What is ripple current rating of this film capacitor?

Hi,
What is the ripple current rating of this film capacitor? (at 50/60 Hz and 20kHz)

MAB MKP 12/400 12UF +-5% 400V AC 30000h.....

Here is its "datasheet"
Attached also is datasheet...none tell the ripple current.
(it doesnt weigh 1Kg)

Attached also is datasheet...none tell the ripple current

Film capacitors don't have a ripple current rating as such; the limit is a dV/dT figure, usually volts per microsecond.

You can calculate the equivalent current in a specific application from that, the capacitor value and the signal frequency or sum of the frequency components.

For example, a present series of similar motor run style MKP have ratings around 15 - 20V per uS.

>google<
I've just found a vintage Siemens data book; see page 393 - the MKP motor caps in that are rated 10V/uS.


ps. Similar MKP motor caps, brand new, cost a lot less than that ebay one!

Film capacitors don't have a ripple current rating as such; the limit is a dV/dT figure, usually volts per microsecond.

Click to expand...

Thanks, it'll be used in this converter attached, in LTspice
Its 30Arms of ripple current, at 20khz, but the highest V/us is about 3v/us, so it will be OK?
I thought the equivalent ripple current was VAC/Xc = 400/Xc

Xc for 12uF at 50Hz

...gives 1.5A.....so thats well below 30A, and i would have thought bad news for us?