BFC2373EM475MI

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Film capacitors, also known as plastic film capacitors, plastic film dielectric capacitors, are used for coupling, bypass, filtering and DC blocking application. BFC2373EM475MI is one kind of film capacitors, an axial polypropylene film capacitors which has radial leads for easy connection. It is designed for pulse discharge, excellent stability, and low losses. And what’s more, it is perfect for a variety of electronic applications.

Application Field

The main application field of BFC2373EM475MI is in lighting industry. It is a perfect energy storage element that help supplying power to LED phosphors, LEDs and other light sources. It not only improves the current stability of lamp and prolongs its lifespan, but also reduce the power loss caused by current supply.

Furthermore, BFC2373EM475MI also has its applications in the protection field. Its high capacity and reliability make it suitable for transient surge voltage suppression or transient voltage protection. It offers protection from lightning strikes that occur on the power lines. It can also be applied to protect equipment’s against connection reversals and to protect against voltage transients.

Working Principle

BFC2373EM475MI is a film capacitor which is composed of two lead electrodes and plastic film as its dielectric. The two electrodes are in the form of an axial tube, and the dielectric is insulated by plastic layer. The plastic film has two edges, one roll outward and the other roll inward. This form of the capacitor can contain more energy and has higher conductance than most other forms.

In operation, the leads on the plastic film capacitor are connected to the circuit, forming a capacitor consisting of two plate electrodes and the plastic film as its dielectric. When placed in a circuit, current flows through the capacitor. During this current flow, a charge is built up in the capacitor. This build-up of charge causes the voltage across the capacitor to increase. The capacitor\'s capacitance value determines how much charge can be stored and how much voltage can be applied to the leads. When the internal voltage of the capacitor reaches the maximum rating, no more charge can be stored, thus preventing overvoltage.

The capacitor is also able to store energy in the form of a magnetic field. When a current flows through the capacitor, a magnetic field is generated. This electromagnetic field can absorb the energy from a current waveform and store it as a potential energy. When the current flows in the opposite direction, the stored energy is released to the circuit and dissipated as heat or used to supply power to the load.

Conclusion

In conclusion, BFC2373EM475MI is a classic film capacitor which is available in a variety of sizes and voltage ratings. It has a good performance in lighting industry and protection field. It can be used for couplings, bypasses, filters, and DC blocks, which makes it very flexible to be used in various electronic applications. What’s more, it is able to store energy in the form of a magnetic field in order to make sure its safety operation.

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