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Film Capacitors

Film capacitors, also known as plastic film capacitors, polyester film capacitors, polypropylene film capacitors, and film dielectric capacitors, are passive electronic components that use a dielectric film as the dielectric medium. Among the various types of capacitors, film capacitors are considered ideal for most electronic signal filtering and high frequency applications due to their superior insulation properties, stability, and accuracy.

BFC237115104 Application Field and Working Principle

The BFC237115104 is a polypropylene film capacitor designed for electronic applications. This film capacitor has a working voltage of 100Vdc and is provided in a small E7 case. Its rated capacitance is 2.2nF and its tolerance is 20%.

The BFC237115104 is suitable for high frequency circuits, EMI-RFI suppression circuits, power supply filtering, and signal line noise suppression, among other applications. This film capacitor features stability, high ripple current capability, excellent insulation properties and a long product life. It is also UL approved.

The working principle of the BFC237115104 is based on Faraday\'s Law of Electromagnetic Induction. The capacitor is composed of two metal plates separated by a dielectric film. When a voltage is applied to the capacitor, the positive charges accumulate on one plate and the negative charges on the other plate. This creates an electric field between the plates. The electric field affects the dielectric material in the film, which then absorbs the energy and stores it while the electric field is present. Once the electric field is removed, the stored energy is released in the form of a discharge current.

The dielectric material used in the BFC237115104 is polypropylene, which is an excellent insulator and provides excellent dielectric properties. It has a relatively low losses compared to other types of dielectric materials, and has a particularly high level of the dielectric constant. This material also has excellent stability, which makes it suitable for long-term usage and high frequency applications.

The BFC237115104 is rated for use at up to 100Vdc. It is designed to achieve excellent temperature stability and a long product life. It is also RoHS compliant and UL approved which makes it suitable for use in most applications.

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