[sdiy] Tempcos a NoGo

Tom Arnold xyzzy at sysabend.org
Fri Jun 8 20:29:58 CEST 2007


On Fri, Jun 08, 2007 at 08:01:10AM -0600, Ian Fritz wrote:
> At 09:49 PM 6/7/2007, Tom Arnold wrote:
> >Sure.  I think its even niftier to encapsulate them on a DIP8 adapter of
> >course.
> 
> Aren't you worried about self-heating if you do that?  They're only -- what 
> -- .1 W?

I hadnt noticed a problem.  Its important to note that I use the term
encapsulation loosly.  I'm using thermal transfer epoxy to bridge from the
Temco to the transistor pair so its not a large blob covering the whole
thing.  The outline of the parts is readily visible.

It would probably make more sense to use a larger SMD tempco, but they arnt
so readily available.

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