Re: wima fkp1 mmc

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Mark Broker by way of Terry Fritz <teslalist-at-qwest-dot-net>" <mbroker-at-thegeekgroup-dot-org>

Jimmy, what value capacitor are you striving for?

The Geek Caps tested at about 8A RMS at 350kHz with a 15C temp rise.  The
current would go up a bit with a lower Fres, and still more with short run 
times.
Here's the CDE spec sheet:  http://www.cornell-dubilier-dot-com/film/9422000.htm

I don't know what frequency they used for Irms or the temperature rise at that
current.

Digging through my email history (trash bin, actually ;)  ), it would seem 
you need
.5uF at 17Arms at 70kHz?  What sort of voltage rating do you require?

Regards,

Mark Broker
Chief Engineer, The Geek Group


1/10/2003 6:19:05 PM, "Tesla list" <tesla-at-pupman-dot-com> wrote:

 >Original poster: "jimmy hynes by way of Terry Fritz <teslalist-at-qwest-dot-net>"
<chunkyboy86-at-yahoo-dot-com>
 >
 >
 >yeah, I know you could series and parrallel more capacitors, but then you
 >end up with a mmc that can withstand more voltage than ever needed. I was
 >thinking it would be cheaper to find capacitors that could stand twice the
 >current instead of buying 4 capacitors with half the current rating. If I
 >was going to make my own capacitor, it would certainly be better this way.
 >Since geek group capacitors are cheaper, I will just make an mmc instead of
 >emmc ;-).