[R-390] Info on Capacitors

[Dave Maples]

All: I have one more question about capacitors, and it's related to the
discussion about metallized film vs. foil-and-film caps.  At least one if
not more than one person on the list indicated that the metallized film caps
should never be used above a small fraction of their rated working voltage.

I read what I could find easily on self-healing, but the difficulty I'm
having is this: These things are sold and used in commercial gear where
failure to meet specs leads to liability lawsuits in a very large hurry.  If
they aren't suitable at more than a fraction of the rated DC working
voltage, how do the cap mfrs. stay in business?

What am I missing here? If it's a dumb question, I'm happy to be called dumb
as long as I learn something.

Thanks,


Dave WB4FUR