The KC-LINK capacitor model 1812 is a specific type of ceramic capacitor designed for high-voltage applications. It has a capacitance value of 7.5 nF and operates at a maximum voltage rating of 500VDC. The C0G or NP0 designation indicates that it is a temperature-stable capacitor with minimal change in capacitance across a wide range of temperatures. This particular model also features high precision, with a tolerance of ±5%, making it suitable for applications where exacting specifications are required.