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Looking for a data sheet on this transistor ? from a ultrasonic cleaner powersupply

Discussion in 'Datasheets, Manuals and Component Identification' started by Natem600, Oct 22, 2014.

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  1. Natem600


    Oct 22, 2014
    Last edited by a moderator: Oct 22, 2014
  2. hevans1944

    hevans1944 Hop - AC8NS

    Jun 21, 2012
    Well, at least the Base and Emitter connections are marked. Do you have any that more or less still work, i.e., the emitter-base and base-collector junctions measure okay? Maybe if you knew whether it was a PNP or NPN bi-polar junction power transistor you could try to find a substitute. Is there a schematic available for the ultrasonic cleaner, or can you trace one out (reverse engineering this is called)? The numbers marked on the device are probably lot numbers or refer to proprietary part numbers assigned to an ordinary commercial part. It may or may not have undergone special testing to pass specifications for its particular application in the ultrasonic cleaner.
    Arouse1973 likes this.
  3. davenn

    davenn Moderator

    Sep 5, 2009
    Hi Natem600
    welcome to Electronics Point :)

    ^^ I agree with this

    and yes, unless you have a schematic or you spend time tracing out the circuit, then there's probably no way to figure out a suitable replacement

  4. Arouse1973

    Arouse1973 Adam

    Dec 18, 2013
    Some ultrasonic cleaners use the now obsolete SJ9089A. It's alternative appears to be an MJ16018. If that's of any help.
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