I am referring to this or similar .
Thanks .
I am referring to this or similar .
Thanks .
I haven't used it on emitters but it is probably similar to what comes with Taskled drivers to stick them down when used at certain amps as parts of the back of the circuit board act as heatsinks.
I actually have some that came from Cutter in 20mm star shape and have used it but not for any extreme applications.
I don’t tend to push emitters hard; I most often use Arctic thermal paste from the computer days, but I’ve used the thermal tape made for emitters several times with success.
Arctic Silver is about 8-9 W/(m·K) in X-Y-Z directions. You can get pads cheap (the ones I have are a few cents each for 30mm or 20mm square pads) that are 600 W/(m·K) in X-Y (side to side) and 20 W/(m·K) in Z (up and down). Some pads are up to 1600 W/(m·K). Copper is about 400 W/(m·K).
I haven’t had a chance to measure any improvements though, but if you use screws to hold the star down it is a no brainer. Get the ones without the adhesive side, as this will cost you 5 W/(m·K).
Where do you get those pads at such prices? Is it only in large quantity or also small orders?
Digi-Key part numbers 1168-2092-ND and 1168-2091-ND. These are not the 600’s, got it confused with a different one. They are 400, so same as copper for side to side and twice as effective as AS up and down.