How to compare reverse recovery time between diodes in different test conditions?

Discussion in 'General Electronics Chat' started by NicksonYap, Jan 13, 2013.

  1. NicksonYap

    Thread Starter New Member

    Jan 13, 2013
    I think I put this thread in the wrong category...


    Wassup, newbie here :D
    This looks like a very nice forum! I've checked on some of the lessons and they're really informative! :D


    If I were to compare the trr between 1N4148, UF5408, 1N3595.
    I'm not specifically trying to compare those two diodes, but just as an example.
    I chose those because they seem to have very different test conditions.

    1N4148 (…
    Test condition:
    when switched from IF = 10 mA to
    IR = 60 mA; RL = 100 Ω;
    measured at IR = 1 mA

    Results: 4ns

    UF5408 (…
    Test condition:
    IF = 0.5 A,
    IR = 1.0 A,
    Irr = 0.25 A

    Results: 75ns

    1N3595 (…
    Test condition:
    IF = 10 mA,
    VR = 3.5,
    RL = 1.0 kΩ

    Results: 3µs

    So, perhaps I can get a value that is relative like reverse recovery speed?
    I'm still very new to this...
    Can also explain what is IF, IR, Irr, RL, and VR?

    Thank you very much! :D
    Last edited: Jan 13, 2013
  2. Wendy


    Mar 24, 2008
    You were right, but that is my job. I'll move it for you. :D

    Good luck.
  3. NicksonYap

    Thread Starter New Member

    Jan 13, 2013
    Thanks! :D (and sorry)