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MOV = metal oxide varistor. They are what make surge suppressor power strips work.
Regardless of what you follow an I/P LC section with, inductive kick back spikes are a potential source of SS diode destruction. "An ounce of prevention is worth a pound of cure."
A link to a modestly price part that will get the job done is provided below.
I presume that each diode in the bridge is paralleled with one of these snubbing caps? Thanks for the link, much appreciated.
Only 1 snubber, connected between the bridge's O/P and ground, is needed. Remember, think cLC filter, where the 1st cap. is tiny .
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