blocking diodes or not

Discussion in 'Diode Installation' started by windchain, Dec 14, 2009.

  1. windchain

    windchain WindyNation Engineer

    I have a few diodes that look like the blocking diodes you have in your store,
    only they have two small wires coming out of them, a red and a white ones,
    they came out of a old chloride charger,i stripped,
    Are they usable as blocking diodes?

    ps this is my first post on this site and i thank you in advance
  2. windyguru

    windyguru WindyNation Expert

    Hook them up to a 12 volt battery. And see if electricity flow through one end but not the other. If it does, then it is a diode.

    But I have no idea how you will be able to determine the amp rating of it.
  3. windchain

    windchain WindyNation Engineer

    cheers for reply,can they also be tested with a multi meter set on continiuty :?:
    found out that the ones with small wires coming out are thyristor diodes are these
    any use in a wind or solar system :?: ,power to the people :D

    windchain (at the btm of)
  4. TomT

    TomT WindyNation Engineer

    Yes you can check direction of current flow with a continuity tester. If the battery voltage is high enough.
    Thyristor diodes can not be used as blocking diodes. They are bi-directional and conduct either way at a set voltage.

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