The CAP CER 1UF 50V X5R 0402 is a type of ceramic capacitor that features a capacitance rating of 1 microfarad. This specific component meets the requirements for a voltage range of 50 volts and has a temperature coefficient of X5R, which indicates its operating characteristics across various temperatures. The component's dimensions are consistent with the metric size designation 0402 (or 1005 in imperial measurements).