Ceramic capacitors are a type of capacitor composed of two or more ceramic material plates that are separated by a dielectric material. They have a wide range of applications, from small low-voltage handling capacitors up to high-voltage and high-power handling capacitors. Ceramic capacitors are a type of non-polarized capacitor, meaning they can be used in both AC and DC circuits without any effect on their performance. Ceramic capacitors are typically used for a variety of circuit applications, such as power supply decoupling, snubber circuits, motor start up, bypassing, timing and frequency control, wave shaping, and more. They're also used in RF and microwave circuits, as they can handle high frequencies and high temperatures.