So much for instinct.  The online calculator posted by Steve throws plent=
y=20
of water on this idea.  Heat sinks it is!

--Lawrence Lile
Electronic Solutions
www.projsolco.com

>
>Unless the PCB is pretty big or you have forced air, I think 5 watts is=20
>unrealistic.
>I start worrying at anything over a watt.
>
>
>--
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=20
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--=20
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