474PSB122K4H

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Film capacitors, also called polypropylene capacitors, are composed of a dielectric layer made of plastic or film. They store electrical energy in the form of an electric field like all other capacitors, but they are quieter, have low inductance, and higher insulation resistance than other types of capacitors. The 474PSB122K4H is an example of a film capacitor and has numerous applications in various industries ranging from acoustics and hearing aids to defense and aerospace. This article will discuss the 474PSB122K4H application field and working principle.

Applications of 474PSB122K4H

The 474PSB122K4H is a capacitor with a voltage rating of 250VAC and a capacitance of 1.2µF. This makes it suitable for numerous applications, such as low-voltage audio circuits, electric motor start/run circuits, and filament drive circuits in industrial and commercial equipment. It is also widely used in applications requiring a high insulation resistance and stability. Examples include communication equipment, medical equipment, hearing aids, and automotive electronics. In addition, the 474PSB122K4H can also be used as a snubber in power supplies, DC-DC converters, and induction heaters.

Working Principle

The 474PSB122K4H is composed of two electrodes with an insulating layer between them. The insulating layer is usually made of polypropylene film, which prevents current from travelling through it. The film also ensures that the capacitor is stable and reliable against voltage and temperature fluctuations. When a voltage is applied to the capacitor, charge accumulates on the electrodes, resulting in an electric field between them. The magnitude of the electric field is proportional to the applied voltage, but the magnitude of the electric field is limited by the dielectric strength of the film. This electric field stores energy, which is released when the voltage is removed.

Conclusion

The 474PSB122K4H is a film capacitor with numerous applications in various industries ranging from audio circuits and hearing aids to defense and aerospace. It is also widely used in applications requiring a high insulation resistance and stability due to its 250VAC voltage rating and 1.2µF capacitance. The 474PSB122K4H capacitor is composed of two electrodes with an insulating layer between them, which is usually made of polypropylene film. When voltage is applied to the capacitor, charge accumulates on the electrodes, resulting in an electric field between them that stores energy.

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