BFC236827685

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Film Capacitors

Film capacitors, also known as polymer or plastic film capacitors, are one of the most used type of capacitors. Film capacitors offer a range of features such as high accuracy, high input and output voltage, and small size. Film capacitors can be used for many different applications, such as in electronics, electrical engineering, automotive, industrial, and aerospace applications.

BFC236827685 Application Field and Working Principle

The BFC236827685 is a polyethylene-terephthalate (PET) film capacitor. It is a non-electrolytic film capacitor that features self-healing properties, a low dielectric absorption coefficient, high load life, and wide temperature range compatibility. This type of film capacitor is used in a wide range of applications, such as controlling high frequency noise in automotive audio systems, allowing circuits with higher switching frequencies, and providing buffering in telecommunications networks. It is also used for decoupling signals, high speed, and pulse applications.

The working principle of the BFC236827685 is based on electrostatic coupling. The device has two electrodes surrounded by a dielectric medium. When a voltage is applied across the electrodes, an electric field is generated which causes charges to accumulate on the electrodes. This creates a charge separation, which is then held in place by the dielectric medium, creating a capacitance. The capacitance of the film capacitor is determined by the area of the electrodes and the dielectric constant of the medium used.

In terms of construction, the BFC236827685 film capacitor is constructed using a PET film and a metallic layer. The two layers are separated by a dielectric medium. The electrodes are formed by patterned layers of aluminium/zinc deposited on the PET film, and the dielectric medium is composed of a thin layer of unidirectional epoxy. The capacitors are assembled into a sealed package, where the electrodes are connected to the external leads.

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