The part number CAP CER 1.9PF 50V NP0 0805 corresponds to a specific ceramic capacitor with a capacitance of 1.9 pF, ±0.5pF tolerance and a working voltage of 50V. It is designed in accordance with the NP0 or C0G dielectric material standards and has an 0805 metric case size, meeting requirements for applications specified in the 2012 Metric standard.