The CAP CER 30PF 50V C0G/NP0 0402 is a specific type of ceramic capacitor. It has a capacitance value of 30 pF with an tolerance of ±2 and can withstand a maximum voltage of 50 volts. This component is classified as a C0G, NP0 (0402) device in metric measurements, corresponding to the 1005 designation.