Ceramic capacitors are a type of capacitor that utilize ceramic materials as their dielectric, providing a wide range of applications due to their compact size, stability over temperature, and relatively low cost. They are commonly used in electronic circuits to filter out unwanted frequencies, regulate voltage levels, and suppress electrical noise. Ceramic capacitors come in various shapes and sizes, including surface mount devices (SMDs), through-hole components, and radial leaded types, making them suitable for a variety of applications across different industries.