In article ,
says...

I expect you've already researched this but the breed of
extended foil polypropylene capacitors used for snubber duty
is ideal for this duty. The extended foil results in a much
lower series R than with metallised film, and the loss
tangent of polypropylene is less than 1/10th of that of
polyester or polycarbonate.

Have a look at
http://www.wima.com/product.htm
http://www.wima.com/navig/menue/prsu...hcr/forhcr.htm

They're a European outfit but I think Intertechnical Group
inc is a USA stockist.


The Wima capacitors are good stuff. I use them a great deal here
at work.

Jim


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