Q. What is the function of a film capacitor?

Answer

The film capacitor is one of the most popular and widely used capacitors. When a thin plastic film is used as the dielectric, the capacitor is referred to as a "film capacitor." Electronic and electrical equipment utilize it. Other names for this kind of capacitor are film dielectric capacitors, plastic film capacitors, and polymer film capacitors. It is also referred to as a power film capacitor and a film cap. Numerous benefits include practically limitless shelf life, damage-free power spike resistance, and minimal self-inductance for this capacitor. The capacitor's very reduced ESR (ohmic resistance) and ESL are further benefits (Parasitic Inductance). In a number of AC applications, this is preferred. It is also used for applications that call for high frequencies.