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Dan,
Ceramic power resistors are meant to get hot - they're designed to
safely develop lots of heat. Just mount them in an unobstructed area so
that they get good air cooling, away from flammable material and they'll
be just fine. If you want to reduce their surface temperature, you can
also cool them using a small blower. However, more exotic Rube Goldberg
fluid cooling or heat-sinking methods are completely unnecessary and may
actually do more harm than good.
Good luck,
Bert
Daniel Kunkel wrote:
I notice those resistors are getting pretty warm with not a lot of run
time. I'd like to slap some heat sinks on them but I'm concerned about
arcing. I've also attempted to cool them down between runs using compressed
air, but that ceramic really hold the heat. I'm not necessarily concerned
about overheating/damage, but more about increasing DC resistance over the
1k ohm.
Is there a better way to beat the heat?
~Dan
Kansas City area
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