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Identify transistor?

Discussion in 'Electronic Repair' started by JR North, Oct 13, 2012.

  1. JR North

    JR North Guest

    Repairing a small circuit. Q1 is a small transister marked 603 9ze.
    I can't find any data on this marking. Help?
    Thanks JR
     
  2. Franc Zabkar

    Franc Zabkar Guest

    It might help if we knew which marking, if any, was the date code. Are
    there similar transistors, and if so, what are their markings? What
    are the date codes in the ICs, if any?

    Are the other components of Japanese or US origin, or somewhere else?
    That might help us narrow down the manufacturer.

    Is it a MOSFET or a BJT? P-channel, N-channel, NPN, PNP?

    What is its function? Is it part of a power supply? Switchmode?
    Linear?

    - Franc Zabkar
     
  3. Kripton

    Kripton Guest

    603 must be the date code
    9ze gives as a result a XC6209 or XC6212 circuit
    which is a sot23-5 1.5V LDO ? can be that ?

    if not please give the exact package it may help.
    --
     

  4. Try looking up a 2SC2603, it's a fairly standard signal transistor. Due to
    it's small size, they abbreviate the number to 603. Fairly common in
    consumer electronics.

    Mark Z.
     

  5. Try looking up a 2SC2603, it's a fairly standard signal transistor. Due to
    it's small size, they abbreviate the number to 603. Fairly common in
    consumer electronics.

    Mark Z.
     
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