[sdiy] SMD Tempco Plea for Help

Tony Clark clark at andrews.edu
Mon Apr 12 23:50:58 CEST 2004


   Hi,

>  I ordered some of the Panasonic 805 surface mount tempco from Digi-Key,
> and finally received them today. For just over $21, I bought 50 1K
> 3300ppm tempcos. I had grand dreams of tempcoing every expo converter
> I've ever built. Forget just VCOs, I'm tempcoing filters, VCAs,
> everything!
> 
> So I open the package, and...
> 
>  Sweet merciful crap, these things are small!

   Heh.

> I'm thinking I might use
> wire-wrapping wire to solder to the terminals on the tempco... good
> idea? Better suggestions?

   One of the best ways to put 1 or 2 SMT parts down is to just solder 
one end to an existing pad (that you want it connected to) and then tack 
a wire onto the other end and route that where-ever you want.
   If you are using a PCB with existing traces, you can usually just 
solder one end directly to a trace (even if you have to scrape off 
soldermask), and then wire as suggested.

   Hope that helps,

   Tony

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