[jedsmd]

Originally Posted by MPaulHolmes

http://www.sbelectronics.com/wp-cont...D601-print.pdf

Thanks I have been trying to read up on ring caps on the SBE site. Sounds like they have some real advantages over the aluminum caps. The longer life particularly appeals to me. That is one of the features I want in a controller.

I wrote to them, asking where I can buy it.

I couldn't find that one on a web search but a similar one is about $200 - so not too scarey

700D10896-348 | 700D Series 600V 1000 uF ±10% Metallized Polypropylene Power Ring Film Capacitor | SBE INC - Future Electronics

I'm hoping for relatively short periods of 1500amps, like beating people off the line on the way to the grocery store. 1500amp would have around 3-4kW of waste heat, and as I'm not making it water cooled, you might not want to do that all day. Or make a big cold plate.

I have found it takes about 800 amps to take my truck nicely off the line. 1500 amps will be plenty robust