I’m looking to mount SMT pogo pins on a PCB. The connectors will see a maximum working voltage of 120VDC between any two pins, but only when connected to their corresponding female header.
If the female header is live (120VDC) and the pogo pins only experience 120VDC when connected, what guidelines should I follow for clearance and creepage?
I’m confused because I started off by looking at the distance in air and over a surface between pins, but when these pins are live they will be fully insulated from each other (via the female connector).
I guess my question here is: in general, how is clearance and creepage determined for male headers if power is only supplied by the female socket?
Do no rules have to be followed, or do you need to measure pin-to-pin distance through insulator?