The KC-LINK 2220 6.8 NF 1200 VDC C0G is a type of ceramic capacitor with a capacitance value of 6800 pF and a tolerance of ±10%. It has a voltage rating of 1200 VDC (1.2 kV) and is classified as a C0G or NP0 device, which falls under the metric designation 2220 (5750).