The CAP CER 15PF 100V C0G/NP0 0805 is a specific type of ceramic capacitor with a capacitance value of 15 picoFarads and a voltage rating of 100 volts. It has the designation C0G or NP0, which indicates that it belongs to a particular temperature-compensating class of capacitors, also known as Class I. The capacitor's dimensions are specified by its metric size code, 0805, indicating that it is a surface-mount device with a length and width of 0.08 inches (2 mm) and a height of 0.05 inches (1.27 mm).