Cornell Dubilier defibrillator film capacitors are designed specifically to meet the reliability demands of a Class III medical device. These capacitors are housed in round or oval aluminum oil-filled cases; or in a dry, epoxy-filled plastic housing version. Defibrillator capacitors are available in voltage ranges from 800 VDC to 6,000 VDC, delivering in excess of 500 joules at full charge.