A ceramic capacitor with the designation CAP CER 3.9PF 25V C0G/NP0 0402 is specified for use in various applications due to its compact size and stable performance characteristics. It has a capacitance value of 3.9 pF, with an acceptable tolerance range of ±0.25 pF, making it suitable for high-frequency circuitry. The capacitor operates within a maximum voltage rating of 25V, utilizing the C0G (NP0) dielectric material which is known for its low loss and temperature-stable properties. The metric size designation 0402 corresponds to an imperial size of 1005, indicating a small package footprint that can be easily integrated into densely populated printed circuit boards.