BFC236852223

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Film Capacitors

Film capacitors are a type of capacitor that use an electrical insulating film as the medium between their two plates and possess large capacitance values and high dielectric strength. Depending on the material used, the thickness of the insulating film, and the shape of the plates, film capacitors are divided into the categories of paper, plastic, mica, ceramic, and polypropylene capacitors. BFC236852223 is a plastic film capacitor, which is known as being a highly reliable and long-life capacitance component.

Application Field of BFC236852223 Plastic Film Capacitors

These capacitors are used across a variety of industries for a wide range of applications. Amongst these are the use of BFC236852223 electric capacitors as power supply decoupling capacitors, smoothing capacitors, high voltage EMC filters, high voltage DC link capacitors,and resonance capacitors. For instance, it can also be used in some of the appliances such as Timer, Dryer, Refrigerator, Air conditioner, and Washing machine.

Working Principle of BFC236852223 Plastic Film Capacitors

The “film” of the film capacitors is a dielectric film made of either plastic or paper. When this is placed in between two conductive plates with a spacing between them, a capacitor is created. The capacitance of a film capacitor is calculated by using the following formula: C=εA/d where C is the capacitance (in Farads), ε is the dielectric constant epsilon, A is the overlap area (in meters squared), and d is the distance spacing (meter) between the two plates.

The capacitance of a film capacitor is the same as a regular parallel plate capacitor, however the connection is made through an air insulation gap, instead of an insulator or dielectric material. This gap increases the capacitance of the capacitor, and this is why the distance between the two plates is reduced. When a voltage is applied to the film capacitor, the electrons “jump” through the gap and accumulate on the plates. This forms an electric field, effectively creating a dipole within the capacitor.

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