The CAP CER 5.1PF 250V C0G/NP0 0402 is a type of ceramic capacitor with a capacitance value of 5.1 pF and a voltage rating of 250V. It has a tolerance of ±0.25pF and adheres to the C0G/NP0 specification, which is designed for temperature-stable applications. The component's dimensions conform to the 0402 (1005 Metric) package size.