What is the purpose of the peak gate reverse voltage (VGRM) rating of an SCR?

Discussion in 'General Electronics Chat' started by lawcuenca, Jul 22, 2011.

  1. lawcuenca

    Thread Starter New Member

    Jun 15, 2011
    7
    0
    Hi,
    Can anyone please tell me what is the design significance of SCR VGRM?

    Thanks,
    Law
     
  2. #12

    Expert

    Nov 30, 2010
    16,283
    6,795
    VGRM...Volts Gate Reverse Maximum

    This is the voltage measured from the gate to the Kathode. SCR's only work one way, so positive voltage on the gate is good. Negative voltage has a limit. The limit is VGRM. Do not make a design that exceedes the maximum reverse voltage from gate to kathode.
     
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