The part number CAP CER 43PF 63V C0G/NP0 0505 corresponds to a 43 pF ±2 ceramic capacitor with a working voltage of 63 volts. It has a metric size code of 1313, indicating dimensions in millimeters. This component is classified as C0G or NP0 type, which means it exhibits a stable capacitance value over temperature changes and is suitable for applications requiring high accuracy.