mosfet substitution question

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Ed B.
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Joined: Wed Sep 24, 2003 1:01 am

mosfet substitution question

Post by Ed B. » Fri Aug 03, 2007 12:28 pm

Hi All,

A substitution question...

Should I be able to substitute an IRF529 power mosfet for an MTP3055 power mosfet ?

They are being used in a low voltage (12 V) & linear operation.

Thanks for any reply.

Ed B.

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Posts: 2050
Joined: Tue Nov 30, 2004 1:01 am
Location: Seattle

Post by philba » Fri Aug 03, 2007 1:11 pm

do you have a datasheet for the IRF529? I didn't see one via google. The best way to do this is compare the datasheets of the two devices. I'd look for similar ratings for Id, Vdss, Vgs, Rds(on), Vgs(th) and so on. You have to be more careful for linear operation (vs switching).

Maybe this is a dumb question but why are you sub-ing? The MTP3055 is available all over the place and reasonably inexpensive.

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