Alternate zener diode to 1N751

Discussion in 'General Electronics Chat' started by simondavidkelly, Nov 3, 2010.

  1. simondavidkelly

    Thread Starter New Member

    Nov 12, 2009
    8
    0
    Hi All,

    I'm making a 10 second start up delay circuit and I need a 1N751 for the base of one of the transister pair. However, I'm looking on RS and the 1N751 isn't coming up and is not available.

    Does anyone know what the best replacement is for it?

    Cheers

    Si
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    An 1N751 is an 5.1Volts 500mWatt zener.

    Bertus
     
  3. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    A schematic would help.

    5.1V 1N4733A is pretty close, but you'd be better off with the original P/N.
     
  4. simondavidkelly

    Thread Starter New Member

    Nov 12, 2009
    8
    0
    Thanks guys.
     
  5. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    1N4625 - 500mW
    1N4733 - 1W
    MLL5231B - 500mW, very similar to 1N751
    BZX79C5V1 - axial glass package, similar to 1N751.
     
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