This is a CAP CER 180PF 1.5KV C0G/NP0 series ceramic capacitor with the following specifications: - Capacitance value: 180 pF - Tolerance: ±2% - Voltage rating: 1500V (1.5kV) - Case size: 1808, also known as 4520 metric - Dielectric type: C0G, which is equivalent to NP0