How to detect Transistor Failure

Discussion in 'Electronics Resources' started by OSOO, Mar 14, 2014.

  1. OSOO

    Thread Starter Member

    Feb 19, 2014
    34
    0
    Hi,

    Please I'd like to know how to make a certain transistor is failed or not? , without putting it in a circuit.
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,446
    3,361
    A simple but not conclusive test for BJT is to check for diode function between base and emitter and base and collector using an ohmmeter or DMM with diode test function. Remember to check both directions by reversing the leads of the test meter.

    After you have done that, check for high resistance between collector and emitter in both directions.
     
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