BFC246829125

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Film Capacitors

Film capacitors, also known as metallized film capacitors, are electrical components that have been used for decades in modern electronics. They are available in different shapes and sizes, and their construction and working principle significantly differ between different types of capacitors. This article will look at the specifics of the BFC246829125 type of film capacitor, discussing in particular its application field and working principle.

The BFC246829125 Film Capacitor

The BFC246829125 is a type of film capacitor made up of a cylindrical metalized film wound and encased in a cylindrical aluminum body. It is a self-healing metallized polyester film capacitor intended for standard and low-voltage applications. This capacitor type is known for its high-efficiency, stability, and reliability while providing efficient operation in the wide temperature range of -40°C to +125°C.

Application Field

Due to the BFC246829125\'s excellent characteristics, it has found applicability in a wide variety of applications, including dc blocking, pulse discharging, snubber circuits, and high-frequency circuits. DC blocking includes its use in power lines and in controlling the bias of transistors. The capacitor is also utilized for energizing and de-energizing the circuit and providing a alternating waveform in which current is used for driving transistors. In pulse discharge, it functions as an energy source for providing short, high-power pulses to the voltage transient.

Working Principle

The BFC246829125 film capacitor works by opposing the change of electric charge under applied voltage. It consists of the metalized film and a dielectric material that is placed between two parallel electrodes. When a voltage is applied between the electrodes, a dielectric polarization electric field is created in the dielectric. This electric field increases the capacitance of the film, thus allowing it to store energy. The energy stored in the capacitor is proportional to the capacitance multiplied by the square of the applied voltage.

When an alternating current is applied to the terminals of the capacitor, a current flow is created in the film. As the frequency increases, the current becomes an ever increasing multiple harmonic of the applied frequency. This harmonic current is what gives the BFC246829125 its excellent resistance to voltage and temperature. At low frequency, the dielectric constants are relatively constant, enabling the capacitor to store energy efficiently.

Conclusion

In conclusion, the BFC246829125 type of film capacitor can be used in a wide range of applications due to its excellent characteristics. It works by opposing the change of electric charge under applied voltage, and the energy stored in the capacitor is proportional to the capacitance multiplied by the square of the applied voltage. At low frequency, the dielectric constants are relatively constant, enabling the capacitor to store energy efficiently. This makes the BFC246829125 a reliable and efficient choice for consumer electronics applications.

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