The CAP CER 22PF 1KV C0G/NP0 1808 is a specific type of ceramic capacitor. It has a capacitance value of 22 pF with ±2 tolerance and a voltage rating of 1000V (1kV). This particular component belongs to the C0G (NP0) classification, which indicates its temperature-stable characteristics. The part number also includes the metric size designation, "1808," signifying that it has an 1808 case size equivalent to 4520 in the metric system.