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Film capacitors are widely used as electrical components in various fields such as signal filtering, noise reduction, gain control, and energy storage. Specifically, film capacitors can be used to filter out high frequency noise, to reduce input impedance, to stabilize supply voltage, to control circuit gain, and etc. German leader in capacitor technology – KEMET have recently introduced a new type of film capacitor – BFC241871604.

Construction

The BFC241871604 film capacitor is constructed using a self-healing polypropylene dielectric that is wound together with a copper-drop-foil-on-polyester terminal plate. This type of winding design allows for an increased surface area between the windings and therefore lowers the ESR value. It also gives the BFC241871604 excellent heat dissipation capabilities, making it suitable for high temperature applications. The casing is made from an aluminum core that serves to shield and protect the internal components of the capacitor, and provides a mounting point for fastener-suction components.

Application Field

The BFC241871604 film capacitor has a variety of applications. Its low ESR value allows it to be used for power filtering, DC-DC converters, energy storage, and motor control. The low reflected-current and high voltage characteristics make it suitable for use in high-power applications. The robust construction of the BFC241871604 makes it well suited for use in harsh environments, such as in military and aerospace applications. The capacitor’s mounting point allows for simple installation in a variety of places and the casing design enables it to dissipate heat more effectively in high temperature environments.

Working Principle

The working principle of a film capacitor is based on the concept of capacitance. When a voltage is applied across the two plates, an electric field is formed between them. This electric field causes the charges to separate and a dielectric material is placed between the plates to control the magnitude of the electric field. The greater the dielectric constant of the material, the greater the capacitance of the capacitor. The BFC241871604 film capacitor uses a self-healing polypropylene dielectric which has a high dielectric constant, allowing for a larger capacitance than other types of film capacitors.

Conclusion

The BFC241871604 is a versatile and reliable film capacitor that is well-suited to a variety of applications. Its robust construction and ESR value make it an ideal choice for high-power applications, and its small size and mounting point make it easy to install in many environments. The capacitor’s dielectric material also helps to ensure good heat dissipation in high temperature applications.

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