This seems like it should have been asked before, but I can't find anything. I've got a large 12v DC motor (11A startup surge, 7a running current) that I'm PWM-ing at ~20khz through a mosfet.
I, naturally, need a flyback diode to keep the highly inductive motor from doing naughty things with my mosfet.
Up to now, I've been using the CDBA540-HF (5A) as my kickback snubber, and I've never had any problems with it.
I've heard that you should match your motor's max operating current with the diode current. However, this diode has a peak current of 125A. Does this mean it can handle my motor easily?