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2SK2475 equivalent

Discussion in 'Electronic Components' started by Walter Harley, Jan 21, 2004.

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  1. I'm looking for an equivalent to the 2SK2475, to repair a blown SMPS. I
    only need 3 or 4 of them. But they don't appear to be made any more.

    This is an N-channel enhancement MOSFET, with TO220F (isolated) body style,
    with pinout G-D-S if you're looking at it from the front. Specs are:
    Ron(typ) = 0R55
    Vth(typ)= 3V
    Qg = 42nC

    I've hunted through the Digikey and Mouser catalogs but didn't find anything
    that was that powerful in an isolated TO220 case style. (I could probably
    use a non-isolated TO220AB or TO262 and a silicon pad if need be; but I
    don't have room for a TO247.) I've also checked the NTE cross reference
    site, to no avail.

    The closest thing I've found is an IRFSL11N50A, in a TO262 package, but it's
    only rated Id(max)=11A. Or the IRFB13N50A, in TO220AB, which is 14A, but
    has a much higher Qg of 81nC. I have no way of knowing whether those
    differences are a problem in this circuit.

    Anybody got any other places to try, or any other ideas for a substitute?
    I'm in the US.

  2. Try
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