Re: Hello from new member w 2465A issues

Ed Breya

Those paper AC line X-caps have been the subject of much discussion here and on the hpagilent group. They are the ones potted in amber colored epoxy, usually WIMA or RIFA brand. The bottom line is that they should be eliminated whenever encountered - even if not already failed - and replaced by proper X-rated plastic-dielectric caps. This is especially important in high line voltage (~240V) countries, where the caps are operating near their limit.

These are also used inside of some packaged line filter assemblies, and known to have caused internal failures there.


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