High-voltage ceramic chip capacitor is a kind of capacitor based on ceramic materials (BaTiO₃, PbTiO₃, NaNbO₃), which has excellent insulation performance and stable electrical characteristics, and is specially designed for high-voltage transmission lines, substations, disconnectors and other occasions. Because of its high temperature resistance, wear resistance, corrosion resistance and long service life, it can be used as a filter and signal coupler, applied to power systems, electronic equipment, radio frequency applications, medical equipment and so on.