Non-polar types with high voltage AC operation in mind, extended up to 350 volt. This allows them to be used in power supply applications where the ultra low loss and other characteristics revolutionize power supply design and performance.
Please note Black Gate production ceased in 2006 so these capacitors are very hard to get hold of. We are always looking out for stock purchases but it is becoming increasingly hard to buy them.
To see all Black Gate stocks, click HERE
As an alternative check out the Audio Note Kaisei electrolytic capacitors. Click HERE