The CAP CER 9PF 50V C0G/NP0 0402 is a specific type of ceramic capacitor with the following characteristics: it has a capacitance value of 9 pF, tolerance of ±0.5pF, and operates at a voltage rating of 50V. It follows the C0G/NP0 dielectric material specification and comes in a 0402 (1005 metric) package size.