The CAP CER 510PF 300V C0G/NP0 1111 is a type of ceramic capacitor with specific characteristics. It has a capacitance value of 510 pF and operates at a voltage rating of 300 volts. This component falls under the C0G or NP0 classification, which indicates its temperature stability and dielectric properties. The part number includes an identification code for easier reference (1B) and dimensions in metric units (2828).