BFC2370FC393

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Film Capacitors

Film capacitors, also known as plastic film capacitors, are composed of one or more dielectric films which store an electric charge. Depending on the dielectric material used, film capacitors are divided into two different types, including metallized film capacitors and paper film capacitors. They have low dissipation factor and very low leakage current, making them suitable for high frequency and high voltage applications. They can also be used to filter signal at high frequencies. One of the most popular film capacitors is the BFC2370FC393.

BFC2370FC393 Application Field and Working Principle

The BFC2370FC393 is a non-polarized metallized film capacitor used widely in power electronic and audio electronic products. It is well-suited for frequency up to 1 MHz, with a wide capacitance value range of 0.1μF to 470μF and voltage ratings from 2KV to 10 KV. It has high dielectric strength and low ESR, and features suitable characteristics for DC-link applications in various high frequency power conversion circuits, such as UPS systems, solar inverters, induction heating and welding machines.

In audio applications, it is designed for better sound performance, providing shorter transients and low harmonic distortion. Additionally, it is also widely used as a bypass capacitor in many varieties of RF circuits, as well as in snubber and buffer circuits. On top of that, the BFC2370FC393 is also compatible with almost all types of soldering temperature profiles.

The working principle of the BFC2370FC393 is quite simple. It is composed of flexible polymer film, one or more metal electrodes, and a capacitor case. The electrodes are modified with a micro-scale zigzag pattern arrangement, and are evenly laminated across the film with an electrically conductive adhesive. This allows a high capacitance value to be produced at a low inductance. When electricity is applied, an electric field will be generated across the film and the current will start to flow between the electrodes, thus forming a direct connection.

Once the capacitor is in use, the dielectric strength of the polymer film will be tested to ensure it is functioning properly and is capable of withstanding the voltage applied to it. The capacitance value is also tested to make sure it is within the specified range.

Advantages of the BFC2370FC393

The BFC2370FC393 features several advantages, making it a preferred choice for various power and audio applications. Firstly, it is non-polarized, making it suitable for bi-polar applications. Secondly, due to the low profile of the device, it is well-suited for use in a wide range of electronic products. Thirdly, it offers tight tolerance and reliable temperature characteristics, which makes it suitable for withstanding extreme temperature environments. Lastly, it has a low equivalent series resistance, making it suitable for high frequency and high power applications.

Conclusion

The BFC2370FC393 is an ideal choice for many power and audio applications, as it offers high capacitance, tight tolerance, low equivalent series resistance, and reliable temperature characteristics. It features a non-polarized construction allowing for bi-polar applications, as well as a low profile design making it suitable for a wide range of electrical products. With its highly versatile characteristics, this component can be used in a variety of circuit designs.

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