The CAP CER 2200PF 1.2KV X7R 1812 is a type of ceramic capacitor with specific characteristics. It has a capacitance value of 2200 pF and tolerance of ±20%, along with a maximum working voltage of 1200V (1.2kV). This component conforms to the X7R classification, indicating its temperature stability and dielectric properties. The designation "1812" refers to the capacitor's metric size, equivalent to the "4532" designation in the imperial system.