Ceramic capacitors are a type of capacitor that utilizes ceramic materials in their construction, specifically in the dielectric layer. This design enables them to offer a wide range of applications across various fields due to their unique characteristics and benefits. They are known for their stability under temperature changes, small size, low cost, and robustness against vibrations and shock. Ceramic capacitors also have the capability to filter out unwanted frequencies while allowing desired ones to pass through, making them highly versatile in electronic circuits and designs.