The KC-LINK 1812 is a type of capacitor that falls under the category of ceramic capacitors specifically designed for high-voltage applications. It has a capacitance value of 9.1 nanofarads (NF) and can withstand a DC voltage of up to 650 volts. The C0G designation indicates that it belongs to the Class I, NPO/0603 type, which is known for its stable and consistent dielectric properties. Additionally, the capacitor's tolerance is ±20%, making it suitable for applications where precise capacitance values are required.