The CAP CER 1PF 250V C0G/NP0 0505 is a specific type of ceramic capacitor. It has a capacitance value of 1 pF and a tolerance of ±0.1pF. This capacitor operates within a voltage range of 250 volts and conforms to the C0G (NP0) specification, which indicates its stable temperature characteristics. The 0505 designation refers to the metric size of 5 x 5 mm.