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    Transistor identification

    Hi I am looking for some help trying to identify an NPN transistor. It is marked TCDL 83-92. Please see attached photo. Any help would be appreciated
    Attached Files

    #2
    Re: Transistor identification

    maybe in house number .can you find a parts list for the unit ?

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      #3
      Re: Transistor identification

      Hi Petehall

      no cannot find any information on the unit

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        #4
        Re: Transistor identification

        what is the unit ? are there anymore transistors same number ? if so you could at least work out the pin out .

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          #5
          Re: Transistor identification

          Hi pete hall. It is a led ballast unit for an emergency light. There is another transistor marked the same the pin out is as follows:1

          pin No

          1 Emitter
          2 Collector
          3 base

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            #6
            Re: Transistor identification

            do you have a component tester?

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              #7
              Re: Transistor identification

              Yes I have component tester. Details on the attached photo
              Cheers Adrian
              Attached Files

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                #8
                Re: Transistor identification

                so does the board contain anymore of those transistors - ones that work?

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                  #9
                  Re: Transistor identification

                  Hi
                  yes this is the one that is shown on the component tester
                  Regards
                  Adrian

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                    #10
                    Re: Transistor identification

                    well if you know the spec, what's the problem?

                    or just stick an NPN ZTX seies in there - thoes can handle serious power.

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                      #11
                      Re: Transistor identification

                      I was struggling to find something similar to replace it with.
                      Regards
                      Adrian

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                        #12
                        Re: Transistor identification

                        any idea on the kind of voltage it has to handle?

                        maybe a ztx450 would work - but you need to bend the leads a bit.

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