Re: CD cap MMC

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

Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>

Hi Kreso,

The peak current for the 940 series 0.15uF 2kV cap you mention is 144 amps 
peak.  The 940 series is not thick metal foil but only thin vacuum 
deposited aluminum that is not good for super high current.

http://www.cde-dot-com/film/9402000.htm

Our favorite 942 series caps (942C20P15K) use full metal foil for 432 amps 
peak.

http://www.cde-dot-com/film/9422000.htm

You want the 942 series 942C20P15K for sure!  Some people have gone with 
the 940 series ok, but sometimes they fail too...  It all depends on how 
your coil is set up.

The chart at:

http://hot-streamer-dot-com/temp/MMCcapSales.gif

Tells how many you need.  I am not sure what your line frequency but if it 
is 60Hz a nice value is 0.214 using a 14 x 2 MMC.


At 11:47 PM 10/7/2003, you wrote:
>Maybe i will ghet CD caps 942C20P15K: 2000volt DC at .15 microfarad what 
>do you reccomend for 15kV 120 mA nst?? I need 25 nF for resonant bud i do 
>not want resonant i destroyed my Maxwell . So whad do you suggest how much 
>cap for a durable MMC really durable i will not push my luck and i wont it 
>to work for long time.
>
>Best Regards
>
>Krešo
>
>P.S. Terry dont kill this post is it-s important