The CAP CER 1800PF 1.5KV C0G 2225 is a specific type of ceramic capacitor with the following characteristics: capacitance - 1800 pF, tolerance ±2%, and voltage rating - 1500V (1.5kV). It belongs to the C0G or NP0 (1B) class, which is commonly used for applications requiring stability in capacitance over temperature. The component's metric designation is 2225, which corresponds to a specific package size.