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Aluminum Electrolytic Capacitors

Capacitors are two-terminal electronic components that store and manage electrical energy and are composed of two conductive plates insulated by a dielectric material such as air, paper, mica, and ceramic. Generally, capacitors are divided into electrolytic capacitors and non-electrolytic capacitors. This article will mainly describe the field of application and working principle of aluminum electrolytic capacitor 450PX4.7MEFCT810X12.5.

Application Field

Capacitors are widely used in various electronic devices due to their advantages in storage and management electrical energy. In addition to that, aluminum electrolytic capacitors have the advantages of large capacitance, small size, wide frequency range, and long life expectancy. Therefore, they are widely used in medium and high frequency circuits in electronic devices, such as TVs, radios, and computers.

In addition, aluminum electrolytic capacitors can be used in some special fields to replace film capacitors. For example, some high-voltage and high-current circuits require a large amount of capacitor capacity. Large-capacity electrolytic capacitors are better suited than film capacitors for such scenarios.

Working Principle

The working principle of aluminum electrolytic capacitors is mainly based on Faraday’s Laws of Electrolysis. An aluminum plate is used as the main body of the capacitor. There is an oxide film on the outside, while the inside is filled with an electrolyte.

When a direct current flows between the two poles, the electrolyte will cause the electrodes to form an oxide film, so that the capacitor can reach the required capacity. When an alternating current passes through the capacitor, because the oxide film has a certain dielectric constant, the resistance to the current flowing in the capacitor becomes larger, and the capacitor has a capacitive effect.

Conclusion

In summary, aluminum electrolytic capacitors, such as 450PX4.7MEFCT810X12.5, have a wide range of applications due to their high capacity, small size, wide frequency range, and long life expectancy. In addition, its working principle is based on Faraday\'s laws of electrolysis and the quantum theory of dielectric constant.

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