A high-quality ceramic capacitor with the designation CAP CER 12PF 1.5KV C0G/NP0 2220 is being specified. This component has a capacitance of 12 pF and an operating voltage rating of 1500V, or 1.5kV. The C0G/NP0 (1B) type indicates that it falls within the Class I temperature compensation range, while its 2220 case size is equivalent to the metric size 5750.