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Film Capacitors

Film capacitors are passive electronic components which use a thin polymer film as the dielectric between plates of metal in order to store electrical charge. These components find use in a variety of applications ranging from power supplies and signal conditioning, to audio filters and frequency selective applications. One such type of film capacitor is the BFC238066472, a standard double-sided polypropylene capacitor produced by the industry giant Nichicon.

Applications

The BFC238066472 is primarily used in power supplies and signal conditioning applications, due to its excellent performance and durability in critical applications. This type of capacitor offers excellent high frequency characteristics, low dielectric absorbtion and low ESR values, making it ideal for use in power supplies and other switching power circuits where operation must occur at relatively high frequencies. The BFC238066472 is also frequently used in audio frequency applications, such as in audio filters, notch filters, resonators and other frequency selective circuits.

Working Principle

The BFC238066472 consists of two metal plates separated by a thin layer of polypropylene film. This film essentially serves as the dielectric between the two plates, providing an electrical insulation barrier which prevents direct current (DC) from flowing between the two plates. However, when an alternating current (AC) is applied to the capacitor, the polypropylene film allows the electrical charge to oscillate between the two plates, thus storing electrical energy.

Due to its thin dielectric barrier, the BFC238066472 has a relatively small capacitance value, which is typically measured in capacitors, microfarads (μF) or nanofarads (nF). The capacitance of a typical BFC238066472 is typically around 1 μF, though this value can vary significantly depending on the particular characteristics of the capacitor. The capacitance of a capacitor is inversely proportional to the applied voltage, meaning that as voltage increases, the capacitance decreases. This characteristic can be used to advantage in certain applications, such as in high frequency switching circuits, as the lower capacitance ensures higher response times.

Conclusion

The BFC238066472 is an excellent choice of capacitor for many different types of applications, especially power supplies and signal conditioning circuits. Thanks to its thin dielectric layer, the BFC238066472 has an excellent performance in high frequency applications, making it ideal for use in a variety of applications.

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