The CAP CER 820PF 50V X7R 0402 is a specific type of ceramic capacitor with the following characteristics: It has a capacitance value of 820 picoFarads. Its tolerance is ±10 percent. It operates at a maximum voltage rating of 50 volts. The capacitor's dielectric material is designated as X7R, which typically indicates it can handle high-frequency applications and has moderate loss properties. This particular component is packaged in the 0402 (1005 metric) size.