The CAP CER 820PF 50V X7R 0603 is a type of ceramic capacitor. It has an capacitance value of 820 pF and operates within a voltage range of ±10% at 50V DC. The X7R designation indicates that this component falls into the X7R dielectric class, which is known for its stable temperature characteristics. This capacitor's dimensions are compatible with the 0603 (1608 Metric) package size, making it suitable for use in compact electronic designs.