The part number CAP CER 270PF 200V C0G/NP0 0805 refers to a specific ceramic capacitor. This component has a capacitance value of 270 picofarads and operates within a voltage range of 200 volts. It is classified as a C0G or NP0 type, which indicates its temperature stability characteristics. The device's physical dimensions are specified by the reference number 0805, also known as 2012 in metric measurements.