The CAP CER 1800PF 4KV X7R 2220 is a specific type of ceramic capacitor with the following characteristics: it has a capacitance value of 1800 pF, ±10% tolerance, and can withstand an operating voltage of up to 4000V (4kV). This component is classified as X7R, indicating its temperature coefficient characteristics. It is packaged in the metric size 2220, which corresponds to an industry standard case size.