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Snubber circuit

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However, it begs the question, why use a diode at all? Wouldn't a resistor that is 4 times the relay coil resistance do the job better?
With a diode you only need a 15 volt transistor. With 4X resistor you need a 60V transistor. (assuming you are driving a relay with a transistor)
 
It was just a quizzical question. I guess you could dispense with diode or resistor and just use a 2,000V transistor. :)

Mike.
 
It was just a quizzical question. I guess you could dispense with diode or resistor and just use a 2,000V transistor.
Assuming the stray capacitance is high enough so the the inductive energy doesn't push the voltage higher than that. :eek:
 
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