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Replacing old Motorola Zeners

Discussion in 'Sensors and Actuators' started by tryppyr, Dec 12, 2013.

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  1. tryppyr

    tryppyr

    228
    1
    Oct 22, 2013
    I have two types of zeners I need to replace.
    Motorola 02 02 43
    Motorola 02 00 41

    I'm pretty sure the Motorola 02 00 25 is a 10V 1/2w Zener. What are the other two?
     
    Last edited: Dec 12, 2013
  2. shrtrnd

    shrtrnd

    3,821
    519
    Jan 15, 2010
    Sounds like proprietary (in-house) numbering system to me.
     
  3. tryppyr

    tryppyr

    228
    1
    Oct 22, 2013
    Probably so. I think I've come up with a plan, though. I'll check the zeners on other boards and see if I can find one matching the number on the mystery zener, then look it up on the parts list. That ought to give me a clue.
     
  4. shrtrnd

    shrtrnd

    3,821
    519
    Jan 15, 2010
    Or, if you find a good diode, you can set-up a test circuit, and determine the zener
    voltage from that one for each of your unknown diodes.
     
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