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Everything you always wanted to know about thermal paste...


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  • Chriull changed the title to Everything you always wanted to know about thermal paste...
  • 1 month later...
On 6/10/2022 at 5:14 PM, Chriull said:

... for power mosfets mounted with thermal pads on a heatsink as done with EUCs.

TLDR: Don't use it!

An update since @RagingGrandpajust posted a link to @EcoDrift's teardown of the V12HT in 


Some of the manufacturer application notes imply that the use of a minimal amount of thermal paste with thermal pads can improve the thermal conductivity a little bit.

This pictures of the V12HT can be taken as perfect example of thermal paste dosage!


For thermal paste dosage with some hard insulator like mica, kapton, aluminium oxide ceramic plates it would be a little too less, as not the whole surface is covered, but for thermal pads it's really lovely! As used here in case it does not help it for sure will not make it worse!

Edit: PS: Still better to use no thermal paste than put a huge blob as unfortionately shown in many assembly video guides... ;(

Edited by Chriull
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