EEU-FR1E470B

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors use electrolytes to form a pressurized film between two metal plates. This pressurized film provides a higher capacitance and allows for higher breakdown voltages per unit surface area. Aluminum electrolytic capacitors have a wide range of uses in electronics, from voltage smoothing in power supplies and motor speed controllers to filtering noise and transients in digital circuit design. The EEU-FR1E470B is an example of an aluminum electrolytic capacitor specifically designed for applications in switched-mode power supplies. In this article, we will discuss the application field and working principle of the EEU-FR1E470B.

Application Field

The EEU-FR1E470B is designed for applications in switched-mode power supplies. It is a long life capacitor that offers high capacitance in a small form factor, making it ideal for high current applications. Its high capacitance to size ratio also makes it suitable for use in high frequency converters. The capacitor has a self-healing function that prevents the dielectric breakdown and ensures a long service life. The EEU-FR1E470B has a very low ESR rating, making it well suited for voltage-switching applications.

Working Principle

The EEU-FR1E470B uses a wet electrolytic medium to form a pressurized film between two metal plates. This pressurized film acts as an insulator and provides a higher capacitance than traditional electrolytic capacitors. The capacitor also has a self-healing function that protects against dielectric breakdown. When a voltage is applied, the film builds up pressure until it reaches its rated value, at which point it breaks down and the current is transferred to the plates.

The capacitor has two terminals - a positive and a negative. The positive terminal connects to the positive voltage source, while the negative terminal connects to the circuit load. When a voltage is applied to the capacitor, the positive terminal charges up and the negative terminal discharges. This process continues until the voltage across the capacitor reaches its rated value, at which point the current stops flowing and the capacitor is discharged.

The EEU-FR1E470B is designed to operate under harsh conditions. It has a rated temperature range of -40 to +105 degrees Celsius, making it suitable for use in industrial and automotive applications. It also has a low leakage and long life, making it an ideal choice for applications where high capacitance is required in a small form factor.

In summary, the EEU-FR1E470B is an aluminum electrolytic capacitor specifically designed for applications in switched-mode power supplies. It offers high capacitance in a small form factor, along with a self-healing function that provides protection from dielectric breakdown and a long service life. Its low ESR rating and wide temperature range make it an ideal choice for voltage-switching applications.

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