BFC237115105

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Film Capacitors

Film capacitors, also known as plastic film capacitors, are among the more common types of capacitors. These types of capacitors use a thin dielectric film as their dielectric medium, hence the name. Film capacitors are widely used in electronic devices due to their stability, reliability, and ability to hold a charge for long periods of time. In this article, we will discuss the BFC237115105 application field and working principle.

Application Field of BFC237115105

The BFC237115105 is a film capacitor with an operating voltage of 275VAC, a rated frequency of 50/60 Hz. It features low loss and self-healing properties. Due to its low ESR and ESL values, this capacitor is ideal for a variety of power applications and high-frequency circuits. It is widely used in AC-DC converters, medical equipment, lighting fixtures, dampers, and air purifiers, and many other electronic devices.

Working Principle

A film capacitor is constructed using a number of alternating layers of metal and dielectric material. Due to its construction, the capacitor can store a charge for a long period of time. When a voltage is applied to the capacitor, electric charges concentrate at the interface between the metal and dielectric layers due to the polarization of the dielectric material. This phenomenon is known as the electric field effect. As the electric field builds up, an increasing amount of electric charge is stored in the capacitor.

The electrical charge stored in the film capacitor can be discharged quickly through a current when a voltage is applied to it. This is known as the dielectric absorption effect. The charge stored in the capacitor can be discharged even without a voltage applied to it, but slower, as a result of the capacitive leakage phenomenon. This capacitive leakage decreases the capacitance of the capacitor gradually over time.

Conclusion

In conclusion, film capacitors, such as the BFC237115105, are widely used in a variety of electronic applications. They are very reliable and can store charge for a long time due to the electric field effect and dielectric absorption effect. The capacitance of the capacitor gradually decreases over time due to the capacitive leakage phenomenon. This makes film capacitors an ideal choice for many electronic applications.

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