One more: if you aren't dealing with high voltages or if you don't care that the capacitance changes significantly with voltage, you also might try the newer MLCC ceramic chip capacitors - with many in parallel. It will be more compact and have very low ESL and ESR. Sean On Wed, Feb 10, 2010 at 3:56 AM, Sean Breheny wrote: > 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 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 >> >> -- >> http://www.piclist.com PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist