bad IGBT's found again

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  • tvtimmy
    Badcaps Legend
    • Mar 2015
    • 1160
    • usa
    #1

    bad IGBT's found again

    I bought( 5 )RJP63G4 igbt's from a guy in san jose,ca for $10.
    Thought it was a good deal untill the first one I installed fizzled and went short.
    Same for #2. I checked the remaining 3 in diode mode,and nothing!
    Checked them in resistance mode, open! How could they even short out??
    I then robbed one off another board, and replaced q661 that blew with the second one, and it works as it should.
    Tags: None
    • tw2005
      Badcaps Legend
      • Oct 2011
      • 6458
      • Australia
      #2
      Re: bad IGBT's found again

      Originally posted by tvtimmy
      I bought( 5 )RJP63G4 igbt's from a guy in san jose,ca for $10.
      Thought it was a good deal untill the first one I installed fizzled and went short.
      Same for #2. I checked the remaining 3 in diode mode,and nothing!
      Checked them in resistance mode, open! How could they even short out??
      I then robbed one off another board, and replaced q661 that blew with the second one, and it works as it should.
      yeah it's makes it hard and destroys confidence

        Comment

        • tvtimmy
          Badcaps Legend
          • Mar 2015
          • 1160
          • usa
          #3
          Re: bad IGBT's found again

          What would you suggest to use in place of them.
          I had to use a smd one because of the thin 2011 panny.

            Comment

            • tw2005
              Badcaps Legend
              • Oct 2011
              • 6458
              • Australia
              #4
              Re: bad IGBT's found again

              Originally posted by tvtimmy
              What would you suggest to use in place of them.
              I had to use a smd one because of the thin 2011 panny.
              Don't know of anything.

              https://www.encompassparts.com/item/...3G4/Transistor

              http://www.ebay.com.au/itm/RJP63G4-P...QAAOSwxH1T828D

              not sure if that's smd or TO220
              Last edited by tw2005; 09-24-2016, 02:21 AM.

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