building electronics with surface mount technology james jefferson jarvis kb0thn aprs world, llc...
TRANSCRIPT
Building Electronics with Surface Mount Technology
James Jefferson Jarvis KB0THNAPRS World, [email protected]
www.aprsworld.com
Presentation OutlineWhat is Surface Mount Technology?Why is it used?How do I do it?What do I need?
What is Surface Mount Technology?
There are two type of components
Through hole partsUse holes through circuit board that components are soldered in to
Surface mount partsSoldered on top of circuit board
SMT PartsAll kinds of parts are available in surface mount
Integrated circuitsCapacitors, resistors, inductorsLEDsConnectors
Why is it used?SMT is smaller, faster, cheaperMost new and cool products are only available in surface mount packages
Accelerometers smaller than your fingernailComputers on a chipRadios on a chip!
How do I do it?Watch the demonstration and learn
Recommended Soldering Iron
Workable QualityRadio Shack 15 watt soldering iron
Radio Shack P/N 64-2051$9
Only one tip$1
Recommended Soldering Iron
Good QualityWeller WLC100
Jameco P/N 146596$49
ST1 1/16” conical tip$5
Recommended Soldering Iron
Excellent QualityWeller WESD51
Digi-Key P/N WESD51-ND $160
ETS tip$5
Recommended ToolsXcelite 170M side cutters
$6
Small needle nose pliers
Recommended SolderKester No Clean Solder – 28 AWG (tiny)
Digi-Key P/N KE1407-ND$18This is a half pound of 0.015” diameter solder so it will last you a lifetime
Recommended FluxKester #951 Low-Solids, No-Clean, Pen
Digi-Key P/N KE1804-ND$3.70
Rosin, Mildly Activated flux is okay but will leave a big sticky mess on your board
Liquid and aerosol flux remover can be used, but it is nasty
If water soluble flux is used it *MUST* be washed off the board when done
Recommended Desoldering Braid
Techspray Prowick Size #25’ long, 0.055” wideAbout $4
Recommended VicePanavise Jr
Digi-Key P/N 201PV-ND$24
Prototyping BoardsSurfboards!
Available from Digi-KeySpecifications at http://www.capitaladvanced.com/
Where to buy this stuffDigi-Key, Thief River Falls, Minnesota
www.digikey.com1-800-DIGIKEY
Jameco, Belmont, Californiawww.jameco.com1-800-831-4242
Radio Shackwww.radioshack.com
Spark Fun Electronicswww.sparkfun.com1-303-284-0979
Try it yourself…After the meeting we can build a simple circuit board with surface mount partsIt’s a $4 practice board … and if it works you get a free RS-232 TTL converter
It has one 16 pin chip, five capacitors, and a connector