A ceramic capacitor with the part number CAP CER 22PF 2.5KV C0G/NP0 1812 has been identified. The component features a capacitance of 22 pF and an operating voltage rating of 2500V, classified as 2.5kV. It is constructed from C0G/NP0 ceramic material, specifically designated as type (1B), in the 1812 package size which is equivalent to metric size 4532.