mini-melf diode color rings?

Discussion in 'Electronic Repair' started by francesco.messineo@gmail.com, Sep 20, 2006.

  1. Guest

    Hello folks,

    I need to know what kind of diode is an smd, mini-melf case, glass
    diode with black white and green
    color rings on it. I've tried to find a color code on the web but seems
    like these diodes aren't so common.
    Thanks in advance.

    Francesco IS0FKQ
    , Sep 20, 2006
    #1
  2. Eeyore Guest

    wrote:

    > Hello folks,
    >
    > I need to know what kind of diode is an smd, mini-melf case, glass
    > diode with black white and green
    > color rings on it. I've tried to find a color code on the web but seems
    > like these diodes aren't so common.


    Truth is, if you totally don't know what it might be, you'll probably never find
    out.

    Graham
    Eeyore, Sep 21, 2006
    #2
  3. Guest

    Eeyore ha scritto:

    > wrote:
    >
    > > Hello folks,
    > >
    > > I need to know what kind of diode is an smd, mini-melf case, glass
    > > diode with black white and green
    > > color rings on it. I've tried to find a color code on the web but seems
    > > like these diodes aren't so common.

    >
    > Truth is, if you totally don't know what it might be, you'll probably never find
    > out.


    I think it's a zener, I'm pretty sure as I measured other diodes marked
    as ZPDnn on
    the same board and all indeed are zeners.

    Regards
    Francesco IS0FKQ
    , Sep 21, 2006
    #3
  4. Franc Zabkar Guest

    On 21 Sep 2006 02:20:19 -0700, put finger
    to keyboard and composed:

    >
    >Eeyore ha scritto:
    >
    >> wrote:
    >>
    >> > Hello folks,
    >> >
    >> > I need to know what kind of diode is an smd, mini-melf case, glass
    >> > diode with black white and green
    >> > color rings on it. I've tried to find a color code on the web but seems
    >> > like these diodes aren't so common.

    >>
    >> Truth is, if you totally don't know what it might be, you'll probably never find
    >> out.

    >
    >I think it's a zener, I'm pretty sure as I measured other diodes marked
    >as ZPDnn on
    >the same board and all indeed are zeners.
    >
    >Regards
    >Francesco IS0FKQ


    If you can determine the zener voltages of the other diodes, then you
    may be able to make some sense of the colour code.

    - Franc Zabkar
    --
    Please remove one 'i' from my address when replying by email.
    Franc Zabkar, Sep 21, 2006
    #4
  5. Guest

    Franc Zabkar ha scritto:

    > On 21 Sep 2006 02:20:19 -0700, put finger
    > to keyboard and composed:
    >


    > >
    > >I think it's a zener, I'm pretty sure as I measured other diodes marked
    > >as ZPDnn on
    > >the same board and all indeed are zeners.
    > >
    > >Regards
    > >Francesco IS0FKQ

    >
    > If you can determine the zener voltages of the other diodes, then you
    > may be able to make some sense of the colour code.


    That's what I thought, unfortunately seems like there's no relation
    between colors
    and zener voltage. Probably the code just means it's a zener diode.

    Regards

    Francesco IS0FKQ
    , Sep 22, 2006
    #5

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