Ceramic capacitors use ceramic materials with high dielectric constant and low loss as the medium. The silver layer is sprayed on both sides of the ceramic substrate, and then the silver film is fired at high temperature as electrodes to weld the leads. The outer surface is coated with protective enamel or encapsulated with epoxy resin. The capacity is determined by the area and thickness of the ceramic sheet, and the pressure resistance is determined by the thickness of the ceramic.