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Odd Metal Film Resistor

Discussion in 'Electronic Components' started by Jw, Jun 28, 2004.

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  1. Jw

    Jw Guest

    I have here a strange metal film resistor - red red red gold white.
    According to all the online references I've found, that combination does
    not exist. Now, I know it's a 2.2k resistor (I purchased it) and I'm
    assuming the gold is the tolerance, so can anyone tell me what the white
    band indicates?

  2. Maybe a fusible resistor, the white band gives the power rating.

  3. Could just indicate the RH end of the resistor, especially if it's a
    different width than the other bands and over the end cap.

    Best regards,
    Spehro Pefhany
  4. Guest

    Guest Guest

    I was under the impression that the fifth band was a reliability or
    failure -
    rate indication.
  5. Tim Wescott

    Tim Wescott Guest

    Thats what my ARRL handbook says, but if I extrapolate from their
    numbers (which only go to yellow) it would indicate a 1 PPB (that's
    0.001 PPM) change per 1000 hours of service. It either means something
    else in this case, or the coding doesn't extrapolate.
  6. Mark Zenier

    Mark Zenier Guest

    _Reference Data for (Radio) Engineers_ says that white is the indicator
    for a weldable terminal.

    Mark Zenier Washington State resident
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