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Aluminum Electrolytic Capacitors

An aluminum electrolytic capacitor is an electronics component used in electronic circuits. It consists of two metal plates separated by an electrolytic solution which serves as an insulating material. The capacitor stores electrical energy and can be charged and discharged quickly, making it a very useful tool in a variety of applications. This article will discuss the application field and working principle of the aluminum electrolytic capacitor 350MXC120MEFCSN25X25.

Application Field

Aluminum electrolytic capacitors are found in a wide range of electronic applications, from simple power supplies with large capacitance to complex communication systems. They are used predominantly in applications where low power consumption and high power capacity are necessary. For example, they are found in motherboards, hard drives, uninterruptible power supplies, medical equipment, industrial controllers, and automotive electronic systems.

The 350MXC120MEFCSN25X25 aluminum electrolytic capacitor is a popular choice for applications where low ESR, long-life, and high temperature operation are necessary. This capacitor offers a maximum capacitance of 120uF, a rated voltage of 25V, an operating temperature of -40°C to +105°C, and a maximum ESR of 0.10 ohms. It is designed for power supplies and other high-current devices. It is also suitable for any application that requires long-life and high temperature operation.

Working Principle

An aluminum electrolytic capacitor uses two aluminum foils as its electrodes and a separator impregnated with an electrolyte solution as its dielectric. The electrolyte acts as an insulator, ensuring that electric charge only flows between the two foils when connected. Voltage across the capacitor causes electric current to flow, resulting in the chemical reaction of the electrolyte which produces a thin insulating film of oxide on the surfaces of the electrodes.

Electric charge is stored in this oxide film, allowing the capacitor to store energy. When the electric potential across the capacitor is reversed, the electric charge stored in the oxide film is also reversed, thus allowing the capacitor to be used as a charge reservoir. This characterizes the working principle of the 350MXC120MEFCSN25X25 aluminum electrolytic capacitor.

Conclusion

Aluminum electrolytic capacitors are versatile components used in a range of electronic applications. The 350MXC120MEFCSN25X25 is a popular choice due to its higher capacitance, low ESR, long-life, and high temperature operation. Its working principle relies on electric charge being stored in an oxide film formed by the chemical reaction of an electrolytic solution, allowing the capacitor to store energy.

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