Ceramic capacitors are a type of passive electronic component used for filtering, bypassing, and coupling in various circuits. They consist of two conductive metal plates separated by a thin layer of ceramic dielectric material. This unique configuration enables them to store electrical energy efficiently. The primary advantage of ceramic capacitors is their ability to provide high capacitance values while maintaining low leakage currents and minimal temperature coefficients. Additionally, they are relatively inexpensive compared to other types of capacitors, making them a popular choice for many applications.