i need help plz

Discussion in 'General Electronics Chat' started by toookyo, Feb 8, 2010.

  1. toookyo

    Thread Starter New Member

    Feb 8, 2010
    2
    0
    i want 2 know how to find out the value of diode ziner
    i kow that the resistor is known by the colors , but i need the glass-sealed zener diode and the black or gry colored
    [​IMG]

    [​IMG]
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    You can find the purt number typed on its body.
     
  3. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Like mik3 said, reading the part number from the body is the best way to determine the specification.

    However, if the part number is unreadable, and the part is still good, you may be able to determine it's voltage by passing a known constant current through it in reverse bias.

    For example, a 20mA reverse bias current will give you the breakdown voltage of many Zeners. That would be too much for low-current Zeners.
     
    Last edited: Feb 11, 2010
  4. mik3

    Senior Member

    Feb 4, 2008
    4,846
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    I am not Bertus. :p
     
  5. badbaud

    Member

    Mar 5, 2009
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  6. toookyo

    Thread Starter New Member

    Feb 8, 2010
    2
    0
    thanx 2 u all
    (reading the part number from the body is the best way to determine the specification.
    )
    i tried it by writing them on the net and i didnt get good info.
    i will try the other ways
    thanx very much
     
  7. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    So what is the number?
     
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