The part number is CAP CER 12PF 100V C0G/NP0 0805, a specific type of ceramic capacitor. This component has a capacitance value of 12 pF and operates at a voltage rating of 100 volts. It falls under the C0G or NP0 classification, which indicates its temperature stability and dielectric properties. The 0805 designation refers to its metric size, measuring 2012 in micrometers.