A Teflon film capacitor is a type of film capacitor that utilizes Teflon (polytetrafluoroethylene or PTFE) as the dielectric material. Teflon is a high-performance polymer known for its excellent electrical properties, including a high dielectric constant, low dissipation factor, and resistance to temperature variations. Teflon film capacitors are valued for their stability, reliability, and ability to maintain precise capacitance values over a wide range of operating conditions.