The CAP CER 820PF 250V X7R 2220 is a specific type of ceramic capacitor. It has the following characteristics: an 820 picofarad capacitance value with a tolerance of ±5%, and it operates at a maximum voltage rating of 250 volts. This component adheres to the X7R dielectric class, which provides certain temperature and voltage stability features. The 2220 (5750 Metric) designation refers to its physical dimensions and mounting type.