BFC237663273

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Film Capacitors

Film capacitors, also known as plastic film capacitors, are a type of capacitor whose dielectric consists of a thin film of plastic material, such as polypropylene, polyester, polycarbonate, polystyrene, and polyimide. Redox-insulated foil films form the other two electrodes. These capacitors are commonly used in circuits requiring higher levels of accuracy and stability than what is offered by ceramic or electrolytic capacitors.

The BFC237663273 is one of the most popular film capacitors on the market. It is widely used in applications such as audio signal filtering, power factor correction, switching circuits, power supplies, and more. Its unique design provides a reliable and stable performance in a wide range of environments.

Design

The BFC237663273 is a polypropylene film capacitor. It features two narrow redox-insulated aluminum foils wound together and insulated by a polypropylene film. The capacitance of the capacitor is determined by the area of overlap between the two aluminum foils. The capacitance can range from 0.022µF to 0.1µF. Additionally, the BFC237663273 is available in two electrically different versions: a low ESR "Standard" type and a high ESR "Closed" type.

Applications

The BFC237663273 is a high-performance film capacitor designed for use in a variety of applications. Its ability to provide reliable and stable performance over a wide range of temperatures makes it an excellent choice for use in audio filter circuits, power factor correction circuits, switching circuits, power supplies, and other applications that require high accuracy and stability. Its high capacitance makes it ideal for applications that require large amounts of energy storage.

Working Principle

The working principle of a film capacitor is similar to other types of capacitors. It consists of two metal plates that are separated by a dielectric material. When a voltage is applied to the capacitor, an electric field is created across the dielectric. This electric field causes electrons to be transferred back and forth between the plates, which produces a charge on each plate. The charge stored on each plate is equal to the voltage applied to the capacitor, and the total capacitance of a film capacitor is determined by the amount of charge it can store.

The size of a film capacitor is much smaller than other types of capacitors, and this allows it to be used in circuits where space is limited. Additionally, film capacitors have a low leakage current and don’t suffer from the self-heating and voltage losses that other capacitors can suffer from. This ensures that the performance of the capacitor remains consistent over a wide range of temperatures.

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