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Film Capacitors

SFS37S45K375B-F Application Field and Working Principle

Film capacitors, also called film dielectric capacitors, plastic film capacitors or polyester film capacitors, are capacitors with a plastic film dielectric. They can be divided into metallized film capacitors and non-metallized film capacitors. Common metallized film capacitors include polyester film capacitors and polypropylene film capacitors. Non-metallized film capacitors are often used as high-frequency capacitors (especially class X capacitors).

SFS37S45K375B-F Capacitor Application Field

The SFS37S45K375B-F capacitor is a conductor-electrode FC-A film capacitor suitable for a wide range of AC and DD operating conditions. Commonly used in air conditioners, color TVs, washing machines, refrigerators and other household appliances.

SFS37S45K375B-F Working Principle

The SFS37S45K375B-F capacitor consists of an anode (electrode) and a cathode (electrode), which are separated by a dielectric layer. The dielectric is usually made of a thin plastic film, and when the voltage is applied to the two electrodes, an electric field is generated in the dielectric, and electrons move from one electrode to the other. This creates a charge balance on each side of the dielectric, resulting in an electric current. The size of the electric current is determined by the characteristics of the dielectric material, such as its thickness, its composition and the amount of charge stored.

The capacitance of the SFS37S45K375B-F capacitor also depends on the dielectric material. The higher the dielectric constant of the material, the smaller the required area for the same capacitance. In addition, the capacitor\'s ability to resist electrical leakage also depends on the dielectric material. The higher the breakdown voltage of the dielectric, the greater the insulation resistance of the capacitor.

Advantages of SFS37S45K375B-F Capacitor

The SFS37S45K375B-F capacitor has the following advantages:

• Wide temperature range: The temperature range of this capacitor is -25°C to +70°C.
• Excellent endurance: The endurance of the SFS37S45K375B-F capacitor is much higher than that of other capacitors.
• Excellent noise suppression: The SFS37S45K375B-F capacitor has good noise suppression ability.
• long life: The SFS37S45K375B-F capacitor has long life span, effectively reducing the service cost.

Conclusion

The SFS37S45K375B-F capacitor is a highly reliable and widely used capacitor in the film capacitor family. It has a wide temperature range and excellent endurance, suitable for a variety of application fields. It has good noise suppression ability and long life, effectively reducing service costs.

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