blew a 2N3055

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  • eccerr0r
    Solder Sloth
    • Nov 2012
    • 8701
    • USA

    #1

    blew a 2N3055

    I was playing with a 2n3055 as a voltage dropper circuit with a zener diode, and accidentally pumped 4A into the base in a common emitter configuration.

    The transistor instantly blew and shorted all ways around. No smoke (TO-3) but the transistor gets tossed into the round file.

    *sigh* oh well.
  • CapLeaker
    Leaking Member
    • Dec 2014
    • 8132
    • Canada

    #2
    Re: blew a 2N3055

    I played transistor toss with the exact same transistor driving a 120v led on a 12v battery through a transformer and that transistor. It did work!

    Comment

    • sam_sam_sam
      Badcaps Legend
      • Jul 2011
      • 6037
      • USA

      #3
      Re: blew a 2N3055

      Back many years ago I also played with 2n3055 with a LM723CN or something similar to this part number
      I also fried some as well
      Last edited by sam_sam_sam; 08-08-2023, 05:29 PM.

      Comment

      • petehall347
        Badcaps Legend
        • Jan 2015
        • 4426
        • United Kingdom

        #4
        Re: blew a 2N3055

        no great loss

        Comment

        • eccerr0r
          Solder Sloth
          • Nov 2012
          • 8701
          • USA

          #5
          Re: blew a 2N3055

          was surprised how quickly it failed.
          today I had an errant switch mode PSU controller and a poorly thought out turn off for a mosfet, well the mosfet would not turn off and drew 5A through the inductor, heated up with smoke, and survived...

          Comment

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