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    What is this component?

    Need help identifing components marked CR(n) on an Onan generator control board.

    CR4; CR5; Cr6; CR7 are diodes but, what are CR2 & CR3?

    What kind of diode are they?

    Will pull them to get markings and to test them tomorrow.
    Attached Files
    Last edited by cmj21973; 01-12-2012, 01:01 AM.

    #2
    Re: What is this component?

    I'm guessing its an ultrafast sinterglass avalanche diode.

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      #3
      Re: What is this component?

      Thanks Evil Lurker.

      Pulled both and they are the same. Marked J5552 AKK.

      Web search turn up this:
      http://www.oberst-electronics.de/ll-d.html

      DMM diode test (probe/comp.):
      CR2 (+)/(+) (-)/(-) .505; (+)/(-) (-)/(+) .0L
      CR3 (+)/(+) (-)/(-) .516; (+)/(-) (-)/(+) .0L

      MM Ohms Rx1K (probe/comp.):
      CR2 (+)/(+) (-)/(-) no reading; (+)/(-) (-)/(+) 4
      CR3 (+)/(+) (-)/(-) no reading; (+)/(-) (-)/(+) 4

      I think they test good, right?
      Last edited by cmj21973; 01-12-2012, 05:40 PM.

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        #4
        Re: What is this component?

        1N5552. Military spec.

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