asraralam123
Newbie level 1
I have a circuit for an automotive sensor aimed for 24V supply. The circuit itself is well tested for EMC requirements including power line transients and EMC immunity. Usually the requirement is for all the terminal pins to be galvanically isolated from the metal housing. We have but a strange requirement from one of our customers that demands the opposite. They subject our sensors to electrostatic painting and it may be - just may be- that some charge gets induced on one of the terminal pins. They want some high resistance conduction path from the pins to the case-housing to provide as a relief valve for the charge to be grounded in such situation. I already have the Y-caps from case-housing to all the lines. I was thinking of some high resistors in parallel to each of these caps as a charge draining path. but then what effect would it have on the galvanic insulation requirement (>10Meg @ 500V)?