 78244 CK066090 0.260 6.60 0.105 2.67 0.100 2.54 90

W026041A N/A N/A N/A 0.260 6.60 0.105 2.67 0.188 4.78 50

W026050A FS-026060-8 78271 CK067060 0.260 6.60 0.105 2.67 0.188 4.78 60

W026074A FS-026090-8 78874 CK067090 0.260 6.60 0.105 2.67 0.188 4.78 90

W031021A N/A N/A N/A 0.310 7.87 0.156 3.96 0.125 3.18 50

W031025A FS-031060-8 78031 CK078060 0.310 7.87 0.156 3.96 0.125 3.18 60

W031037A FS-031090-8 78834 CK078090 0.310 7.87 0.156 3.96 0.125 3.18 90

W038021A N/A N/A N/A 0.380 9.65 0.188 4.78 0.125 3.18 50

W038025A FS-039060-8 78281 CK096060 0.380 9.65 0.188 4.78 0.125 3.18 60

W038038A FS-039090-8 78884 CK096090 0.380 9.65 0.188 4.78 0.125 3.18 90

W038026A N/A N/A N/A 0.380 9.65 0.188 4.78 0.156 3.96 50

W038032A FS-038060-8 78291 CK097060 0.380 9.65 0.188 4.78 0.156 3.96 60

W038048A FS-038090-8 78294 CK097090 0.380 9.65 0.188 4.78 0.156 3.96 90

W040026A N/A N/A N/A 0.400 10.16 0.200 5.08 0.156 3.96 50

W040032A FS-040060-8 78041 CK102060 0.400 10.16 0.200 5.08 0.156 3.96 60

W040048A FS-040090-8 78844 CK102090 0.400 10.16 0.200 5.08 0.156 3.96 90

W044021A N/A N/A N/A 0.440 11.18 0.250 6.35 0.156 3.96 50

W044026A FS-044060-8 78131 CK112060 0.440 11.18 0.250 6.35 0.156 3.96 60

W044038A FS-044090-8 78334 CK112090 0.440 11.18 0.250 6.35 0.156 3.96 90

W050022A N/A N/A N/A 0.500 12.70 0.300 7.62 0.187 4.75 50

W050027A FS-050060-2 78051 CK127060 0.500 12.70 0.300 7.62 0.187 4.75 60

W050040A FS-050090-2 78054 CK127090 0.500 12.70 0.300 7.62 0.187 4.75 90

W065029A N/A N/A N/A 0.650 16.51 0.400 10.16 0.250 6.35 50

W065035A FS-065060-2 78121 CK166060 0.650 16.51 0.400 10.16 0.250 6.35 60

W065052A FS-065090-2 78224 CK166090 0.650 16.51 0.400 10.16 0.250 6.35 90

W068035A N/A N/A N/A 0.680 17.27 0.380 9.65 0.250 6.35 50

W068043A FS-068060-2 78381 CK172060 0.680 17.27 0.380 9.65 0.250 6.35 60

W068064A FS-068090-2 78384 CK172090 0.680 17.27 0.380 9.65 0.250 6.35 90

W080026A N/A N/A N/A 0.800 20.32 0.500 12.70 0.250 6.35 50

W080032A FS-080060-2 78848 CK203060 0.800 20.32 0.500 12.70 0.250 6.35 60

W080049A FS-080090-2 78210 CK203090 0.800 20.32 0.500 12.70 0.250 6.35 90

W090035A N/A N/A N/A 0.900 22.86 0.550 13.97 0.300 7.62 50

W090043A FS-090060-2 78059 CK229060 0.900 22.86 0.550 13.97 0.300 7.62 60

W090065A FS-090090-2 78314 CK229090 0.900 22.86 0.550 13.97 0.300 7.62 90

Page 67: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 65

Dim

ension and

Reference Tab

le

Dongbu Arnold Mag-Inc CSCO.D

Inch Inch Inchmm mm mmI.D Height

Perm

W092042A N/A N/A N/A 0.920 23.60 0.567 14.40 0.350 8.89 50

W092051A FS-092060-2 78351 CK234060 0.920 23.60 0.567 14.40 0.350 8.89 60

W092076A FS-092090-2 78354 CK234090 0.920 23.60 0.567 14.40 0.350 8.89 90

W106062A N/A N/A N/A 1.060 26.92 0.580 14.73 0.440 11.18 50

W106075A FS-106060-2 78894 CK270060 1.060 26.92 0.580 14.73 0.440 11.18 60

W106113A FS-106090-2 78934 CK270090 1.060 26.92 0.580 14.73 0.440 11.18 90

W130050A N/A N/A N/A 1.300 33.02 0.785 19.94 0.420 10.67 50

W130061A FS-130060-2 78071 CK330060 1.300 33.02 0.785 19.94 0.420 10.67 60

W130091A FS-130090-2 78522 CK330090 1.300 33.02 0.785 19.94 0.420 10.67 90

W135031A N/A N/A N/A 1.350 34.29 0.580 14.73 0.440 11.18 50

W135038A FS-135060-2 78586 CK343060 1.350 34.29 0.580 14.73 0.440 11.18 60

W135057A FS-135090-2 78589 CK343090 1.350 34.29 0.580 14.73 0.440 11.18 90

W141047A N/A N/A N/A 1.410 35.81 0.880 22.35 0.412 10.46 50

W141056A FS-141060-2 78076 CK358060 1.410 35.81 0.880 22.35 0.412 10.46 60

W141084A FS-141090-2 78328 CK358090 1.410 35.81 0.880 22.35 0.412 10.46 90

W157067A N/A N/A N/A 1.570 39.38 0.950 24.13 0.570 14.48 50

W157081A FS-157060-2 78083 CK400060 1.570 39.38 0.950 24.13 0.570 14.48 60

W157121A FS-157090-2 78258 CK400090 1.570 39.38 0.950 24.13 0.570 14.48 90

W184112A N/A N/A N/A 1.840 46.72 0.950 24.13 0.710 18.03 50

W184135A FS-184060-2 78439 CK467060 1.840 46.72 0.950 24.13 0.710 18.03 60

W184202A FS-184090-2 78442 CK467090 1.840 46.72 0.950 24.13 0.710 18.03 90

W184070A N/A N/A N/A 1.840 46.72 1.130 28.70 0.600 15.24 50

W184086A FS-185060-2 78090 CK468060 1.840 46.72 1.130 28.70 0.600 15.24 60

W184128A FS-185090-2 79093 CK468090 1.840 46.72 1.130 28.70 0.600 15.24 90

W200060A N/A N/A N/A 2.000 50.80 1.250 31.75 0.530 13.46 50

W200073A FS-200060-2 78716 CK508060 2.000 50.80 1.250 31.75 0.530 13.46 60

W200109A FS-200090-2 78719 CK508090 2.000 50.80 1.250 31.75 0.530 13.46 90

W225115A N/A N/A N/A 2.250 57.15 1.039 26.39 0.600 15.24 50

W225138A FS-226060-2 78192 CK571060 2.250 57.15 1.039 26.39 0.600 15.24 60

W225207A FS-226090-2 78194 CK571090 2.250 57.15 1.039 26.39 0.600 15.24 90

W225062A N/A N/A N/A 2.250 57.15 1.400 35.56 0.550 13.97 50

W225075A FS-225060-2 78110 CK572060 2.250 57.15 1.400 35.56 0.550 13.97 60

W225112A FS-225090-2 78213 CK572090 2.250 57.15 1.400 35.56 0.550 13.97 90

W244045A N/A N/A N/A 2.441 62.00 1.283 32.60 0.984 25.00 14

W244084A N/A N/A CK610026 2.441 62.00 1.283 32.60 0.984 25.00 26

W244193A N/A N/A CK610060 2.441 62.00 1.283 32.60 0.984 25.00 60

W244241A N/A N/A CK610075 2.441 62.00 1.283 32.60 0.984 25.00 75

W244289A N/A N/A CK610090 2.441 62.00 1.283 32.60 0.984 25.00 90

W306056A N/A N/A N/A 3.063 77.80 1.938 49.23 0.500 12.70 50

W306068A FS-300060-2 78867 CK777060 3.063 77.80 1.938 49.23 0.500 12.70 60

W306102A FS-300090-2 N/A CK777090 3.063 77.80 1.938 49.23 0.500 12.70 90

W306071A N/A N/A N/A 3.063 77.80 1.938 49.23 0.625 15.88 50

W306085A FS-301060-2 78907 CK778060 3.063 77.80 1.938 49.23 0.625 15.88 60

W306128A FS-301090-2 N/A CK778090 3.063 77.80 1.938 49.23 0.625 15.88 90

W400077A N/A N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 50

W400092A FS-401060-2 N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 60

W400090A N/A N/A N/A 4.000 102.10 2.236 56.80 0.660 16.78 50

W400112A FS-400060-2 N/A CK1016060 4.000 102.10 2.236 56.80 0.660 16.78 60

Page 68: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

66 POWDER CORES

POW

DER C

ORES

Ultra Flux Cross Reference

Dongbu Arnold Mag-Inc CSCO.D

Inch Inch Inchmm mm mmI.D Height

Perm

U014013A OP-014060-8 N/A N/A 0.140 3.56 0.070 1.78 0.060 1.52 60

U014026A OP-014125-8 N/A N/A 0.140 3.56 0.070 1.78 0.060 1.52 125

U015007A OP-015026-8 N/A N/A 0.155 3.94 0.088 2.24 0.100 2.54 26

U015017A OP-015060-8 N/A N/A 0.155 3.94 0.088 2.24 0.100 2.54 60

U015035A OP-015125-8 N/A N/A 0.155 3.94 0.088 2.24 0.100 2.54 125

U018009A OP-018026-8 N/A N/A 0.183 4.65 0.093 2.36 0.100 2.54 26

U018020A OP-018060-8 N/A N/A 0.183 4.65 0.093 2.36 0.100 2.54 60

U018042A OP-018125-8 N/A N/A 0.183 4.65 0.093 2.36 0.100 2.54 125

U025010A OP-025026-8 N/A N/A 0.250 6.35 0.110 2.79 0.110 2.79 26

U025024A OP-025060-8 N/A N/A 0.250 6.35 0.110 2.79 0.110 2.79 60

U025050A OP-025125-8 N/A N/A 0.250 6.35 0.110 2.79 0.110 2.79 125

U026011A OP-027026-8 N/A N/A 0.260 6.60 0.105 2.67 0.100 2.54 26

U026026A OP-027060-8 N/A N/A 0.260 6.60 0.105 2.67 0.100 2.54 60

U026054A OP-027125-8 N/A N/A 0.260 6.60 0.105 2.67 0.100 2.54 125

U026021A OP-026026-8 N/A N/A 0.260 6.60 0.105 2.67 0.188 4.78 26

U026050A OP-026060-8 N/A N/A 0.260 6.60 0.105 2.67 0.188 4.78 60

U026103A OP-026125-8 N/A N/A 0.260 6.60 0.105 2.67 0.188 4.78 125

U031011A OP-031026-8 N/A N/A 0.310 7.87 0.156 3.96 0.125 3.18 26

U031025A OP-031060-8 N/A N/A 0.310 7.87 0.156 3.96 0.125 3.18 60

U031052A OP-031125-8 N/A N/A 0.310 7.87 0.156 3.96 0.125 3.18 125

U038011A OP-039026-8 N/A HS096026 0.380 9.65 0.188 4.78 0.125 3.18 26

U038025A OP-039060-8 N/A HS096060 0.380 9.65 0.188 4.78 0.125 3.18 60

U038053A OP-039125-8 N/A N/A 0.380 9.65 0.188 4.78 0.125 3.18 125

U038014A OP-038026-8 N/A HS097026 0.380 9.65 0.188 4.78 0.156 3.96 26

U038032A OP-038060-8 N/A HS097060 0.380 9.65 0.188 4.78 0.156 3.96 60

U038066A OP-038125-8 N/A N/A 0.380 9.65 0.188 4.78 0.156 3.96 125

U040014A OP-040026-2 N/A HS102026 0.400 10.16 0.200 5.08 0.156 3.96 26

U040032A OP-040060-2 N/A HS102060 0.400 10.16 0.200 5.08 0.156 3.96 60

U040066A OP-040125-2 N/A N/A 0.400 10.16 0.200 5.08 0.156 3.96 125

U044011A OP-044026-2 N/A HS112026 0.440 11.18 0.250 6.35 0.156 3.96 26

U044026A OP-044060-2 N/A HS112060 0.440 11.18 0.250 6.35 0.156 3.96 60

U044053A OP-044125-2 N/A N/A 0.440 11.18 0.250 6.35 0.156 3.96 125

U050012A OP-050026-2 N/A HS127026 0.500 12.70 0.300 7.62 0.187 4.75 26

U050027A OP-050060-2 N/A HS127060 0.500 12.70 0.300 7.62 0.187 4.75 60

U050056A OP-050125-2 N/A N/A 0.500 12.70 0.300 7.62 0.187 4.75 125

U065015A OP-065026-2 N/A HS166026 0.650 16.51 0.400 10.16 0.250 6.35 26

U065035A OP-065060-2 N/A HS166060 0.650 16.51 0.400 10.16 0.250 6.35 60

U065072A OP-065125-2 N/A N/A 0.650 16.51 0.400 10.16 0.250 6.35 125

U068019A OP-068026-2 N/A HS172026 0.680 17.27 0.380 9.65 0.250 6.35 26

U068043A OP-068060-2 N/A HS172060 0.680 17.27 0.380 9.65 0.250 6.35 60

U068089A OP-068125-2 N/A N/A 0.680 17.27 0.380 9.65 0.250 6.35 125

U080014A OP-080026-2 N/A HS203026 0.800 20.32 0.500 12.70 0.250 6.35 26

U080032A OP-080060-2 0088848A7 HS203060 0.800 20.32 0.500 12.70 0.250 6.35 60

U080068A OP-080125-2 N/A N/A 0.800 20.32 0.500 12.70 0.250 6.35 125

U090019A OP-090026-2 N/A HS229026 0.900 22.86 0.550 13.97 0.300 7.62 26

U090043A OP-090060-2 0088059A7 HS229060 0.900 22.86 0.550 13.97 0.300 7.62 60

U090090A OP-090125-2 N/A N/A 0.900 22.86 0.550 13.97 0.300 7.62 125

U092022A OP-092026-2 N/A HS234026 0.920 23.60 0.567 14.40 0.350 8.89 26

Page 69: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 67

Dim

ension and

Reference Tab

le

Dongbu Arnold Mag-Inc CSCO.D

Inch Inch Inchmm mm mmI.D Height

Perm

U092051A OP-092060-2 0088351A7 HS234060 0.920 23.60 0.567 14.40 0.350 8.89 60

U092105A OP-092125-2 N/A N/A 0.920 23.60 0.567 14.40 0.350 8.89 125

U106032A OP-106026-2 N/A HS270026 1.060 26.92 0.580 14.73 0.440 11.18 26

U106075A OP-106060-2 0088894A7 HS270060 1.060 26.92 0.580 14.73 0.440 11.18 60

U106157A OP-106125-2 N/A N/A 1.060 26.92 0.580 14.73 0.440 11.18 125

U130028A OP-130026-2 N/A HS330026 1.300 33.02 0.785 19.94 0.420 10.67 26

U130061A OP-130060-2 0088071A7 HS330060 1.300 33.02 0.785 19.94 0.420 10.67 60

U130127A OP-130125-2 N/A N/A 1.300 33.02 0.785 19.94 0.420 10.67 125

U135016A OP-135026-2 N/A HS343026 1.350 34.29 0.580 14.73 0.440 11.18 26

U135038A OP-135060-2 N/A HS343060 1.350 34.29 0.580 14.73 0.440 11.18 60

U135079A OP-135125-2 N/A N/A 1.350 34.29 0.580 14.73 0.440 11.18 125

U141024A OP-141026-2 N/A HS358026 1.410 35.81 0.880 22.35 0.412 10.46 26

U141056A OP-141060-2 N/A HS358060 1.410 35.81 0.880 22.35 0.412 10.46 60

U141127A OP-141125-2 N/A N/A 1.410 35.81 0.880 22.35 0.412 10.46 125

U157035A OP-157026-2 N/A HS400026 1.570 39.38 0.950 24.13 0.570 14.48 26

U157081A OP-157060-2 N/A HS400060 1.570 39.38 0.950 24.13 0.570 14.48 60

U157168A OP-157125-2 N/A N/A 1.570 39.38 0.950 24.13 0.570 14.48 125

U184059A OP-184026-2 N/A HS467026 1.840 46.72 0.950 24.13 0.710 18.03 26

U184135A OP-184060-2 N/A HS467060 1.840 46.72 0.950 24.13 0.710 18.03 60

U184281A OP-184125-2 N/A N/A 1.840 46.72 0.950 24.13 0.710 18.03 125

U184037A OP-185026-2 N/A HS468026 1.840 46.72 1.130 28.70 0.600 15.24 26

U184086A OP-185060-2 N/A HS468060 1.840 46.72 1.130 28.70 0.600 15.24 60

U184178A OP-185125-2 N/A N/A 1.840 46.72 1.130 28.70 0.600 15.24 125

U200032A OP-200026-2 N/A HS508026 2.000 50.80 1.250 31.75 0.530 13.46 26

U200073A OP-200060-2 N/A HS508060 2.000 50.80 1.250 31.75 0.530 13.46 60

U200152A OP-200125-2 N/A N/A 2.000 50.80 1.250 31.75 0.530 13.46 125

U225060A OP-226026-2 N/A HS571026 2.250 57.15 1.039 26.39 0.600 15.24 26

U225138A OP-226060-2 N/A HS571060 2.250 57.15 1.039 26.39 0.600 15.24 60

U225287A OP-226125-2 N/A N/A 2.250 57.15 1.039 26.39 0.600 15.24 125

U225033A OP-225026-2 N/A HS572026 2.250 57.15 1.400 35.56 0.550 13.97 26

U225075A OP-225060-2 N/A HS572060 2.250 57.15 1.400 35.56 0.550 13.97 60

U225156A OP-225125-2 N/A N/A 2.250 57.15 1.400 35.56 0.550 13.97 125

U244084A N/A N/A HS610026 2.441 62.00 1.283 32.60 0.984 25.00 26

U244193A N/A N/A HS610060 2.441 62.00 1.283 32.60 0.984 25.00 60

U244402A N/A N/A N/A 2.441 62.00 1.283 32.60 0.984 25.00 125

U306030A OP-300026-2 N/A HS777026 3.063 77.80 1.938 49.23 0.500 12.70 26

U306068A OP-300060-2 N/A HS777060 3.063 77.80 1.938 49.23 0.500 12.70 60

U306142A OP-300125-2 N/A N/A 3.063 77.80 1.938 49.23 0.500 12.70 125

U306037A OP-301026-2 N/A HS778026 3.063 77.80 1.938 49.23 0.625 15.88 26

U306085A OP-301060-2 N/A HS778060 3.063 77.80 1.938 49.23 0.625 15.88 60

U306178A OP-301125-2 N/A N/A 3.063 77.80 1.938 49.23 0.625 15.88 125

U400021A OP-401026-2 N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 14

U400040A OP-401060-2 N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 26

U400092A OP-401125-2 N/A N/A 4.000 102.10 2.236 56.80 0.535 13.59 60

U400025A OP-400026-2 N/A HS1016026 4.000 102.10 2.236 56.80 0.660 16.78 14

U400047A OP-400060-2 N/A HS1016060 4.000 102.10 2.236 56.80 0.660 16.78 26

U400112A OP-400125-2 N/A N/A 4.000 102.10 2.236 56.80 0.660 16.78 60

Page 70: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

Standard MPC Toroidal Series

Page 71: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

4Standard

MPC Toroidal Series

Page 72: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

70 POWDER CORES

POW

DER C

ORES

0

40

35

30

25

20

15

10

5

10 20 30 40 50 60 70 80

0.140 0.070 0.060 (inch) 3.56 1.78 1.52 (mm)

M014026A

0.140"

0.070"

0.070"

O.D.(max.) 4.19 mm 0.165 in

I.D.(min.) 1.27 mm 0.050 in

HT.(max.) 2.16 mm 0.085 in

Window Area 0.018 cm2 3552 c.mils

Cross Section Area 0.013 cm2 0.002 in2

Path Length 0.817 cm 0.322 in

Volume 0.011 cm3 0.001 in3

Core Dimensions (after Finish)

Physical Constant

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWGTurns Rdc(Ω)

OD(mm) HT(mm)

Part NumberWound Core Dimension

Winding Information

30 13 0.03191 4.78 2.75

31 14 0.04328 4.72 2.69

32 16 0.06232 4.67 2.64

33 18 0.08849 4.62 2.59

34 21 0.13015 4.57 2.54

35 24 0.18766 4.53 2.50

36 28 0.27570 4.49 2.46

37 31 0.38604 4.47 2.44

AWGTurns Rdc(Ω)

OD(mm) HT(mm)

Part NumberWound Core Dimension

Winding Information

38 35 0.54734 4.44 2.41

39 40 0.79061 4.41 2.38

40 46 1.14566 4.38 2.35

41 52 1.63392 4.36 2.33

42 59 2.33657 4.34 2.31

43 66 3.29710 4.33 2.30

44 72 4.53514 4.32 2.29

45 84 6.68976 4.30 2.27

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 - - - - - -

50 11 - - - - W014011A

60 13 M014013A H014013A S014013A W014013A U014013A

75 16 - - S014016A - -

90 19 - H014019A S014019A W014019A U014019A

125 26 M014026A H014026A S014026A - U014026A

147 31 M014031A H014031A - - -

160 33 M014033A H014033A - - -

H014026AU014026AM014026AS014026A

H014013AU014013AW014013AM014013AS014013A

Page 73: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 71

Stand

ard

MPC

Toroida

l Series

0

45

40

35

30

25

20

15

10

5

10 20 30 40 50 60 9070 10080

0.155 0.088 0.100 (inch) 3.94 2.24 2.54 (mm)

M015035A

0.155"

0.088"

0.100"

O.D.(max.) 4.57 mm 0.180 in

I.D.(min.) 1.73 mm 0.068 in

HT.(max.) 3.18 mm 0.125 in

Window Area 0.030 cm2 5921 c.mils

Cross Section Area 0.021 cm2 0.003 in2

Path Length 0.942 cm 0.371 in

Volume 0.019 cm3 0.001 in3

Core Dimensions (after Finish)

Physical Constant

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

28 13 0.02547 5.30 3.91

29 15 0.03698 5.23 3.84

30 17 0.05302 5.16 3.77

31 20 0.07857 5.10 3.71

32 22 0.10889 5.05 3.66

33 25 0.15617 5.00 3.61

34 29 0.22838 4.95 3.56

35 33 0.32789 4.91 3.52

36 37 0.46294 4.87 3.48

37 41 0.64878 4.85 3.46

38 43 0.85450 4.82 3.43

39 53 1.33115 4.79 3.40

40 61 1.93053 4.76 3.37

41 68 2.71510 4.74 3.35

42 78 3.92527 4.72 3.33

43 87 5.52276 4.71 3.32

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 7 M015007A H015007A - - -

50 14 - - - - W015014A

60 17 M015017A H015017A S015017A W015017A U015017A

75 21 - - S015021A - -

90 25 - H015025A S015025A W015025A U015025A

125 35 M015035A H015035A S015035A - U015035A

147 41 M015041A H015041A - - -

160 45 M015045A H015045A - - -

H015035AU015035AM015035AS015035A

H015017AU015017AW015017AM015017AS015017A

Page 74: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

72 POWDER CORES

POW

DER C

ORES

0

45

40

35

30

25

20

15

10

5

10 30 50 60 90 110 13010080704020 120 150140

0.183 0.093 0.100 (inch) 4.65 2.36 2.54 (mm)

M018042A

0.183"

0.093"

0.100"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

27 14 0.02735 7.81 4.25

28 16 0.03940 7.72 4.16

29 18 0.05577 7.65 4.09

30 21 0.08230 7.58 4.02

31 23 0.11353 7.52 3.96

32 26 0.16170 7.47 3.91

33 30 0.23548 7.42 3.86

34 34 0.33644 7.37 3.81

35 38 0.47442 7.33 3.77

36 44 0.69175 7.29 3.73

37 48 0.95439 7.27 3.71

38 54 1.34836 7.24 3.68

39 62 1.95665 7.21 3.65

40 71 2.82341 7.18 3.62

41 80 4.01363 7.16 3.60

42 91 5.75422 7.14 3.58

O.D.(max.) 5.28 mm 0.208 in

I.D.(min.) 1.85 mm 0.073 in

HT.(max.) 3.18 mm 0.125 in

Window Area 0.029 cm2 5723 c.mils

Cross Section Area 0.028 cm2 0.004 in2

Path Length 1.062 cm 0.418 in

Volume 0.030 cm3 0.002 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 9 M018009A H018009A S018009A W018009A U018009A

50 17 - - - W018017A -

60 20 M018020A H018020A S018020A W018020A U018020A

75 25 - - S018025A - -

90 30 - H018030A S018030A W018030A U018030A

125 42 M018042A H018042A S018042A - U018042A

147 49 M018049A H018049A - - -

160 53 M018053A M018053A - - -

H018042AU018042AM018042AS018042A

H018020AU018020AW018020AM018020AS018020A

Page 75: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 73

Stand

ard

MPC

Toroida

l Series

0

55

50

45

40

35

30

25

20

15

10

5

20 40 60 80 100 120 180140 200160

0.250 0.110 0.110 (inch) 6.35 2.79 2.79 (mm)

M025050A

0.250"

0.110"

0.110"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

27 14 0.02735 7.81 4.25

28 16 0.03940 7.72 4.16

29 18 0.05577 7.65 4.09

30 21 0.08230 7.58 4.02

31 23 0.11353 7.52 3.96

32 26 0.16170 7.47 3.91

33 30 0.23548 7.42 3.86

34 34 0.33644 7.37 3.81

35 38 0.47442 7.33 3.77

36 44 0.69175 7.29 3.73

37 48 0.95439 7.27 3.71

38 54 1.34836 7.24 3.68

39 62 1.95665 7.21 3.65

40 71 2.82341 7.18 3.62

41 80 4.01363 7.16 3.60

42 91 5.75422 7.14 3.58

O.D.(max.) 6.99 mm 0.275 in

I.D.(min.) 2.29 mm 0.090 in

HT.(max.) 3.43 mm 0.135 in

Window Area 0.041 cm2 8091 c.mils

Cross Section Area 0.047 cm2 0.007 in2

Path Length 1.361 cm 0.536 in

Volume 0.064 cm3 0.004 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 10 M025010A H025010A S025010A W025010A U025010A

50 20 - - - W025020A -

60 24 M025024A H025024A S025024A W025024A U025024A

75 30 - - S025030A - -

90 36 - H025036A S025036A W025036A U025036A

125 50 M025050A H025050A S025050A - U025050A

147 59 M025059A H025059A - - -

160 64 M025064A H025064A - - -

H025050AU025050AM025050AS025050A

H025024AU025024AW025024AM025024AS025024A

Page 76: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

74 POWDER CORES

POW

DER C

ORES

0

60

55

50

45

40

35

30

25

20

15

10

5

40 6020 80 100 120 140 180160 220200

0.260 0.105 0.100 (inch) 6.60 2.67 2.54 (mm)

M026054A

0.260"

0.105"

0.100"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

26 12 0.01840 8.14 4.08

27 13 0.02513 8.06 4.00

28 16 0.03899 7.97 3.91

29 17 0.05212 7.90 3.84

30 20 0.07756 7.83 3.77

31 22 0.10747 7.77 3.71

32 25 0.15387 7.72 3.66

33 28 0.21750 7.67 3.61

34 33 0.32316 7.62 3.56

35 37 0.45714 7.58 3.52

36 42 0.65345 7.54 3.48

37 46 0.90513 7.52 3.46

38 52 1.28494 7.49 3.43

39 60 1.87387 7.46 3.40

40 68 2.67604 7.43 3.37

- - - - -

O.D.(max.) 7.24 mm 0.285 in

I.D.(min.) 2.16 mm 0.085 in

HT.(max.) 3.18 mm 0.125 in

Window Area 0.038 cm2 7499 c.mils

Cross Section Area 0.048 cm2 0.0074 in2

Path Length 1.363 cm 0.537 in

Volume 0.064 cm3 0.004 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 11 M026011A H026011A S026011A W026011A U026011A

50 22 - - - W026022A -

60 26 M026026A H026026A S026026A W026026A U026026A

75 32 - - S026032A - -

90 39 - H026039A S026039A W026039A U026039A

125 54 M026054A H026054A S026054A - U026054A

147 64 M026064A H026064A - - -

160 69 M026069A H026069A - - -

H026054AU026054AM026054AS026054A

H026026AU026026AW026026AM026026AS026026A

Page 77: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 75

Stand

ard

MPC

Toroida

l Series

0

110

100

90

80

70

60

50

40

30

20

10

40 6020 80 100 120 140 180160 220200

0.260 0.105 0.188 (inch) 6.60 2.67 4.78 (mm)

M026103A

0.260"

0.105"

0.188"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

26 12 0.02599 8.14 6.44

27 13 0.03550 8.06 6.36

28 16 0.05507 7.97 6.27

29 17 0.07362 7.90 6.20

30 20 0.10956 7.83 6.13

31 22 0.15181 7.77 6.07

32 25 0.21735 7.72 6.02

33 28 0.30723 7.67 5.97

34 33 0.45649 7.62 5.92

35 37 0.64575 7.58 5.88

36 42 0.92306 7.54 5.84

37 46 1.27858 7.52 5.82

38 52 1.81509 7.49 5.79

39 60 2.64701 7.46 5.76

40 68 3.78015 7.43 5.73

- - - - -

O.D.(max.) 7.24mm 0.285 in

I.D.(min.) 2.16 mm 0.085 in

HT.(max.) 5.54 mm 0.218 in

Window Area 0.038 cm2 7499 c.mils

Cross Section Area 0.092 cm2 0.014 in2

Path Length 1.363 cm 0.537 in

Volume 0.125 cm3 0.008 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 21 M026021A H026021A S026021A W026021A U026021A

50 41 - - - W026041A -

60 50 M026050A H026050A S026050A W026050A U026050A

75 62 - - S026062A - -

90 74 - H026074A S026074A W026074A U026074A

125 103 M026103A H026103A S026103A - U026103A

147 122 M026122A H026122A - - -

160 132 M026132A H026122A - - -

H026103AU026103AM026103AS026103A

H026050AU026050AW026050AM026050AS026050A

Page 78: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

76 POWDER CORES

POW

DER C

ORES

0

55

50

45

40

35

30

25

20

15

10

5

40 6020 80 100 120 140 200180160 260240220

0.310 0.156 0.125 (inch) 7.87 3.96 3.18 (mm)

M031052A

0.310"

0.156"

0.125"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

23 13 0.01103 9.77 5.07

24 15 0.01604 9.64 4.94

25 18 0.02423 9.52 4.82

26 20 0.03404 9.41 4.71

27 23 0.04936 9.33 4.63

28 26 0.07033 9.24 4.54

29 29 0.09870 9.17 4.47

30 33 0.14207 9.10 4.40

31 37 0.20065 9.04 4.34

32 41 0.28014 8.99 4.29

33 46 0.39667 8.94 4.24

34 53 0.57617 8.89 4.20

35 60 0.82296 8.85 4.15

36 67 1.15722 8.81 4.11

37 73 1.59461 8.79 4.09

38 83 2.27686 8.76 4.06

O.D.(max.) 8.51 mm 0.335 in

I.D.(min.) 3.43 mm 0.135 in

HT.(max.) 3.81 mm 0.150 in

Window Area 0.092 cm2 18156 c.mils

Cross Section Area 0.061 cm2 0.009 in2

Path Length 1.787 cm 0.704 in

Volume 0.109 cm3 0.007 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 11 M031011A H031011A S031011A W031011A U031011A

50 21 - - - W031021A -

60 25 M031025A H031025A S031025A W031025A U031025A

75 31 - - S031031A - -

90 37 - H031037A S031037A W031037A U031037A

125 52 M031052A H031052A S031052A - U031052A

147 62 M031062A H031062A - - -

160 66 M031066A H031066A - - -

H031052AU031052AM031052AS031052A

H031025AU031025AW031025AM031025AS031025A

Page 79: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 77

Stand

ard

MPC

Toroida

l Series

0

60

55

50

45

40

35

30

25

20

15

10

5

40 6020 80 100 120 140 180160 220 240 260 280 300200

0.380 0.188 0.125 (inch) 9.65 4.78 3.18 (mm)

M038053A

0.380"

0.188"

0.125"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

20 12 0.00545 12.05 5.57

21 13 0.00745 11.86 5.38

22 15 0.01084 11.69 5.21

23 18 0.01640 11.55 5.07

24 20 0.02297 11.42 4.94

25 23 0.03325 11.30 4.82

26 26 0.04752 11.19 4.71

27 29 0.06685 11.11 4.63

28 33 0.09588 11.02 4.54

29 37 0.13525 10.95 4.47

30 42 0.19421 10.88 4.40

31 47 0.27347 10.82 4.34

32 52 0.38159 10.77 4.29

33 58 0.53717 10.72 4.24

34 67 0.78228 10.67 4.19

35 75 1.10484 10.63 4.15

O.D.(max.) 10.29mm 0.405 in

I.D.(min.) 4.27 mm 0.168 in

HT.(max.) 3.81 mm 0.150 in

Window Area 0.142 cm2 28024 c.mils

Cross Section Area 0.075 cm2 0.012 in2

Path Length 2.180 cm 0.858 in

Volume 0.163 cm3 0.010 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 11 M038011A H038011A S038011A W038011A U038011A

50 21 - - - W038021A -

60 25 M038025A H038025A S038025A W038025A U038025A

75 32 - - S038032A - -

90 38 - H038038A S038038A W038038A U038038A

125 53 M038053A H038053A S038053A - U038053A

147 63 M038063A H038063A - - -

160 68 M038068A H038068A - - -

H038053AU038053AM038053AS038053A

H038025AU038025AW038025AM038025AS038025A

Page 80: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

78 POWDER CORES

POW

DER C

ORES

0

70

65

60

55

50

45

40

35

30

25

20

15

10

5

4020 60 80 100 120 140 160 180 200 220 240 260 280 300 320

0.380 0.188 0.156 (inch) 9.65 4.78 3.96 (mm)

M038066A

0.380"

0.188"

0.156"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

20 12 0.00608 12.05 6.36

21 13 0.00831 11.86 6.17

22 15 0.01210 11.69 6.00

23 18 0.01830 11.55 5.86

24 20 0.02563 11.42 5.73

25 23 0.03711 11.30 5.61

26 26 0.05303 11.19 5.50

27 29 0.07459 11.11 5.42

28 33 0.10698 11.02 5.33

29 37 0.15092 10.95 5.26

30 42 0.21670 10.88 5.19

31 47 0.30545 10.82 5.13

32 52 0.42579 10.77 5.08

33 58 0.59940 10.72 5.03

34 67 0.87290 10.67 4.98

35 75 1.23282 10.63 4.94

O.D.(max.) 10.29 mm 0.405 in

I.D.(min.) 4.27 mm 0.168 in

HT.(max.) 4.60 mm 0.181 in

Window Area 0.142 cm2 28024 c.mils

Cross Section Area 0.094 cm2 0.015 in2

Path Length 2.180 cm 0.858 in

Volume 0.206 cm3 0.013 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 14 M038014A H038014A S038014A W038014A U038014A

50 26 - - - W038026A -

60 32 M038032A H038032A S038032A W038032A U038032A

75 40 - - S038040A - -

90 48 - H038048A S038048A W038048A U038048A

125 66 M038066A H038066A S038066A - U038066A

147 78 M038078A H038078A - - -

160 84 M038084A H038084A - - -

H038066AU038066AM038066AS038066A

H038032AU038032AW038032AM038032AS038032A

Page 81: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 79

Stand

ard

MPC

Toroida

l Series

0

70

65

60

55

50

45

40

35

30

25

20

15

10

5

4020 60 80 100 120 140 160 180 200 220 240 260 280 300 340320

0.400 0.200 0.156 (inch) 10.16 5.08 3.96 (mm)

M040066A

0.400"

0.200"

0.156"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

20 13 0.00668 12.56 6.36

21 15 0.00972 12.37 6.17

22 17 0.01390 12.20 6.00

23 19 0.01958 12.06 5.86

24 22 0.02858 11.93 5.73

25 25 0.04089 11.81 5.61

26 28 0.05789 11.70 5.50

27 31 0.08084 11.62 5.42

28 36 0.11832 11.53 5.33

29 40 0.16541 11.46 5.26

30 45 0.23538 11.39 5.19

31 50 0.32943 11.33 5.13

32 56 0.46488 11.28 5.08

33 63 0.66005 11.23 5.03

34 72 0.95098 11.18 4.98

35 81 1.34982 11.14 4.94

O.D.(max.) 10.80mm 0.425 in

I.D.(min.) 4.57 mm 0.180 in

HT.(max.) 4.60 mm 0.181 in

Window Area 0.164 cm2 32366 c.mils

Cross Section Area 0.100 cm2 0.016 in2

Path Length 2.380 cm 0.937 in

Volume 0.238 cm3 0.015 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 14 M040014A H040014A S040014A W040014A U040014A

50 26 - - - W040026A -

60 32 M040032A H040032A S040032A W040032A U040032A

75 40 - - S040040A - -

90 48 - H040040A S040040A W040040A U040040A

125 66 M040066A H040066A S040066A - U040066A

147 78 M040078A H040078A - - -

160 84 M040084A H040084A - - -

H040066AU040066AM040066AS040066A

H040032AU040032AW040032AM040032AS040032A

Page 82: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

80 POWDER CORES

POW

DER C

ORES

0

55

50

45

40

35

30

25

20

15

10

5

8040 120 160 200 240 280 320 360

0.440 0.250 0.156 (inch) 11.18 6.35 3.96 (mm)

M044053A

0.440"

0.250"

0.156"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

17 11 0.00282 14.34 7.17

18 13 0.00420 14.08 6.91

19 15 0.00611 13.89 6.68

20 17 0.00874 13.65 6.48

21 20 0.01297 13.46 6.29

22 23 0.01882 13.29 6.12

23 26 0.02682 13.15 5.98

24 29 0.03770 13.02 5.85

25 33 0.05401 12.90 5.73

26 37 0.07655 12.79 5.62

27 42 0.10959 12.71 5.54

28 47 0.15457 12.62 5.45

29 52 0.21517 12.55 5.38

30 59 0.30882 12.48 5.31

31 66 0.43513 12.42 5.25

32 73 0.60639 12.37 5.20

O.D.(max.) 11.89 mm 0.468 in

I.D.(min.) 5.89 mm 0.232 in

HT.(max.) 4.72 mm 0.186 in

Window Area 0.273 cm2 53877 c.mils

Cross Section Area 0.090 cm2 0.014 in2

Path Length 2.690 cm 1.059 in

Volume 0.243 cm3 0.015 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 11 M044011A H044011A S044011A W044011A U044011A

50 21 - - - W044021A -

60 26 M044026A H044026A S044026A W044026A U044026A

75 32 - - S044032A - -

90 38 - H044038A S044038A W044038A U044038A

125 53 M044053A H044053A S044053A - U044053A

147 63 M044063A H044063A - - -

160 68 M044068A H044068A - - -

H044053AU044053AM044053AS044053A

H044026AU044026AW044026AM044026AS044026A

Page 83: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 81

Stand

ard

MPC

Toroida

l Series

0

60

55

50

45

40

35

30

25

20

15

10

5

50 100 150 200 250 300 450350 500400

0.500 0.300 0.187 (inch) 12.70 7.62 4.75 (mm)

M050056A

0.500"

0.300"

0.187"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

17 14 0.00406 15.91 7.96

18 16 0.00585 15.65 7.70

19 19 0.00877 15.42 7.47

20 21 0.01223 15.22 7.27

21 24 0.01763 15.03 7.08

22 28 0.02596 14.86 6.91

23 31 0.03622 14.72 6.77

24 35 0.05154 14.59 6.64

25 40 0.07416 14.47 6.52

26 45 0.10546 14.36 6.41

27 50 0.14779 14.28 6.33

28 56 0.20862 14.19 6.24

29 63 0.29530 14.12 6.17

30 71 0.42097 14.05 6.10

31 79 0.58999 13.99 6.04

32 87 0.81864 13.94 5.99

O.D.(max.) 13.46 mm 0.530 in

I.D.(min.) 6.99 mm 0.275 in

HT.(max.) 5.51 mm 0.217 in

Window Area 0.383 cm2 75586 c.mils

Cross Section Area 0.114 cm2 0.018 in2

Path Length 3.120 cm 1.228 in

Volume 0.356 cm3 0.022 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 12 M050012A H050012A S050012A W050012A U050012A

50 22 - - - W050022A -

60 27 M050027A H050027A S050027A W050027A U050027A

75 34 - - S050034A - -

90 40 - H050040A S050040A W050040A U050040A

125 56 M050056A H050056A S050056A - U050056A

147 67 M050067A H050067A - - -

160 72 M050072A H050072A - - -

H050056AU050056AM050056AS050056A

H050027AU050027AW050027AM050027AS050027A

Page 84: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

82 POWDER CORES

POW

DER C

ORES

0

75

70

65

60

55

50

45

40

35

30

25

20

15

10

5

10050 150 200 250 300 350 400 450 500 550 600

0.650 0.400 0.250 (inch) 16.51 10.16 6.35 (mm)

M065072A

0.650"

0.400"

0.250"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

14 14 0.00256 20.83 10.54

15 16 0.00368 20.46 10.17

16 18 0.00525 20.14 9.85

17 21 0.00770 19.85 9.56

18 24 0.01108 19.53 9.30

19 27 0.01575 19.36 9.07

20 30 0.02207 19.16 8.87

21 34 0.03154 18.97 8.68

22 39 0.04566 18.80 8.51

23 44 0.06493 18.66 8.37

24 49 0.09114 18.53 8.24

25 56 0.13113 18.41 8.12

26 63 0.18648 18.30 8.01

27 70 0.26132 18.22 7.93

28 78 0.36700 18.13 7.84

29 87 0.51505 18.06 7.77

O.D.(max.) 17.40 mm 0.685 in

I.D.(min.) 9.53 mm 0.375 in

HT.(max.) 7.11 mm 0.280 in

Window Area 0.713 cm2 140712 c.mils

Cross Section Area 0.192 cm2 0.030 in2

Path Length 4.110 cm 1.618 in

Volume 0.789 cm3 0.048 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 15 M065015A H065015A S065015A W065015A U065015A

50 29 - - - W065029A -

60 35 M065035A H065035A S065035A W065035A U065035A

75 43 - - S065043A - -

90 52 - H065052A S065052A W065052A U065052A

125 72 M065072A H065072A S065072A - U065072A

147 88 M065088A H065088A - - -

160 92 M065092A H065092A - - -

H065072AU065072AM065072AS065072A

H065035AU065035AW065035AM065035AS065035A

Page 85: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 83

Stand

ard

MPC

Toroida

l Series

0

90

80

70

60

50

40

30

20

10

10050 150 200 250 300 350 400 450 500 550 600

0.680 0.380 0.250 (inch) 17.27 9.65 6.35 (mm)

M068089A

0.680"

0.380"

0.250"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

14 13 0.00250 21.46 10.54

15 15 0.00362 21.09 10.17

16 17 0.00521 20.77 9.85

17 19 0.00733 20.48 9.56

18 22 0.01068 20.22 9.30

19 25 0.01533 19.99 9.07

20 29 0.02243 19.79 8.87

21 32 0.03122 19.60 8.68

22 37 0.04555 19.43 8.51

23 41 0.06362 19.29 8.37

24 46 0.08997 19.16 8.24

25 52 0.12804 19.04 8.12

26 59 0.18366 18.93 8.01

27 66 0.25911 18.85 7.93

28 74 0.36615 18.76 7.84

29 82 0.51050 18.69 7.77

O.D.(max.) 18.03 mm 0.710 in

I.D.(min.) 9.02 mm 0.355 in

HT.(max.) 7.11 mm 0.280 in

Window Area 0.576 cm2 113675 c.mils

Cross Section Area 0.232 cm2 0.036 in2

Path Length 4.140 cm 1.630 in

Volume 0.960 cm3 0.059 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 19 M068019A H068019A S068019A W068019A U068019A

50 35 - - - W068035A -

60 43 M068043A H068043A S068043A W068043A U068043A

75 53 - - S068053A - -

90 64 - H068064A S068064A W068064A U068064A

125 89 M068089A H068089A S068089A - U068089A

147 105 M068105A H068105A - - -

160 114 M068114A H068114A - - -

H068089AU068089AM068089AS068089A

H068043AU068043AW068043AM068043AS068043A

Page 86: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

84 POWDER CORES

POW

DER C

ORES

0

70

65

60

55

50

45

40

35

30

25

20

15

10

5

10050 150 200 250 300 350 400 450 500 550 600 650 700

0.800 0.500 0.250 (inch) 20.32 12.70 6.35 (mm)

M080068A

0.800"

0.500"

0.250"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

11 12 0.00115 25.86 11.87

12 14 0.00170 25.36 11.37

13 16 0.00244 24.90 10.91

14 18 0.00347 24.53 10.54

15 21 0.00508 24.16 10.17

16 24 0.00737 23.84 9.85

17 27 0.01042 23.55 9.56

18 31 0.01506 23.29 9.30

19 35 0.02148 23.06 9.07

20 39 0.03019 22.86 8.87

21 45 0.04394 22.67 8.68

22 50 0.06161 22.50 8.51

23 56 0.08697 22.36 8.37

24 63 0.12333 22.23 8.24

25 71 0.17498 22.11 8.12

26 80 0.24924 22.00 8.01

O.D.(max.) 21.10 mm 0.831 in

I.D.(min.) 12.07 mm 0.475 in

HT.(max.) 7.11 mm 0.280 in

Window Area 1.140 cm2 224982 c.mils

Cross Section Area 0.226 cm2 0.035 in2

Path Length 5.090 cm 2.004 in

Volume 1.150 cm3 0.070 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 14 M080014A H080014A S080014A W080014A U080014A

50 26 - - - W080026A -

60 32 M080032A H080032A S080032A W080032A U080032A

75 41 - - S080041A - -

90 49 - H080049A S080049A W080049A U080049A

125 68 M080068A H080068A S080068A - U080068A

147 81 M080081A H080081A - - -

160 87 M080087A H080087A - - -

H080068AU080068AM080068AS080068A

H080032AU080032AW080032AM080032AS080032A

Page 87: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 85

Stand

ard

MPC

Toroida

l Series

0

100

90

80

70

60

50

40

30

20

10

50 150 200 250 300 350 400 450 500 550 600 650 700 750

0.900 0.550 0.300 (inch) 22.86 13.97 7.62 (mm)

M090090A

0.900"

0.550"

0.300"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

11 14 0.00156 28.38 13.14

12 16 0.00225 27.88 12.64

13 18 0.00319 27.42 12.18

14 21 0.00470 27.05 11.81

15 24 0.00674 26.68 11.44

16 27 0.00962 26.36 11.12

17 31 0.01389 26.07 10.83

18 35 0.01974 25.81 10.57

19 39 0.02779 25.58 10.34

20 44 0.03955 25.38 10.14

21 50 0.05668 25.19 9.95

22 56 0.08011 25.02 9.78

23 63 0.11358 24.88 9.64

24 71 0.16135 24.75 9.51

25 80 0.22888 24.63 9.39

26 89 0.32188 24.52 9.28

O.D.(max.) 23.62 mm 0.930 in

I.D.(min.) 13.39 mm 0.527 in

HT.(max.) 8.38 mm 0.330 in

Window Area 1.410 cm2 278267 c.mils

Cross Section Area 1.2510.331 cm2 0.051 in2

Path Length 5.670 cm 2.232 in

Volume 1.880 cm3 0.115 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 19 M090019A H090019A S090019A W090019A U090019A

50 35 - - - W090035A -

60 43 M090043A H090043A S090043A W090043A U090043A

75 54 - - S090054A - -

90 65 - H090065A S090065A W090065A U090065A

125 90 M090090A H090090A S090090A - U090090A

147 106 M090106A H090106A - - -

160 115 M090115A H090115A - - -

H090090AU090090AM090090AS090090A

H090043AU090043AW090043AM090043AS090043A

Page 88: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

86 POWDER CORES

POW

DER C

ORES

0

110

100

90

80

70

60

50

40

30

20

10

10050 150 200 250 300 350 400 450 500 550 600 650 750700

0.920 0.567 0.350 (inch) 23.60 14.40 8.89 (mm)

M092105A

0.920"

0.567"

0.350"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

10 13 0.00128 29.64 15.04

11 15 0.00185 29.06 14.46

12 17 0.00265 28.56 13.96

13 19 0.00374 28.10 13.50

14 22 0.00546 27.73 13.13

15 25 0.00778 27.36 12.76

16 28 0.01106 27.04 12.44

17 32 0.01590 26.75 12.15

18 36 0.02252 26.49 11.89

19 40 0.03161 26.26 11.66

20 46 0.04585 26.06 11.46

21 51 0.06411 25.87 11.27

22 58 0.09200 25.70 11.10

23 65 0.12996 25.56 10.96

24 73 0.18397 25.43 10.83

25 82 0.26015 25.31 10.71

O.D.(max.) 24.30 mm 0.957 in

I.D.(min.) 13.77 mm 0.542 in

HT.(max.) 9.70 mm 0.382 in

Window Area 1.490 cm2 294055 c.mils

Cross Section Area 0.388 cm2 0.060 in2

Path Length 5.880 cm 2.315 in

Volume 2.280 cm3 0.139 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 22 M092022A H092022A S092022A W092022A U092022A

50 42 - - - W092042A -

60 51 M092051A H092051A S092051A W092051A U092051A

75 63 - - S092063A - -

90 76 - H092076A S092076A W092076A U092076A

125 105 M092105A H092105A S092105A - U092105A

147 124 M092124A H092124A - - -

160 135 M092135A H092135A - - -

H092105AU092105AM092105AS092105A

H092051AU092051AW092051AM092051AS092051A

Page 89: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 87

Stand

ard

MPC

Toroida

l Series

0

170

160

150

140

130

120

110

100

90

80

70

60

50

40

30

20

10

200100 300 400 500 600 700 800 900 1000

1.060 0.580 0.440 (inch) 26.92 14.73 11.18 (mm)

M106157A

1.060"

0.580"

0.440"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

10 13 0.00160 33.04 17.33

11 15 0.00233 32.46 16.75

12 17 0.00333 31.96 16.25

13 20 0.00494 31.50 15.79

14 22 0.00685 31.13 15.42

15 25 0.00977 30.76 15.05

16 29 0.01439 30.44 14.73

17 33 0.02059 30.15 14.44

18 37 0.02906 29.89 14.18

19 42 0.04167 29.66 13.95

20 47 0.05882 29.46 13.75

21 53 0.08365 29.27 13.65

22 60 0.11950 29.10 13.39

23 66 0.16568 28.96 13.25

24 75 0.23732 28.83 13.12

25 84 0.33461 28.71 13.00

O.D.(max.) 27.70 mm 1.091 in

I.D.(min.) 14.10 mm 0.555 in

HT.(max.) 11.99 mm 0.472 in

Window Area 1.560 cm2 307870 c.mils

Cross Section Area 0.654 cm2 0.101 in2

Path Length 6.350 cm 2.500 in

Volume 4.150 cm3 0.253 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 32 M106032A H106032A S106032A W106032A U106032A

50 62 - - - W106062A -

60 75 M106075A H106075A S106075A W106075A U106075A

75 94 - - S106094A - -

90 113 - H106113A S106113A W106113A U106113A

125 157 M106157A H106157A S106157A - U106157A

147 185 M106185A H106185A - - -

160 201 M106201A H106201A - - -

H106157AU106157AM106157AS106157A

H106075AU106075AW106075AM106075AS106075A

Page 90: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

88 POWDER CORES

POW

DER C

ORES

0

130

120

110

100

90

80

70

60

50

40

30

20

10

200100 300 400 500 600 700 800 900 1000 1200 1300

1.300 0.785 0.420 (inch) 33.02 19.94 10.67 (mm)

M130127A

1.300"

0.785"

0.420"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

8 15 0.00117 40.51 18.29

9 17 0.00167 39.79 17.57

10 19 0.00235 39.17 16.95

11 22 0.00343 38.59 16.37

12 25 0.00492 38.09 15.87

13 28 0.00694 37.63 15.41

14 32 0.01001 37.26 15.04

15 36 0.01413 36.89 14.67

16 41 0.02043 36.57 14.35

17 46 0.02883 36.28 14.06

18 52 0.04103 36.02 13.80

19 58 0.05780 35.79 13.57

20 65 0.08171 35.59 13.37

21 74 0.11733 35.40 13.18

22 83 0.16606 35.23 13.01

23 92 0.23200 35.09 12.87

O.D.(max.) 33.83 mm 1.332 in

I.D.(min.) 19.30 mm 0.760 in

HT.(max.) 11.61 mm 0.457 in

Window Area 2.930 cm2 578243 c.mils

Cross Section Area 0.672 cm2 0.104 in2

Path Length 8.150 cm 3.209 in

Volume 5.480 cm3 0.334 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 28 M130028A H130028A S130028A W130028A U130028A

50 50 - - - W130050A -

60 61 M130061A H130061A S130061A W130061A U130061A

75 76 - - S130076A - -

90 91 - H130091A S130091A W130091A U130091A

125 127 M130127A H130127A S130127A - U130127A

147 150 M130150A H130150A - - -

160 163 M130163A H130163A - - -

H130127AU130127AM130127AS130127A

H130061AU130061AW130061AM130061AS130061A

Page 91: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 89

Stand

ard

MPC

Toroida

l Series

0

80

70

60

50

40

30

20

10

200100 300 400 500 600 700 800 900 1000 1100 1200 1300 1400

1.350 0.580 0.440 (inch) 34.29 23.37 8.89 (mm)

M135079A

1.350"

0.580"

0.440"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

8 18 0.00119 41.78 16.51

9 20 0.00167 41.06 15.79

10 23 0.00243 40.44 15.17

11 26 0.00346 39.86 14.59

12 30 0.00503 39.36 14.09

13 34 0.00719 38.90 13.63

14 38 0.01014 38.53 13.26

15 43 0.01440 38.16 12.89

16 48 0.02040 37.84 12.57

17 54 0.02886 37.55 12.28

18 61 0.04105 37.22 12.02

19 69 0.05866 37.06 11.79

20 77 0.08256 36.86 11.59

21 87 0.11766 36.67 11.40

22 98 0.16725 36.50 11.23

23 109 0.23445 36.36 11.09

O.D.(max.) 35.10 mm 1.382 in

I.D.(min.) 22.56 mm 0.888 in

HT.(max.) 9.83 mm 0.387 in

Window Area 4.010 cm2 791384 c.mils

Cross Section Area 0.454 cm2 0.070 in2

Path Length 8.950 cm 3.524 in

Volume 4.060 cm3 0.248 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 16 M135016A H135016A S135016A W135016A U135016A

50 31 - - - W135031A -

60 38 M135038A H135038A S135038A W135038A U135038A

75 47 - - S135047A - -

90 57 - H135057A S135057A W135057A U135057A

125 79 M135079A H135079A S135079A - U135079A

147 93 M135093A H135093A - - -

160 101 M135101A H135101A - - -

H135079AU135079AM135079AS135079A

H135038AU135038AW135038AM135038AS135038A

Page 92: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

90 POWDER CORES

POW

DER C

ORES

0

120

110

100

90

80

70

60

50

40

30

20

10

200100 300 400 500 600 700 800 900 1000 1200 14001300

1.410 0.880 0.412 (inch) 35.81 22.35 10.46 (mm)

M141117A

1.410"

0.880"

0.412"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

9 19 0.00187 42.59 17.31

10 22 0.00273 41.97 16.69

11 25 0.00390 41.39 16.11

12 28 0.00551 40.89 15.61

13 32 0.00794 40.43 15.15

14 36 0.01128 40.06 14.78

15 41 0.01611 39.69 14.41

16 46 0.02295 39.37 14.09

17 52 0.03262 39.08 13.80

18 58 0.04581 38.82 13.54

19 65 0.06485 38.59 13.31

20 73 0.09186 38.39 13.11

21 82 0.13015 38.20 12.92

22 93 0.18627 38.03 12.75

23 103 0.26001 37.89 12.61

24 116 0.36910 37.76 12.48

O.D.(max.) 36.63 mm 1.442 in

I.D.(min.) 21.54 mm 0.848 in

HT.(max.) 11.28 mm 0.447 in

Window Area 3.640 cm2 718363 c.mils

Cross Section Area 0.678 cm2 0.105 in2

Path Length 8.980 cm 3.535 in

Volume 6.088 cm3 0.372 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 24 M141024A H141024A S141024A W141024A U141024A

50 47 - - - W141047A -

60 56 M141056A H141056A S141056A W141056A U141056A

75 70 - - S141070A - -

90 84 - H141084A S141084A W141084A U141084A

125 117 M141117A H141117A S141117A - U141117A

147 138 M141138A H141138A - - -

160 150 M141150A H141150A - - -

H141117AU141117AM141117AS141117A

H141056AU141056AW141056AM141056AS141056A

Page 93: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 91

Stand

ard

MPC

Toroida

l Series

0

170

160

150

140

130

120

110

100

90

80

70

60

50

40

30

20

10

200100 300 400 500 600 700 800 900 1000 1100 1200 1300 15001400

1.570 0.950 0.570 (inch) 39.88 24.13 14.48 (mm)

M135079A

1.570"

0.950"

0.570"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

9 21 0.00263 46.68 21.33

10 24 0.00379 46.06 20.71

11 27 0.00537 45.48 20.13

12 31 0.00778 44.98 19.63

13 35 0.01107 44.52 19.17

14 39 0.01557 44.15 18.80

15 44 0.02204 43.78 18.43

16 50 0.03179 43.46 18.11

17 56 0.04477 43.17 17.82

18 63 0.06341 42.91 17.56

19 71 0.09027 42.68 17.33

20 80 0.12830 42.48 17.13

21 90 0.18204 42.29 16.94

22 101 0.25780 42.12 16.77

23 112 0.36031 41.98 16.63

24 126 0.51094 41.85 16.50

O.D.(max.) 40.72mm 1.603 in

I.D.(min.) 23.30 mm 0.917 in

HT.(max.) 15.37 mm 0.605 in

Window Area 4.270 cm2 842695 c.mils

Cross Section Area 1.072 cm2 0.166 in2

Path Length 9.840 cm 3.874 in

Volume 10.500 cm3 0.641 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 35 M157035A H157035A S157035A W157035A U157035A

50 67 - - - W157067A -

60 81 M157081A H157081A S157081A W157081A U157081A

75 101 - - S157101A - -

90 121 - H157121A S157121A W157121A U157121A

125 168 M157168A H157168A S157168A - U157168A

147 198 M157198A H157198A - - -

160 215 M157215A H157215A - - -

H157168AU157168AM157168AS157168A

H157081AU157081AW157081AM157081AS157081A

Page 94: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

92 POWDER CORES

POW

DER C

ORES

0

300

280

260

240

220

200

180

160

140

120

100

80

60

40

20

300150 450 600 750 900 1050 1200 1350 1500 1650

1.840 0.950 0.710 (inch) 46.74 24.13 18.03 (mm)

M184281A

1.840"

0.950"

0.710"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

9 21 0.00339 53.59 24.88

10 24 0.00489 52.97 24.26

11 27 0.00693 52.39 23.68

12 31 0.01004 51.89 23.18

13 35 0.01429 51.43 22.72

14 39 0.02009 51.06 22.35

15 44 0.02844 50.69 21.98

16 50 0.04102 50.37 21.66

17 56 0.05777 50.08 21.37

18 63 0.08183 49.82 21.11

19 71 0.11649 49.59 20.88

20 80 0.16557 49.39 20.68

21 90 0.23493 49.20 20.49

22 101 0.33269 49.03 20.32

23 112 0.46498 48.89 20.18

24 126 0.65936 48.76 20.05

O.D.(max.) 47.63 mm 1.875 in

I.D.(min.) 23.32 mm 0.918 in

HT.(max.) 18.92 mm 0.745 in

Window Area 4.270 cm2 842695 c.mils

Cross Section Area 1.990 cm2 0.308 in2

Path Length 10.740 cm 4.228 in

Volume 21.300 cm3 1.300 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 59 M184059A H184059A S184059A W184059A U184059A

50 112 - - - W184112A -

60 135 M184135A H184135A S184135A W184135A U184135A

75 169 - - S184169A - -

90 202 - H184202A S184202A W184202A U184202A

125 281 M184281A H184281A S184281A - U184281A

147 330 M184330A H184330A - - -

160 360 M184360A H184360A - - -

H184281AU184281AM184281AS184281A

H184135AU184135AW184135AM184135AS184135A

Page 95: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 93

Stand

ard

MPC

Toroida

l Series

0

190180170160150140130120110100908070605040302010

300150 450 600 750 900 1050 1200 1350 1500 1650 1800

1.840 1.130 0.600 (inch) 46.74 28.70 15.24 (mm)

M184178A

1.840"

1.130"

0.600"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

9 26 0.00352 53.59 22.09

10 29 0.00495 52.97 21.47

11 33 0.00709 52.39 20.89

12 37 0.01002 51.89 20.39

13 42 0.01435 51.43 19.93

14 47 0.02026 51.06 19.56

15 54 0.02920 50.69 19.19

16 60 0.04118 50.37 18.87

17 68 0.05870 50.08 18.58

18 76 0.08260 49.82 18.32

19 86 0.11806 49.59 18.09

20 96 0.16623 49.39 17.89

21 108 0.23587 49.20 17.70

22 121 0.33348 49.03 17.53

23 135 0.46894 48.89 17.39

24 152 0.66552 48.76 17.26

O.D.(max.) 47.63mm 1.875 in

I.D.(min.) 27.89 mm 1.098 in

HT.(max.) 16.13 mm 0.635 in

Window Area 6.110 cm2 1205824 c.mils

Cross Section Area 1.340 cm2 0.208 in2

Path Length 11.630 cm 4.579 in

Volume 15.580 cm3 0.951 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 37 M184037A H184037A S184037A W184037A U184037A

50 70 - - - W184070A -

60 86 M184086A H184086A S184086A W184086A U184086A

75 107 - - S184107A - -

90 128 - H184128A S184128A W184128A U184128A

125 178 M184178A H184178A S184178A - U184178A

147 210 M184210A H184210A - - -

160 228 M184228A H184228A - - -

H184178AU184178AM184178AS184178A

H184086AU184086AW184086AM184086AS184086A

Page 96: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

94 POWDER CORES

POW

DER C

ORES

0

160

150

140

130

120

110

100

90

80

70

60

50

40

30

20

10

300150 450 600 750 900 1050 1200 1350 1500 1650 19501800

2.000 12.50 0.530 (inch) 50.80 31.75 13.46 (mm)

M200152A

2.000"

12.50"

0.530"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

9 29 0.00373 57.65 20.31

10 33 0.00535 57.03 19.69

11 37 0.00756 56.45 19.11

12 42 0.01082 55.95 18.61

13 47 0.01527 55.49 18.15

14 53 0.02173 55.12 17.78

15 60 0.03086 54.75 17.41

16 67 0.04373 54.43 17.09

17 76 0.06239 54.14 16.80

18 85 0.08785 53.88 16.54

19 95 0.12402 53.65 16.31

20 107 0.17620 53.45 16.11

21 120 0.24923 53.26 15.92

22 135 0.35381 53.09 15.75

23 150 0.49549 52.95 15.61

24 168 0.69950 52.82 15.48

O.D.(max.) 51.69 mm 2.035 in

I.D.(min.) 30.94 mm 1.218 in

HT.(max.) 14.35 mm 0.565 in

Window Area 7.500 cm2 1480144 c.mils

Cross Section Area 1.251 cm2 0.194 in2

Path Length 12.730 cm 5.012 in

Volume 15.930 cm3 0.972 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 32 M200032A H200032A S200032A W200032A U200032A

50 60 - - - W200060A -

60 73 M200073A H200073A S200073A W200073A U200073A

75 91 - - S200091A - -

90 109 - H200109A S200109A W200109A U200109A

125 152 M200152A H200152A S200152A - U200152A

147 179 M200179A H200179A - - -

160 195 M200195A H200195A - - -

H184281AU184281AM184281AS184281A

H184135AU184135AW184135AM184135AS184135A

Page 97: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 95

Stand

ard

MPC

Toroida

l Series

0

300

280

260

240

220

200

180

160

140

120

100

80

60

40

20

400200 600 800 1000 1200 1400 1600 1800 2000 2200

2.250 10.39 0.600 (inch) 57.15 26.39 15.24 (mm)

M225287A

2.250"

10.39"

0.600"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

9 23 0.00386 63.96 22.06

10 26 0.00551 63.34 21.44

11 30 0.00800 62.76 20.86

12 34 0.01144 62.26 20.36

13 39 0.01655 61.80 19.90

14 43 0.02303 61.43 19.53

15 49 0.03292 61.06 19.16

16 55 0.04690 60.74 18.84

17 62 0.06649 60.45 18.55

18 70 0.09451 60.19 18.29

19 78 0.13302 59.96 18.06

20 88 0.18930 59.76 17.86

21 99 0.26861 59.57 17.67

22 111 0.38004 59.40 17.50

23 124 0.53509 59.26 17.36

24 138 0.75063 59.13 17.23

O.D.(max.) 58.00 mm 2.283 in

I.D.(min.) 25.60 mm 1.008 in

HT.(max.) 16.10 mm 0.634 in

Window Area 5.140 cm2 1014392 c.mils

Cross Section Area 2.290 cm2 0.355 in2

Path Length 12.500 cm 4.921 in

Volume 28.600 cm3 1.745 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 60 M225060A H225060A S225060A W225060A U225060A

50 115 - - - W225115A -

60 138 M225138A H225138A S225138A W225138A U225138A

75 172 - - S225172A - -

90 207 - H225207A S225207A W225207A U225207A

125 287 M225287A H225287A S225287A - U225287A

147 306 M225306A H225306A - - -

160 333 M225333A H225333A - - -

H225287AU225287AM225287AS225287A

H225138AU225138AW225138AM225138AS225138A

Page 98: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

96 POWDER CORES

POW

DER C

ORES

0

170

160

150

140

130

120

110

100

90

80

70

60

50

40

30

20

10

400200 600 800 1000 1200 1400 1600 1800 2000 2200

2.250 14.00 0.550 (inch) 57.15 35.56 13.97 (mm)

M225156A

2.250"

14.00"

0.550"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

8 29 0.00317 64.68 21.54

9 33 0.00455 63.96 20.82

10 37 0.00643 63.34 20.20

11 42 0.00920 62.76 19.62

12 48 0.01326 62.26 19.12

13 54 0.01881 61.80 18.66

14 60 0.02637 61.43 18.29

15 68 0.03750 61.06 17.92

16 76 0.05319 60.74 17.60

17 85 0.07481 60.45 17.31

18 96 0.10638 60.19 17.05

19 108 0.15117 59.96 16.82

20 120 0.21187 59.76 16.62

21 135 0.30060 59.57 16.43

22 152 0.42713 59.40 16.26

23 169 0.59855 59.26 16.12

O.D.(max.) 58.00 mm 2.283 in

I.D.(min.) 34.70 mm 1.366 in

HT.(max.) 14.86 mm 0.585 in

Window Area 9.480 cm2 1870902 c.mils

Cross Section Area 1.444 cm2 0.224 in2

Path Length 14.300 cm 5.630 in

Volume 20.650 cm3 1.260 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 33 M225033A H225033A S225033A W225033A U225033A

50 62 - - - W225062A -

60 75 M225075A H225075A S225075A W225075A U225075A

75 94 - - S225094A - -

90 112 - H225112A S225112A W225112A U225112A

125 156 M225156A H225156A S225156A - U225156A

147 185 M225185A H225185A - - -

160 200 M225200A H225200A - - -

H225156AU225156AM225156AS225156A

H225075AU225075AW225075AM225075AS225075A

Page 99: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 97

Stand

ard

MPC

Toroida

l Series

0

450

400

350

300

250

200

150

100

50

200 400 600 800 1000 1200 1600 220020001800

2.441 1.283 0.984 (inch) 62.00 32.60 25.00 (mm)

M244402A

2.441"

1.283"

0.984"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

8 26 0.00454 69.78 32.95

9 30 0.00656 69.06 32.23

10 33 0.00914 68.44 31.61

11 38 0.01326 67.86 31.03

12 43 0.01894 67.36 30.53

13 48 0.02659 66.90 30.07

14 54 0.03769 66.52 29.69

15 61 0.05373 66.16 29.33

16 68 0.07572 65.84 29.01

17 77 0.10771 65.54 28.71

18 87 0.15399 65.28 28.45

19 97 0.21630 65.06 28.23

20 108 0.30305 64.86 28.03

21 123 0.35739 64.66 27.83

22 137 0.61477 64.50 27.67

- - - - -

O.D.(max.) 63.10 mm 2.484 in

I.D.(min.) 31.37 mm 1.235 in

HT.(max.) 26.27 mm 1.034 in

Window Area 7.730 cm2 1525535 c.mils

Cross Section Area 3.675 cm2 0.570 in2

Path Length 14.370 cm 5.657 in

Volume 52.800 cm3 3.222 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 83 M244083A H244083A S244083A W244083A U244083A

50 161 - - - W244161A -

60 192 M244192A H244192A S244192A W244192A U244192A

75 241 - - S244241A - -

90 289 - H244289A S244289A W244289A U244289A

125 402 M244402A H244402A S244402A - U244402A

147 - - - - - -

160 - - - - - -

H244402AU244402AM244402AS244402A

H244192AU244192AW244192AM244192AS244192A

Page 100: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

98 POWDER CORES

POW

DER C

ORES

0 600300 900 1200 1500 1800 2100 2400 2700 3000

450

400

350

300

250

200

150

100

50

2.917 1.783 1.378 (inch) 74.10 49.30 35.00 (mm)

M292429A

2.917"

1.783"

1.378"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

10 48 0.00165 80.55 41.62

11 54 0.00234 79.97 41.04

12 61 0.00330 79.47 40.54

13 69 0.00469 79.01 40.08

14 77 0.00646 78.63 39.70

15 86 0.00901 78.27 39.34

16 97 0.01268 77.95 39.02

17 109 0.01797 77.64 38.71

18 123 0.02540 77.38 38.45

19 137 0.03500 77.16 38.23

20 153 0.04848 76.96 38.03

21 173 0.06977 76.76 37.83

22 194 0.09715 76.60 37.67

23 239 0.18051 76.34 37.41

24 243 0.19014 76.32 37.39

25 297 0.34442 76.12 37.19

O.D.(max.) 75.20 mm 2.961 in

I.D.(min.) 44.07 mm 1.735 in

HT.(max.) 36.27 mm 1.428 in

Window Area 15.250 cm2 3009310 c.mils

Cross Section Area 5.040 cm2 0.781 in2

Path Length 18.380 cm 7.24 in

Volume 92.640 cm3 5.653 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 89 M292089A H292089A S292089A W292089A U292089A

50 171 - - - W292171A -

60 204 M292204A H292204A S292204A W292204A U292204A

75 257 - - S292257A - -

90 309 - H292309A S292309A W292309A U292309A

125 429 M292429A H292429A S292429A - U292429A

147 - - - - - -

160 - - - - - -

H292429AU292429AM292429AS292429A

H292429AU292429AM292429AS292429A

Page 101: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 99

Stand

ard

MPC

Toroida

l Series

0

150

140

130

120

110

100

90

80

70

60

50

40

30

20

10

600300 900 1200 1500 1800 2100 2400 2700 3000

3.063 1.938 0.500 (inch) 77.80 49.23 12.70 (mm)

M306142A

3.063"

1.938"

0.500"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

8 41 0.00493 109.55 24.46

9 47 0.00713 108.83 23.74

10 53 0.01015 108.21 23.12

11 60 0.01447 107.63 22.54

12 67 0.02038 107.13 22.04

13 76 0.02915 106.67 21.58

14 84 0.04065 106.30 21.21

15 95 0.05768 105.93 20.84

16 106 0.08169 105.61 20.52

17 119 0.11532 105.32 20.23

18 134 0.16350 105.06 19.97

19 150 0.23118 104.83 19.74

20 168 0.32660 104.63 19.54

21 188 0.46097 104.44 19.35

22 211 0.65286 104.27 19.18

23 235 0.91645 104.13 19.04

O.D.(max.) 78.90 mm 3.106 in

I.D.(min.) 48.20 mm 1.898 in

HT.(max.) 13.84 mm 0.545 in

Window Area 17.990 cm2 3550371 c.mils

Cross Section Area 1.777 cm2 0.275 in2

Path Length 19.600 cm 7.717 in

Volume 34.700 cm3 2.118 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 30 M306030A H306030A S306030A W306030A U306030A

50 56 - - - W306056A -

60 68 M306068A H306068A S306068A W306068A U306068A

75 84 - - S306084A - -

90 102 - H306102A S306102A W306102A U306102A

125 142 M306142A H306142A S306142A - U306142A

147 - - - - - -

160 - - - - - -

H306142AU306142AM306142AS306142A

H306142AU306142AM306142AS306142A

Page 102: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

100 POWDER CORES

POW

DER C

ORES

0

190180170160150140130120110100

908070605040302010

300 600 900 1200 1500 1800 2100 300027002400

3.063 1.938 0.625 (inch) 77.80 49.23 15.88 (mm)

M306178A

3.063"

1.938"

0.625"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

8 41 0.00547 85.58 23.70

9 47 0.00791 84.86 22.98

10 53 0.01125 84.24 22.36

11 60 0.01604 83.66 21.78

12 67 0.02260 83.16 21.28

13 76 0.03233 82.70 20.82

14 84 0.04508 82.33 20.45

15 95 0.06396 81.96 20.08

16 106 0.09058 81.64 19.76

17 119 0.12789 81.35 19.47

18 134 0.18131 81.09 19.21

19 150 0.25637 80.86 18.98

20 168 0.36218 80.66 18.78

21 188 0.51119 80.47 18.59

22 211 0.72399 80.30 18.42

23 235 1.01629 80.16 18.28

O.D.(max.) 78.90 mm 3.106 in

I.D.(min.) 48.20 mm 1.898 in

HT.(max.) 17.02 mm 0.670 in

Window Area 17.990 cm2 3550371 c.mils

Cross Section Area 2.270 cm2 0.352 in2

Path Length 19.600 cm 7.717 in

Volume 45.300 cm3 2.764 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 37 M306037A H306037A S306037A W306037A U306037A

50 71 - - - W184112A -

60 85 M306085A H306085A S306085A W306085A U306085A

75 107 - - S306107A - -

90 128 - H306128A S306128A W306128A U306128A

125 178 M306178A H306178A S306178A - U306178A

147 - - - - - -

160 - - - - - -

H306178AU306178AM306178AS306178A

H306085AU306085AW306085AM306085AS306085A

Page 103: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 101

Stand

ard

MPC

Toroida

l Series

0 300 600 900 1200 1500 1800 2100 300027002400

120

110

100

90

80

70

60

50

40

30

20

10

4.000 2.250 0.535 (inch) 101.60 57.15 13.59 (mm)

M400092A

4.000"

2.250"

0.535"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

8 47 0.00744 109.55 21.54

9 54 0.01079 108.83 20.82

10 63 0.01588 108.21 20.20

11 72 0.02285 107.63 19.62

12 81 0.03243 107.13 19.12

13 91 0.04594 106.67 18.66

14 103 0.06561 106.30 18.29

15 117 0.09350 105.93 17.92

16 132 0.13389 105.61 17.60

17 147 0.18750 105.32 17.31

18 167 0.26819 105.06 17.05

19 187 0.37934 104.83 16.82

20 210 0.53734 104.63 16.62

21 239 0.77132 104.44 16.43

22 268 1.09144 104.27 16.26

- - - - -

O.D.(max.) 102.87 mm 4.050 in

I.D.(min.) 55.75 mm 2.195 in

HT.(max.) 14.86 mm 0.585 in

Window Area 24.410 cm2 4817375 c.mils

Cross Section Area 2.970 cm2 0.460 in2

Path Length 24.270 cm 9.555 in

Volume 72.120 cm3 4.401 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 40 M400040A H400040A S400040A W400040A U400040A

50 77 - - - W400077A -

60 92 M400092A H400092A S400092A W400092A U400092A

75 - - - - - -

90 - - - - - -

125 - - - - - -

147 - - - - - -

160 - - - - - -

H400092AU400092AW400092AM400092AS400092A

Page 104: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

102 POWDER CORES

POW

DER C

ORES

0 300 600 900 1200 1500 1800 2100 300027002400

120

110

100

90

80

70

60

50

40

30

20

10

4.000 2.250 0.650 (inch) 101.60 57.15 16.51 (mm)

M400112A

4.000"

2.250"

0.650"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

8 47 0.00801 109.55 24.46

9 54 0.01161 108.83 23.74

10 63 0.01708 108.21 23.12

11 72 0.02459 107.63 22.54

12 81 0.03489 107.13 22.04

13 91 0.04943 106.67 21.58

14 103 0.07060 106.30 21.21

15 117 0.10061 105.93 20.84

16 132 0.14406 105.61 20.52

17 147 0.20176 105.32 20.23

18 167 0.28858 105.06 19.97

19 187 0.40817 104.83 19.74

20 210 0.57818 104.63 19.54

21 239 0.82994 104.44 19.35

22 268 1.17439 104.27 19.1

- - - - -

O.D.(max.) 102.87 mm 4.050 in

I.D.(min.) 55.75 mm 2.195 in

HT.(max.) 17.8 mm 0.750 in

Window Area 24.410 cm2 4817375 c.mils

Cross Section Area 3.520 cm2 0.546in2

Path Length 24.270 cm 9.555 in

Volume 85.500 cm3 5.218 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 47 M400047A H400047A S400047A W400047A U400047A

50 90 - - - W400090A -

60 112 M400112A H400112A S400112A W400112A U400112A

75 - - - - - -

90 - - - - - -

125 - - - - - -

147 - - - - - -

160 - - - - - -

H400112AU400112AW400112AM400112AS400112A

Page 105: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 103

Stand

ard

MPC

Toroida

l Series

0

1

20

40

60

80

100

120

140

160

180

200

220

240

260

280

200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000

5.218 3.094 0.800 (inch) 132.54 78.58 20.32 (mm)

M522124A

5.218"

3.094"

0.800"

AL value vs. DC Bias

AL (n

H/N

2 )

NI(AT)

AWG AWGTurns TurnsRdc(Ω) Rdc(Ω)

OD(mm) OD(mm)HT(mm) HT(mm)

Part Number Part NumberWound Core Dimension Wound Core Dimension

Winding Information Winding Information

8

9

10

11 N/A

12

13

14

15

16

17

18

19 N/A

20

21

22

O.D.(max.) 133.96 mm 5.274 in

I.D.(min.) 77.04 mm 3.033 in

HT.(max.) 21.72 mm 0.855 in

Window Area 46.61 cm2 9199089 c.mils

Cross Section Area 5.34 cm2 0.828 in2

Path Length 32.42 cm 12.77 in

Volume 173.12 cm3 10.566 in3

Core Dimensions (after Finish)

Physical Constant

Core Information

Perm.(μ)

AL value(nH/N2)

Part Number

MPP Sendust Power Flux Ultra FluxHigh Flux

26 54 M522054A H522054A S522054A W522054A U522054A

50 - - - - - -

60 112 M522124A H522124A S522124A W522124A U522124A

75 - - - - - -

90 - - - - - -

125 259 M522259A H522259A S522259A - U522259A

147 - - - - - -

160 - - - - - -

H522259AU522259AM522259AS522259A

H522124AU522124AW522124AM522124AS522124A

Page 106: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

Special Core Data

Page 107: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

5Special Core Data

Page 108: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

106 POWDER CORES

POW

DER C

ORES

Special Height Up/Down Core Series

We, Dongbu can supply various special height core series

depending on our customer request.

Actually, a lot of customers would like to get increasing height cores

or decreasing height cores in order to design their drawing.

It is very useful in the case of replacing two pieces core by one cores

which is the increasing height core.

As increasing height, customer can get low-cost cores and

also we can get much profit than common cores.

If you need more information on it, please feel free to contact us.

■Introduction

0.140"

(3.56mm x 1.78mm x 1.52mm)

0.070"

0.060"Increase

H.T.(mm)

decrease

H.T.(mm)

Page 109: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 107

Specia

l Core D

ata

Special Sendust 90μ Core Series

OD

ID

HT

■Features1. Low Core Losses

2. Excellent DC - Bias Characteristics

3. Excellent Frequency Characteristics

4. Low Price

Part Number Permeability(μ)

AL-Value(nH/N2)

MagneticPath length

(cm)

Cross SectionArea(cm2)

OD(max.)(mm)

ID(min.)(mm)

HT(max.)(mm)

Core Dimension

S041055A 90 55 2.285 0.102 10.15 5.00 4.20

S054060A 90 60 3.200 0.171 13.72 7.32 5.40

S070070A 90 70 4.205 0.281 17.90 9.70 7.10

S082070A 90 70 5.095 0.278 20.75 12.40 6.90

S082120A 90 120 5.095 0.484 20.75 12.40 12.30

S084070A 90 70 5.671 0.358 21.40 11.70 7.60

S109090A 90 90 6.307 0.509 27.70 14.00 7.60

S109150A 90 150 6.307 0.850 27.70 14.00 12.70

S136146A 90 146 8.105 1.055 34.59 18.64 13.50

S136183A 90 183 8.105 1.328 34.59 18.64 17.00

■ Above mentioned core dimensions are for nominal bare core before coating

■ Cores are supplied with 0.04mm~0.06mm nominal epoxy coating.

Finish coating material : Epoxy(UL94V-0), All core colors are black

■ Inductance tolerance are 8% from nominal inductance

■ In addition to cores listed above, customer specifications are also available

Page 110: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

108 POWDER CORES

POW

DER C

ORES

Dongbu Special Shape Core Data

■Features1. Large energy storage capacity

2. Low core losses at elevated frequency

3. Exellent DC-Bias inductance features

4. Good temperature stability

■Applications1. Choke coils for large current

2. Flyback transformers

3. PFC reactors

4. High inductance choke coils

5.PV, UPS

6.EV, Telecom

HighFlux

PowerFlux

Sendust

Special ShapeCore Series

Page 111: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 109

Specia

l Core D

ata

EE Core series

■Identification of EE Core Series

■Dimension specification of EE Core series

S 43 21 150 C ee

■Core shape : EE means EE type cores

■perm.(u) : permeability code(B:26, J:40, C:60, E:90)

■Inductance : apparent inductance [mH] factor for 1000turns

■Size : horizontal axis of cores [mm]

■Size : vertical axis of cores [mm]

■material : material code(W, H, S, U)

Where, ·S : Sendust Material [Fe / Al / Si] ·43 : 43mm ·21 : 21mm ·150 : 150mH/N2 at 1000turns

[Fig.1] mechanical out lines [unit : mm] about EE core series

[Table 2] shows out dimension specification of EE core series

PathLength(cm)

P/NDimensions [mm] AL value(nH/N2)±12%

A E (min) 26μC 60μB F 40μD (min) M (min) 90μ

CrosssectionArea(cm2)

26

39

56

88

56

80

116

162

130

103

0.23

0.39

0.84

1.52

1.28

3.5

3.5

5.4

3.68

3.89

4.01

4.85

6.94

7.75

9.84

9.84

12.3

14.7

13.7

18.5

4.7

6.3

7.9

7.9

9.5

9.5

10.3

12.1

16.9

19.8

13.9

18.8

25.3

28.3

30.4

30.4

37.5

44.2

52.6

59.3

5.5

6.2

9.6

10.4

15

15

18.5

22.2

17.8

28.1

19.3

25.1

34.5

40.9

42.8

42.8

54.9

65.1

72.4

80

8.1

9.6

14.1

16.5

21.1

21.1

27.6

32.5

27.9

38.1

4.8

6.5

9.3

12.5

10.8

15.4

20.6

27

19

19.8

4.8

6.1

9.3

12.5

11.7

11.7

16.8

19.7

19.1

19.8

1908 EE

2510 EE

3515 EE

4117 EE

4321 EE

4321 EE

5528 EE

6533 EE

7228 EE

8038 EE

35

52

75

119

76

108

157

230

173

145

48

70

102

163

105

150

219

300

236

190

69

100

146

234

151

217

-

-

-

-

B

D

A F E

L

M

C

Page 112: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

110 POWDER CORES

POW

DER C

ORES

EQ Core series

■Identification of EQ Core Series

■Dimension specification of EQ Core series

H 26 19 165 C eQ

■Core shape : EQ means EQ type cores

■perm.(u) : permeability code(B:26, J:40, C:60)

■Inductance : apparent inductance [mH] factor for 1000turns

■Size : horizontal axis of cores [mm]

■Size : vertical axis of cores [mm]

■material : material code(W, H, S, U)

Where, ·H : High Flux Material [Fe / Ni] ·26 : 26mm ·19 : 19mm ·165 : 165mH/N2 at 1000turns

[Fig.1] mechanical out lines [unit : mm] about EQ core series

[Table 2] shows out dimension specification of EQ core series

PathLength(cm)

P/NDimensions [mm] AL value(nH/N2)±12%

A E 26μC 60μB F 40μD (min)

CrosssectionArea(cm2)

44

37

72

61

83

62

62

57

77

105

0.608

0.608

1.198

1.198

1.523

1.523

1.808

1.997

3.141

5.309

4.52

5.32

5.47

6.39

6.03

7.99

9.47

11.52

13.34

16.53

18

18

22.6

22.6

27.6

27.6

32

36.5

44

57.2

8.8

8.8

12

12

13.5

13.5

14.4

14.9

20

26

20.5

20.5

26.5

26.5

32

32

36

41.5

50

65

14

14

19

19

22

22

26

28

32

42

8.1

10.1

10.1

12.4

10.3

15.2

17.4

19.9

25

30

5.7

7.7

6.8

9.1

6.6

11.5

13.4

15.4

19.5

22.8

2014 EQ

2014 EQ

2619 EQ

2619 EQ

3222 EQ

3222 EQ

3626 EQ

4128 EQ

5032 EQ

6542 EQ

68

57

110

94

127

96

96

87

118

161

101

86

165

141

190

144

144

131

178

242

A

B C F

ΦD

ΦE

Page 113: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 111

Specia

l Core D

ata

Block Core series

■Identification of Block Core Series

■Dimension specification of Block Core series[Fig.1] mechanical out lines [unit : mm] about Block core series

w 80 30 20 C

■perm.(u) : permeability code(B:26, J:40, C:60 E:90)

■Size : height of cores [mm]

■Size : horizontal axis of cores [mm]

■Size : vertical axis of cores [mm]

■material : material code(W, H, S, U)

Where, ·w : Power Flux Material [Fe / Si] ·80 : 80mm ·30 : 30mm ·20 : 20mm ·C : permeability 60

[Table 2] shows out dimension specification of Block core series

PathLength(cm)

P/NDimensions [mm] AL value(nH/N2)±12%

A 26μC 60μB 40μ 90μ

CrosssectionArea(cm2)

95

130

79

107

67

91

73

99

58

78

64

86

4.5

6

4.5

6

4.5

6

6

8

4.5

6

6

8

18.71

18.28

22.71

22.28

26.71

26.28

26.71

26.28

30.71

30.28

30.71

30.28

50.5

50.5

60.5

60.5

70.5

70.5

70.5

70.5

80.5

80.5

80.5

80.5

30.3

30.3

30.3

30.3

30.3

30.3

40.3

40.3

30.3

30.3

40.3

40.3

15

20

15

20

15

20

15

20

15

20

15

20

503015

503020

603015

603020

703015

703020

704015

704020

803015

803020

804015

804020

121

165

100

135

85

115

113

153

74

100

98

133

181

247

149

203

127

172

169

230

110

149

147

199

272

371

224

305

191

258

254

344

166

224

221

299

A

B

C

Page 114: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

112 POWDER CORES

POW

DER C

ORES

UU Core series

■Identification of UU Core Series

■Dimension specification of UU Core series

S 55 28 108 C UU

■Core shape : UU means UU type cores

■perm.(u) : permeability code(B:26, J:40, C:60, E:90)

■Inductance : apparent inductance [mH] factor for 1000turns

■Size : horizontal axis of cores [mm]

■Size : vertical axis of cores [mm]

■material : material code(W, H, S, U)

Where, ·S : Sendust Material [Fe / Al / Si] ·55 : 55mm ·28 : 28mm ·108 : 108mH/N2 at 1000turns

[Fig.1] mechanical out lines [unit : mm] about UU core series

PathLength(cm)

P/NDimensions [mm] AL value(nH/N2)±12%

A E 26μC 60μB 40μD L 90μ

CrosssectionArea(cm2)

49

38

47

42

41

43

82

49

1

1.01

2.43

2.7

2.5

2.9

7.7

3.54

6.65

8.51

16.87

21

19.94

21.96

30.71

23.75

8.3

8.4

10.5

10

12.5

13.9

22

15.4

14.2

23.9

33.9

44.2

40.1

44.6

35

49.3

2.8

2.8

17

22.2

20

21.7

42.5

22.7

31.2

40.6

54.9

65.1

65.1

72.4

79

80

11.2

11.2

27.6

32.5

32.5

35.6

65

38.1

12.1

12.1

23.2

27

20

20.9

35

23

3111 UU

4111 UU

5528 UU

6533 UU

6533 UU

7236 UU

7965 UU

8038 UU

75

60

72

64

63

66

126

75

113

90

108

96

94

99

189

112

170

134

163

145

142

149

283

268

[Table 2] shows out dimension specification of UU core series

B

L

EA

D

C

Page 115: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 113

Specia

l Core D

ata

Cylinder Core series

■Identification of Cylinder Core Series

■Dimension specification of Cylinder Core series

w 30 30 C Cd

■Core shape : CD means Cylinder type cores

■perm.(u) : permeability code(B:26, J:40, C:60)

■Size : height of cores [mm]

■Size : diameter of cores [mm]

■material : material code(W, H, S, U)

Where, ·w : Power Flux Material [Fe / Si] ·30 : 30mm ·30 : 30mm ·C : permeability 60

[Fig.1] mechanical out lines [unit : mm] about Cylinder core series

[Table 2] shows out dimension specification of Cylinder Core series

Dimensions [mm]P/N

A B

CrosssectionArea(cm2)

2430

2625

3030

5625

7838

8430

10420

24

26

30

56

78

84

104

30

25

30

25

38

38

20

4.51

5.31

7.07

24.36

47.78

55.42

84.95

ΦOD

ΦOD

HT

HT

Page 116: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

CPI Core Data

Page 117: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

5CPI Core Data

Page 118: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

116 POWDER CORES

POW

DER C

ORES

CDR series

■Identification of CPI Core CDR Series

■Dimension specification of CPI Core CDR Series

Cdr 65 65 15

■Size : height of cores [mm]

■Size : horizontal axis of cores [mm]

■Size : vertical axis of cores [mm]

■Core shape : CDR means “Octagon” type cores

Where, ·Cdr : Octagon Shape ·65 : 6.5mm ·65 : 6.5mm ·15 : 1.5mm

[Fig.1] mechanical out lines [unit : mm] about CDR core series

[Table 2] shows out dimension specification of CDR core series [Size D, E, H : Customized]

Permeability(ui)Model

Size(mm)

Width(A) Height(D)Length(B)

CDR303009

CDR303010

CDR404009

CDR404010

CDR404015

CDR656510

CDR656515

CDR656518

CDR656530

CDR808030

CDR808040

2.9(±0.1)

2.9(±0.1)

3.9(±0.1)

3.9(±0.1)

3.9(±0.1)

6.5(±0.1)

6.5(±0.1)

6.5(±0.1)

6.5(±0.1)

8.0(±0.1)

8.0(±0.1)

2.9(±0.1)

2.9(±0.1)

3.9(±0.1)

3.9(±0.1)

3.9(±0.1)

6.5(±0.1)

6.5(±0.1)

6.5(±0.1)

6.5(±0.1)

8.0(±0.1)

8.0(±0.1)

0.9(±0.05)

1.0(±0.05)

0.9(±0.05)

1.0(±0.05)

1.5(±0.05)

1.05(±0.05)

1.40(±0.05)

1.65(±0.05)

2.85(±0.05)

2.80(±0.05)

3.80(±0.05)

45

45

45

45

45

45

45

45

45

45

45

B

C

A

D

H

E

F G

Page 119: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 117

CPI C

ore Da

ta

DR series

■Identification of CPI Core DR Series

■Dimension specification of CPI Core DR Series

dr 13 40

■Size : height of cores [mm]

■Size : diameter of cores [mm]

■Core shape : DR means “Drum” type cores

Where, ·dr : Drum Shape ·13 : Φ13mm ·40 : 4.0mm

[Fig.1] mechanical out lines [unit : mm] about DR core series

[Table 2] shows out dimension specification of DR core series [Size D, E, F : Customized]

Permeability(ui)Model

Size(mm)

Outside Diameter(A) Height(D)Inside

Diameter(E)

DR4010

DR5010

DR6010

DR6012

DR6015

DR8040

DR1040

DR1340

4.0(±0.1)

4.8(±0.1)

6.2(±0.1)

6.2(±0.1)

6.2(±0.1)

8.0(±0.1)

10.0(±0.1)

12.5(±0.1)

1.5(±0.1)

2.3(±0.1)

3.0(±0.1)

3.0(±0.1)

3.0(±0.1)

3.0(±0.1)

3.5(±0.1)

3.3(±0.1)

0.82(±0.05)

1.05(±0.05)

0.90(±0.05)

1.05(±0.05)

1.35(±0.05)

3.75(±0.05)

3.70(±0.05)

3.70(±0.05)

45

45

45

45

45

45

45

45

A(I.D.)

E(I.D.)

D

B C

E A

F

Page 120: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

118 POWDER CORES

POW

DER C

ORES

T series

■Identification of CPI Core T Series

■Dimension specification of CPI Core T Series

T 60 20

■Size : height of cores [mm]

■Size : horizontal axis of cores [mm]

■Core shape : T means “T” type cores

Where, ·T : T Shape ·60 : 6.0mm ·20 : 2.0mm

[Fig.1] mechanical out lines [unit : mm] about T core series

[Table 2] shows out dimension specification of T core series [Size F, G, H : Customized]

Permeability(ui)Model

Size(mm)

Width(A) Height(H)Length(B)

T6525

T7525

6.31(±0.1)

7.75(±0.1)

6.51(±0.1)

7.75(±0.1)

2.5(±0.1)

2.5(±0.1)

50

50

C

D

B

AH

E

F

G

Page 121: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

WWW.DOngbUEM.COM 119

CPI C

ore Da

ta

Page 122: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

■MEMO

Page 123: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

■MEMO

Page 124: Powder Cores - Butronik Electronic...Each alloy powder cores of Dongbu is coated with epoxy resin and marked with a part number. Sometimes, in the case of customer’s special requirement,

dongbuem.com

Headquarter / Factory256, byeolmang-ro, Danwon-gu, Ansan-si,

gyeonggi-do, S.Korea (15607) TEL: +82.31.489.2221 E-MAIL: [email protected]

深圳分公司广东省深圳市南山区前海路3101-90号振业国际商务中心1803B室

Rm.1803B, ZhenyeInternational Business Center, No.3101-90, QianHai Road, NanShan District, Shenzhen, Guangdong, China

T:0755-81731126 (Rola) T:0755-21534932 (Wind)

香港物流中心 公司:得利通物流有限公司 地址:新界元朗公奄路白沙村DD119段, 地段1164

WORLD BILLION LOGISTICS LTDL1264 SA, DD119, Pak Sha Tsuen, Yuen Long, NT

T:0755-86207052 (Vicky) T:0755-81731069 (Judy)

东部电子材料有限公司