890324025011CS

Film Capacitors

Film capacitors, sometimes referred to as plastic film capacitors or polymer film capacitors, are a variety of capacitor which use a plastic film in the dielectric. They are widely used in consumer electronics, radio frequency applications and other applications requiring reliable, high energy storage. Film capacitors are constructed from two layers of electrodes between a plastic film dielectric layer. The dielectric is provided by materials such as polypropylene (PP), polystyrene (PS) and polyethylene terephthalate (PET).

890324025011CS Application Field

The 890324025011CS film capacitors are specially designed for high-frequency and high-energy applications, such as in lighting, video, audio, and broadcast. 890324025011CS film capacitors provide reliable, long-lasting operation in these high-temp environments, thanks to their low leakage, high-temp stability, and high maximum DC voltage. Additionally, these capacitors feature a polarized design with reverse polarity protection built in, which makes them more resilient to current peaks or transients.

890324025011CS Working Principle

The 890324025011CS film capacitors are ready to work in high frequency and energy level applications. The two aluminium foil layers act as electrodes and are separated by a dielectric layer. A dielectric is required to store charge and is also responsible for the capacitor’s capacitance. In the case of the 890324025011CS, the dielectric is provided by a polypropylene (PP) film. When a electric charge is applied between the two ends of the capacitor, an electric field develops inside the film. The electric field stores the energy related to the capacitance, allowing for initial charging and for long-term charge storage.

When a voltage is applied to the capacitor, electric current flows from one terminal to the other and is opposed by a Faraday force that is dependent on the distance between the two foil layers and the dielectric strength of the dielectric material. The combination of the electric current and the Faraday force creates a self-aligning electric field inside the capacitor which makes sure that the capacitance and voltage remain constant during operation.

Conclusion

The 890324025011CS film capacitors are a reliable solution for high-frequency and high-energy applications. Thanks to their low leakage, high-temp stability, and high maximum DC voltage, the 890324025011CS capacitors are suitable for use in lighting, video, audio, and broadcast systems. Additionally, these capacitors offer reverse polarity protection for greater reliability and resilience during operation.