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Stealth · December 30th, 2013, 13:15

You don't need a fuse for a MOSFET because the time it takes for the fuse to open far outstrips the time it takes for you to destroy your MOSFET if you do in fact have a failure like a short.

Some MOSFETs do come with resettable thermal polyfuses which I've found are only tripped when the rated current is sustained for some time.

December 30th, 2013, 13:15	#2
Stealth Mr. Silencer Trader rating Join Date: Dec 2001 Location: Toronto	You don't need a fuse for a MOSFET because the time it takes for the fuse to open far outstrips the time it takes for you to destroy your MOSFET if you do in fact have a failure like a short. Some MOSFETs do come with resettable thermal polyfuses which I've found are only tripped when the rated current is sustained for some time. Last edited by Stealth; December 30th, 2013 at 14:06..