The CAP CER 1UF 6.3V Y5V 0402 is a type of ceramic capacitor with the following specifications: a capacitance value of 1 microfarad, an operating voltage range from -20 to +80 volts, and a DC working voltage of 6.3 volts. It has a metric package size of 0402 (1005), denoted by the Y5V rating.