Look at metal film capacitors. Depending on your application, you
would be concerned with ESR, ESL (inductance), peak and RMS maximum
current ratings, and capacitor life ratings.

Sean


On Tue, Feb 9, 2010 at 4:01 AM, Electron <electron2k4@infinito.it> wrote:
>
> Hi!
> I need some capacitors with very high pulse current capability. Looking
> at digikey catalog, I don't know how to select them (short of checking
> every cap's datasheet), should I look at the ESR rating only? Will this
> suffice? (I will then look at max current and stay within that average
> value of course)
>
> In general, what kind of cap is more suitable for high pulse current?
>
> Thanks!
> Mario & Osvaldo
>
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