Thanks for all the responses. There's not much info here. The lab
manager gave me about 10 feedthru caps to verify the impedance. The
"official" looking tag in the bag says "Zo=50+/-10 ohms". That's it.
No freq, no capacitance. For sure they're feedthru caps, built like
you're typical feedthru cap. I figured, for testing purposes, treat it
like a small section of coax.I'm not even sure what freq they want it
checked at. I'll have to get more details.