The ceramic capacitor is the CAP CER 680PF 1KV C0G/NP0 1812. It has a capacitance of 680 pF and operates at ±2, with a voltage rating of 1000V (1kV). This capacitor conforms to the C0G/NP0 designation, which is a type of ceramic material. Its metric size is 4532, corresponding to the 1812 measurement in other units.