A film capacitor is an electronic component that stores electrical energy using a thin plastic film as the dielectric material. This type of capacitor is known for its stability, low loss, and ability to handle high voltages, making it suitable for various applications in electronics, such as power supplies and audio equipment. Film capacitors come in different types, including polyester, polypropylene, and polycarbonate, each offering unique characteristics. They are often preferred for their reliability and long lifespan compared to other capacitor types, such as ceramic or electrolytic capacitors, especially in circuits requiring precise timing and filtering.