The CAP CER 1.1 PF 300V C0G/NP0 1206 is a specific type of ceramic capacitor. It has a capacitance value of 1.1 pF and a tolerance of ±0.05pF, making it suitable for applications requiring high precision. The component is designed to operate within a voltage range of up to 300V and features the C0G/NP0 material classification, indicating its stability across various temperature ranges.