The specified component is a 20pF ceramic capacitor with the designation CAP CER 20PF 50V C0G/NP0 0402. It has a capacitance value of 20 pF and operates within a voltage range of 50V. This particular type of capacitor falls under the classifications C0G and NP0, denoting its ceramic material composition. The component's dimensions are identified as 0402, which is equivalent to the metric size 1005.