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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are passive electronic components that are widely used, especially in high current, high voltage applications. They are used in various industry sectors, including automotive, computing, industrial, consumer, and medical. A popular type of aluminum electrolytic capacitor is the 475AVD050MDR. In this article, we will discuss the application field and working principle of the 475AVD050MDR.

Application Field

The 475AVD050MDR aluminum electrolytic capacitor is specifically designed for applications that require an unusually small size and minimal weight. Its anodized aluminum housing makes it highly durable and well-suited for devices that must endure extreme temperatures, shock, and vibration. It is often used for power supply applications, such as automotive electronic power supply, consumer electronic power supply and computer and telecom systems power supply.

The 475AVD050MDR aluminum electrolytic capacitor is also suitable for output-side filtering, such as energy-saving lamps, electronic ballasts, LED lighting, and air conditioners, and also for input-side filtering, such as servo-motor control systems, inverters, and drives.

Working Principle

An aluminum electrolytic capacitor is made from two aluminum layers, which are then separated by a thin dielectric oxide layer. The two aluminum layers form electrical connections, and the dielectric oxide layer acts as an insulator. The capacitor also has two plates made up of a metal oxidized inside of the capacitor. The number of plates determines the capacitance of the capacitor.

Electrical current flows through the capacitor when a voltage is applied to its two terminals. This voltage creates an electric field between the two terminals, which polarizes the dielectric oxide layer, allowing free electrons to move from one plate to the other. The more electrons that move through the capacitor, the greater the electric current that flows.

The amount of capacitance in the capacitor is determined by the level of charge between its two plates. Charging the capacitor requires energy, which is stored by the capacitor and is released when the capacitor\'s voltage is lowered. The capacitor is then able to deliver the stored charge to the circuit.

Conclusion

The 475AVD050MDR aluminum electrolytic capacitor is a popular device, due to its small size and minimal weight. It is designed for applications that require extreme temperature, shock, and vibration, and is also suitable for output-side and input-side filtering. Its working principle is based on two aluminum layers separated by a dielectric oxide layer, which polarizes when an electric field is applied. The number of plates also determines the level of capacitance in the capacitor.

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