The CAP CER 680PF 5KV X7R 2220 is a type of ceramic capacitor. It has a capacitance value of 680 picofarads and can withstand a voltage of ±5 kilovolts, or 5kV. The X7R designation indicates that it belongs to the X7R dielectric class, which provides stable properties across a wide temperature range. This particular capacitor is packaged in a metric case size of 2220 (or 5750), making it suitable for various electronic applications requiring high-voltage and high-frequency performance.