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Recent content by jcorb5

  1. jcorb5

    back emf supression w/ diode across solenoid coil.

    Cbarn24050. Thanks for the reply. My posting above was poorly written. the 22 amps is the manufacturers rated value for forward current. (so are the other values) I believe when the coil field of a few thousands volts is collapsing that the 22 amps rating may be exceeded. When the coil field...
  2. jcorb5

    back emf supression w/ diode across solenoid coil.

    Electripete, thanks for the reply. you are correct, the coil typically draws .28 amps (calculated). the diode is connected in parallel to the coil The diode normally is reversed biased when the coil is energized (125 VDC) and then the maximum reverse current is between 25 microamps (junction...
  3. jcorb5

    back emf supression w/ diode across solenoid coil.

    I am looking into the failure (shorting across) of an MR760 diode that was installed in parallel with a solenoid valve to suppress back emf. The solenoid coil is 35.1 watt, 465 ohms, 35.1 watt and 22 Henries. What I am trying to do is find out how to size a diode for this application. The...

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