305PHB850K2J

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Film Capacitors

Film capacitors are capacitors that contain a dielectric material composed of one or more layers of thin polymer film. They are often used in the power electronics industry, as well as in motor drive applications, higher voltage switching applications, and more. A 305PHB850K2J film capacitor is one example of a film capacitor used in a variety of applications.

Application of 305PHB850K2J

The 305PHB850K2J is a high-reliability, high-voltage polypropylene film capacitor specifically designed for medium-voltage applications. It provides reliable performance in a wide range of industrial and consumer electronics applications where high-reliability is a priority, including medium-voltage AC and DC drives, electric fences and garden lights, electric wheelchairs, motor controls, and handheld portable medical devices.

The 305PHB850K2J capacitor has a particularly robust design, which allows it to withstand temperature extremes and humid conditions. It features a high-voltage rating of 850VAC, making it suitable for powering higher-voltage components. Moreover, the capacitor offers high reliability and stability, which makes it ideal for a wide range of applications.

Working Principle

The 305PHB850K2J film capacitor consists of two metal plates, separated by a thin dielectric layer made of polypropylene film. When a voltage is applied to the capacitor, the dielectric layer stores electrical charge, allowing a current to flow between the two plates. The amount of charge stored and the current that flows between the plates is determined by the size and type of the dielectric layer.

The 305PHB850K2J capacitor also has a reverse-biased voltage breakdown voltage, which ensures that if the voltage applied to the capacitor exceeds the preset voltage level, the dielectric layer of the capacitor breaks down and current flows freely between the two plates, preventing further increases in voltage. This is important in applications that require high voltage stability — the reverse-biased voltage breakdown voltage ensures that the voltage level and current flow remain constant over time.

The 305PHB850K2J film capacitor also features over-current protection, which prevents excessive current during operation. This feature is especially important in applications where higher-current events may occur, such as motor drive applications. The over-current protection prevents the capacitor from becoming damaged due to excessive current, ensuring reliable performance over time.

Conclusion

The 305PHB850K2J film capacitor is a reliable, high-voltage capacitor specifically designed for medium-voltage applications. It offers high reliability and stability, as well as over-current protection and a reverse-biased voltage breakdown voltage, making it suitable for a variety of industrial and consumer electronics applications. It is ideal for powering higher-voltage components, as its dielectric layer stores electrical charge and allows a current to flow between the two plates.

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