3.3uF Encased Polyester Film Capacitor

What are the Polyester Film Capacitors?

Polyester film capacitors, also known as Mylar capacitors, are a type of film capacitor that uses a polyester film as the dielectric material. The dielectric film is sandwiched between two metal electrodes, which are then rolled into a cylindrical shape. Polyester film capacitors are known for their high capacitance stability, low dielectric absorption, and low dissipation factor.

Features and Advantages of Polyester Film Capacitors

Polyester film capacitors offer several features and advantages that make them suitable for a wide range of applications.

1. Polyester film capacitors  have a high insulation resistance, which ensures reliable performance even in high humidity or temperature environments.

2. Polyester film capacitors  have a low self-inductance, making them suitable for high-frequency applications.

3. Polyester film capacitors have a long lifespan and can withstand high voltage levels.

Applications of Polyester Film Capacitors

Polyester film capacitors find applications in various electronic devices and circuits. One of the common applications is in power supply circuits, where they are used for smoothing and filtering purposes. Polyester Film Capacitors are also used in audio equipment, such as amplifiers and speakers, to improve the sound quality. Moreover, polyester film capacitors are utilized in motor start and run circuits, timing circuits, and electronic ballasts.