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diode forward voltage confusion

Discussion in 'Electronic Basics' started by [email protected], Dec 22, 2005.

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  1. Guest

    Is "forward voltage" and "forward voltage drop" for a diode the same?
    I read where forward voltage is the min voltage to forward bias a diode
    so is this also the voltage drop across the diode? If so does this
    also apply to a diode laser? This is probably a dumb question.
  2. Dan Hollands

    Dan Hollands Guest

    The voltage drop across a diode will vary a small amount with the current
    going thru the diode
    Forward voltage and voltage drop tend to be used interchangeably

    This applies to all types of diodes

    Dan Hollands
    1120 S Creek Dr
    Webster NY 14580
  3. Pooh Bear

    Pooh Bear Guest


    If you're concerned about forward voltage drop consult the manufacturer's
    graph of Vf vs If.

  4. Guest

    Thanks all. That helped a lot.
  5. And very much more so with the junction temperature.
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