A 18pF ±1 1000V ceramic capacitor with a capacitance value of 18PF and a voltage rating of 1KV is used in the CAP CER 18PF 1KV C0G/NP0 1812 component. This device has a C0G or NP0 temperature characteristic, making it suitable for applications where stability over temperature is required. The 1812 designation refers to its metric dimensions, equivalent to the 4532 size in other notations.