MMC cap summary

• To: tesla-at-pupman-dot-com
• Subject: MMC cap summary
• From: Terry Fritz <twftesla-at-uswest-dot-net>
• Date: Sun, 14 May 2000 19:26:45 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Hi All,

	I have been looking over my MMC cap testing and it looks like the WIMA
FKP1 series and the Phillips 376 series are the best.  One could probably
go to 0.1uF or higher values of these caps in the 1600 to 2000 volt range.
The GE 42L series looks good too but I think there is an issue with their
lead connections not being able to take very high current pulses??


WIMA FKP1 1600V 0.01uF 3 amps 375kHz 6.8 Deg. C 
Panasonic 1600V 0.056uF 3 amps 373kHz 3.4 Deg. C 
PHILLIPS 367 KP/MMKP 0.0047uF 2000V 1 amp 375kHz 9.4 Deg. C 
GE 42L32222 0.22uF 2000V 3 amps 370 kHz 1.47 Deg. C 
FCI 0.015uF 6.5kVDC 1 amp 370kHz 5.15 Deg. C 
Sprage 430P 0.22uF 4000VDC 3 amps 370kHz 5.3 Deg. C
Arcotronics "RS" 47nF 1500V 2.5 amps 350kHz 2.2 Deg. C
Phillips 56nF 1600V 3.5 amps 350kHz 1.5 Deg. C

If I calculate the heating for all as a standard 10nF 3amps 370kHz case:

WIMA FKP1 6.8 Deg. C (medium size polypropylene) 
Panasonic 19.04 Deg. C (medium size polypropylene) (old test)
Panasonic 19.74 Deg. C (new test)
PHILLIPS 367 KP/MMKP 39.76 Deg. C (4.7nF version small poly cap)* 
GE 42L32222 3.23 Deg. C (big cap but must be polypropylene) 
FCI 0.015uF 69.52 Deg. C (big cap so probably polyester) 
Sprage 430P 116.6 Deg. C (big cap so probably polyester)
Arcotronics 14.9 Deg. C (Smaller tubular poly caps)
Phillips 6.17 Deg. C (56nF version)

Cheers,

	Terry

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