Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Film Capacitors

Film capacitors, also known as plastic film capacitors, are devices that are typically used as a passive electrical component. They are composed of two metal plates of differing polarities, separated by a film dielectric. Film capacitors are generally used to store electrical energy and filter out AC signals in many electronic devices, such as radio receivers, amplifiers, and digital equipment like computers. In this article, we’ll discuss the application field and working principle of one such film capacitor design – BFC238560133.

Application Field

Film capacitors like the BFC238560133 are often used in switch-mode power supplies. These devices are excellent for use in such applications due to their low equivalent series resistance (ESR) and limited inductance levels. This makes them ideal for use as a filter, providing controllable phase angle and frequency limits, which help reduce electromagnetic interference (EMI) and improve overall system performance.

These capacitors are also used in AC-operated motors, solar inverters, home theaters, and other specialized applications. They can also be used as backup power sources in critical systems, such as data centers and voice over IP (VoIP) networks. Additionally, film capacitors are popular in DC-DC conversion designs, as they can hold large amounts of charge, even when operating in high-frequency switching conditions.

Working Principle

The BFC238560133 film capacitor contains a plastic-based dielectric layer that is sandwiched between two electrically conductive electrodes. The dielectric layer serves to create an electric field, as it does not allow electrons to move freely across it. Instead, the electric current is forced to travel through the dielectric layer, forming electrostatic charges at the electrode-dielectric interfaces.

When an electrical potential is applied to the terminals of the film capacitor, the electrostatic charges will accumulate at each of the electrodes. These charges form a stored electric field, thereby allowing the capacitor to behave as an electrical energy storage device. The electrical current will continue to cycle through the capacitor until the applied voltage is removed or the stored energy is gradually dissipated.

The BFC238560133 film capacitor is also designed with an internal structure, which helps to reduce the equivalent series resistance (ESR) and limit the inductance levels. This internal structure consists of an insulated core, which is designed with multiple layers of polypropylene, orientated in different ways to reduce the ESR and minimize the inductance levels.

Conclusion

In conclusion, the BFC238560133 film capacitor is an ideal choice for use in switch-mode power supplies, AC-operated motors, solar inverters, home theaters, and a variety of other applications. This device offers high capacitance and low equivalent series resistance, helping to reduce electromagnetic interference and improve system performance. Additionally, its internal structure helps to reduce the ESR and limit the inductance levels of the film capacitor.

The specific data is subject to PDF, and the above content is for reference