Film capacitors are electronic components that store electrical energy using a thin plastic film as the dielectric material. They are known for their stability, low loss, and ability to handle high voltages. Commonly used in various applications, they can be found in audio equipment, power supplies, and motor drives. These capacitors come in different types, including polyester, polypropylene, and polystyrene, each offering unique characteristics suited for specific uses. Their long lifespan and reliability make them a popular choice in both consumer electronics and industrial applications, ensuring efficient performance in circuits.