Capacitor type?

Discussion in 'General Electronics Chat' started by Gdrumm, Dec 20, 2014.

  1. Gdrumm

    Thread Starter Distinguished Member

    Aug 29, 2008
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    Craftsman 19.2 v Impact wrench, won't turn on.
    Model No. is 315.116020

    When I opened it up, I found a burnt wire on one capacitor mounted in the trigger.
    I fixed that, but still nothing.
    Later, I found a piece half of another capacitor laying in the hollow of the grip.

    It was a hard plastic cap with the numbers 8A4 MIC

    It doesn't look like any that I have.
    The wire ends are very thick, like a high voltage cap from a Microwave Oven.

    Can I bypass these two capacitors?
    I've never seen a trigger with caps before.

    If not, where can I buy one? (I don't see it on Ebay)

    Thanks,
    Gary
     
  2. JWHassler

    Member

    Sep 25, 2013
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  3. Lestraveled

    Well-Known Member

    May 19, 2014
    1,957
    1,215
    The picture looks like a diode and the markings support that it is a 400 volt 8 amp diode. I think JW nailed it.
     
  4. Gdrumm

    Thread Starter Distinguished Member

    Aug 29, 2008
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    Of course it's a Diode.
    I can clearly see that, now that that I see the picture I TOOK....................
    DUH on me.
    What can I say, it was a long day.
    Thanks for helping me through that.

    Gary
     
  5. Gdrumm

    Thread Starter Distinguished Member

    Aug 29, 2008
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    Could I substitute a 1000v, 10Amp?

    Since this one basically broke in half, maybe a higher rated one would last longer?

    Or does a Diode need to be kept at design specs?

    Thanks again,
     
  6. Lestraveled

    Well-Known Member

    May 19, 2014
    1,957
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    Yes, a 1000v, 10 amp diode should work fine.
     
  7. Gdrumm

    Thread Starter Distinguished Member

    Aug 29, 2008
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    Great, Thanks
     
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