BFC230362823

Film Capacitors

BFC230362823 is a type of film capacitor. It is a polarized capacitor that uses thin plastics films as dielectric. Its film construction typically facilitates a larger capacitance in a smaller package than other types of capacitors would allow. These capacitors are also known for their insulation characteristics, which means they are not sensitive to moisture and other environmental variations, and are highly resistant to corona.

Application Fields

Film capacitors are widely used in many different application fields, such as in transmission and power-supply circuits, DC-coupling applications, and audio power-amplifier coupling applications. they are also commonly used to provide filtering and signal-coupling functions in electronic circuits. Film capacitors are also used in high voltage applications, such as in medical equipment and AC mains equipments.

Working Principle

A film capacitor has a dielectric material, which can be made of polymer films, paper, or metalized mylar, between two electrodes. When a voltage is applied across the capacitor, electric charges are stored on the surface of the electrodes, forming an electric field between them. This field pulls the charges on the electrodes together, creating an electrical current. As the electric charge continues to increase, the voltage across the capacitor increases, thus resulting in increased storage capacity.

The current flow through the capacitor is inversely proportional to the capacitance, so the higher the capacitance, the smaller the maximum current that can be allowed to pass through it. As a result, film capacitors are able to handle higher voltages and currents that other types of capacitors wouldn\'t withstand without incurring damage. This makes them incredibly useful in high-voltage applications.