The CAP CER 1.1PF 500V C0G/NP0 1206 is a specific type of ceramic capacitor. It has a capacitance value of 1.1 picofarads and a tolerance of ±0.1 picofarads. This capacitor operates at a voltage rating of 500 volts and conforms to the C0G/NP0 specification, which indicates its stability over temperature.