Heatsink for lower power SSR project?

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mxabeles

Joined Apr 25, 2009
257
Hello! I just bought some knock off Fotek 25Amp SSRs. I'm using them to turn on / off 120v AC 20W LED tubes (T5 4'). I will have as many as x8 tubes tied to one SSR, for a total load of 1.3 amps.

Do I need to bother with the beefy heatsink game for a such a comparatively low power game?
 

Ian0

Joined Aug 7, 2020
6,711
Hello! I just bought some knock off Fotek 25Amp SSRs. I'm using them to turn on / off 120v AC 20W LED tubes (T5 4'). I will have as many as x8 tubes tied to one SSR, for a total load of 1.3 amps.

Do I need to bother with the beefy heatsink game for a such a comparatively low power game?
Rule of thumb for any triac-based switching (including SSR). It has to dissipate 1 Watt for each Amp switched.
So 1.3W in your cause.
It will manage that fixed to the case.
 
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