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Old November 4th, 2008, 14:25   #12
Kos-Mos
 
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Join Date: Nov 2005
Location: LĂ©vis (QC)
The Trigger Master has thermal shutdown, but it is controlled by the microcontroller, not the FET itself.

Usually, all the limits/rating of any electronic part is listed in the datasheet.

The FETs I am installing as a trigger switch replacement are rated for 110A continuous current and 350A pulsed. They can run from -40 to 175 degC. And they have a built-in diode to prevent EM spikes from burning the FET. Still, I saw some burn by missuse, moisture/water, phisical shock etc.

They are sensitive parts, and they are supposed to heat a little bit. Nothing electric is 100% efficient (yet), so there HAS to been heat generated somewhere.
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