Fluke 77 Series II- Protection Device of Some Sort Cracked

[RobertM64]

Seen this on other posts regarding the 77, cracked high voltage protection device, but I'm not competent enough to know how to find a replacement.  Some help would be appreciated.  2KV 9527.  Thanks!

[bd139]

That’s actually supposed to be like that. It’s fine

[RobertM64]

That's crazy!  But I've never seen such a straight failure induced crack, so you must be right!  Thanks!

[KMoffett]

https://vetco.net/products/001uf-1kv-2kv-ceramic-spark-gap-capacitor

[EEVblog]

Yep, completely normal, sparkgaps are designed like that.

[coromonadalix]

Yep  totally fine   

[TheMG]

They are very similar to a normal capacitor, but one of the steps in the manufacturing process the literally cut a slice into the top of it.

This exposes the edge of the plates of the capacitor to air, which has a lower breakdown voltage than the ceramic dielectric. The idea is to provide a discharge path in the event of over voltage to avoid damaging the dielectric.