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Relating to temperature rise, the flow of heat, or cooling of components

10 votes
3 answers
12k views

Heatsink on underside of PCB

I experimented with adding a heatsink to this bottom side of the PCB with some thermal grease and the results were surprisingly good. The heatsinks get hot under heavy load. … Also I want to use a Sil-pad instead of thermal grease for easier assembly, and because I don't want to risk shorting different copper pours when the solder mask is gone. …
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