The specified component is a ceramic capacitor with the designation CAP CER 0.3PF 50V C0G/NP0 0402. It features a capacitance of 0.3 pF and has a tolerance of ±0.5pF, along with a voltage rating of 50V. This capacitor adheres to the C0G (NP0) specification and is available in a metric size of 1005, which corresponds to an imperial size of 0402.