Ceramic capacitors, often abbreviated as Cer or CC, are a type of electronic component known as fixed capacitors. They consist of two metal plates separated by a ceramic material, which can be an insulating oxide of a metal such as barium titanate. This configuration allows the capacitor to store electric charge and filter unwanted frequencies in electronic circuits. Ceramic capacitors come in various shapes, sizes, and capacitance values, making them widely used in various applications including radio frequency (RF) circuits, decoupling circuits, and filtering networks due to their compact size and relatively low cost compared to other types of capacitors.