RE: Current in capacitors used for MMC ...

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

Original poster: "Lau, Gary" <gary.lau-at-hp-dot-com> 

A couple problems here.

Let's say you are shooting for a .022uF cap.  You would need a string of 
100 2.2uF caps to achieve that.  More than a few.

More to the point, polypropylene film-foil caps simply are not made in a 
2.2uF/2000V size, so what you have is not polypropylene film-foil.

Or is it possible you meant 2.2nF?  That could be polypropylene film-foil, 
but again, you would need quite a large number of them to achieve a useful 
value.

There is no simple way to determine the current rating - you must have a 
manufacturer's part number or data sheet.

Regards, Gary Lau
MA, USA




Original poster: "Rajesh Seenivasan" <rajeshkvs-at-hotmail-dot-com>

I have got few capacitors for MMC caps bank.
The person who sells the caps has no idea about its current ratings.

It is a 2.2uF, 2000V caps, "Box type" capacitor.
Manufacturer : Alcon
Length : 40mm
Height : 20mm
Lead thickness (approx. 1mm)

How do I find out its 'Amp'acity and maximum dV/dt (without connecting the
caps to the circuit) ?