The CAP CER 820PF 500V C0G/NP0 2220 is a type of ceramic capacitor with specific characteristics. It has a capacitance value of 820 pF and operates within a voltage range of ±2 500V. This component falls under the classification of C0G/NP0, which is also known as Class I (1B), metric size 2220 (5.75mm x 3.6mm).