All sorts of ways to do this.
If the case is metal, I'd attach the IRF510's directly to the metal case using standard TO220
insulating washers and heat transfer compound. ?The case is the heatsink.
If case is plastic, I'd insulate the IRF510's from the heatsink(s), have the heatsink protrude out the back
where it can catch some airflow and you can easily determine how hot it's getting.
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On Wed, Dec 13, 2017 at 11:10 am, ekelley wrote:
The heatsink needs to be insulated from the case. Probably best to leave
a little space behind it!