The CAP CER 51PF 250V C0G/NP0 0805 is a type of ceramic capacitor with a capacitance value of 51 picofarads. It has a voltage rating of 250 volts and is classified as C0G, also known as NP0, which indicates that it has low temperature coefficient and high stability. This component is designed in the metric size 0805 (2012 imperial).