The CAP CER 6800PF 3KV X7R 2220 is a specific type of ceramic capacitor. It has a capacitance value of 6800 picofarads and a voltage rating of 3000 volts, or 3 kilovolts. The "X7R" designation refers to its temperature coefficient characteristics, while the "2220" and "5750 Metric" labels denote its size and measurement system respectively.