The CAP CER 220PF 630V C0G/NP0 1808 is a specific type of ceramic capacitor. It has a capacitance value of 220 pF and an operating voltage rating of 630V. The C0G designation refers to its temperature stability, and NP0 indicates that it is a type of ceramic material known for its low loss characteristics. This component comes in the compact 1808 metric package size.