The CAP CER 390PF 63V C0G/NP0 2225 is a specific type of ceramic capacitor. It has a capacitance value of 390 picofarads with a tolerance of ±5% and operates at a voltage rating of 63 volts. This component features the C0G or NP0 dielectric, which provides stability over temperature changes. The designator "1B" indicates it is made in accordance with military specifications. Additionally, the package size for this capacitor is 2225, also known as metric size 5763.