Good High Frequency Switching Caps - AC Power Supply High Current?

[digi001]

Looking for manufacture of good caps for a Inverter Power Supply Design. Need to find some in the 440VAC-650VAC range 15A-50A.

Searching through Digikey results turn up mostly Film Caps in 3 Categories (Pulse, Motor Run, DC Link).

I should probably rule out Motor Run Caps but anyone have experience using DC Link caps for this type of AC Application?

 

[atripathi]

Try for polypropylene or polycarbonate capacitor.

 

[FvM]

I would mainly look at manufacturers web sites, e.g. EPCOS, Facon SPA, KEMET - The Capacitance Company

By intended application, motor run capacitors aren't made for high frequency currents, respectively very high currents at all. Pulse or DC link fits better, also snubber capcitors. For highest AC currents, GTO capacitors are outstanding.