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Diode Identification

Discussion in 'Electronic Repair' started by [email protected], Aug 30, 2006.

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  1. Guest

    I have a diode which I can't seem to find any information on. I've
    tried all the usual sites and no-one seems to have any matching part

    Its from a LCD monitor power supply - from the recifier circuit (as far
    as I can tell) - its was connected to a 400V cap which is also blown if
    that helps any.

    On the diode:

    The logo is a wavy F in a circle.The only company I can find which has
    a similiar logo is frontier electronics, but they dont make diodes.

    Any info would be appreciated.
  2. Guest

    After some more searching - I found another frontier electronics
    company ( which which seems to make the below model
  3. Tech Data

    Tech Data Guest

    Industrial rectifier by Fairchild. Crosses to an NTE5806, 600PRV-3amp
  4. Eeyore

    Eeyore Guest

    I'd guess it'll be a fast recovery diode ( maybe 2 amps ? ) with 600V rating.

  5. If that was a 400 volt electrolytic capacitor, and the diode is
    "small", that likely places the diode on the line-voltage side of the
    power supply. That makes things a lot easier. It doesnt have to be
    particularly fast. Just able to handle 2 times 1.414 times the line
    voltage. So a plain old 1N4007 should work fine.

    If it was like a 0.05uF 400 volt capacitor, and the diode is "bigger",
    like a typical 3-amp diode, then it's more likely on the high-frequency
    side of the PS. Then you'll need a faster diode. There are tons of
    them around, check out the 1N51xx line.
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