B25856K2104K3

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Film capacitors are energy storage devices in which a thin plastic film is used as the dielectric material. These components consist of two metal layers, with an insulating film between them, able to store energy in the form of an electric field. B25856K2104K3 is one such film capacitor.

Application Field

B25856K2104K3 is generally used as a kind of AC motor run capacitor in the frequency range of 50/60 Hz. It is used where large capacitance values and linear operating characteristics are required for applications in the supply network. Also, it can be used in air conditioning systems, air blowers, electric fans, laminators, pumps, compressors, welding plant, and many other similar electronic circuits.

Working Principle

The B25856K2104K3 uses a dielectric film for insulation. It consists of two metal layers of silver metallized polypropylene film which form the electrodes for the capacitor. The application of an alternating voltage causes the polarization of the dielectric layers of the film capacitor. This is due to the delayed displacement of electrons and holes while an electrical field is present. This electrical displacement of electrons and holes causes a polarizing current in the capacitor.

The current flowing through the capacitor is the result of capacitor charging and discharging. The capacitor charging process occurs when electrons flow from the lower electrical potential to the higher electrical potential, while the capacitor discharging process occurs when the electric field between the two metallic layers dissipates. This process causes the current to flow from the higher potential to the lower potential. The combination of charging and discharging creates a sinusoidal acquired voltage across the capacitor, which is known as the LR60-curve.

The LR60-curve is a type of alternating current. The capacitor\'s rated voltage is the maximum peak voltage that can be applied to the capacitor, while its working voltage is the average voltage across the capacitor at any given moment. The difference between the two is referred to as the peak-to-peak voltage.

The capacitance of the B25856K2104K3 increases with increasing frequency. At 1 kHz, its capacitance value is roughly 4,600 pF, and the capacitance value increases to 10,000 pF at 10 kHz. Its maximum operating frequency is up to 40 kHz.

Conclusion

The B25856K2104K3 is a film capacitor with a wide range of applications. It is mostly used as an AC motor run capacitor in the 50/60 Hz frequency range, and can also be used for a variety of other specialized functions. Its capacitance increases with frequency, with a capacitance value of 4,600 pF at 1 kHz and 10,000 pF at 10 kHz. The LR60-curve is a type of alternating current from the combination of charging and discharging processes, and the capacitor\'s rated voltage is the maximum peak voltage it can be subjected to.

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