The CAP CER 680PF 4KV X7R 1808 is a high-voltage ceramic capacitor with specific characteristics. It has a capacitance of 680 pF and tolerates voltages up to 4000V, also known as 4kV. The designation "X7R" refers to its temperature coefficient and operating characteristics. This component measures 1808 (also expressed in metric units as 4520) and is designed for various applications requiring high-voltage insulation and precise capacitance values.