101C334U040DG2D

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Introduction of Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are components used for storing electricity in electronic circuits. These capacitors are made from conducting metal, usually aluminum, that is coated with a thin layer of oxide film showing a high dielectric field strength. They are primarily used for power supply conditioning and filtering in dc-dc converter topologies, as well as ac filtering, and power factor correction applications. With their low cost, low ESR, and high capacitance per volume, aluminum electrolytic capacitors are attractive components for engineers who seek to optimize cost vs performance of their designs.

101C334U040DG2D Application Field and Working Principle

The 101C334U040DG2D capacitor is an aluminum electrolytic capacitor from Nichicon. It has a rated voltage of 160Vdc, a capacitance value of 3300uF, and a ripple current of 8100mA, making it ideal for high-power conversion and filtering applications. It has a leakage current of ≤3.2μA at 20℃ and an operating temperature range of –40 to +105℃ (–40 to +85℃ for other specs). Since it has a self-healing property, it is suitable for applications in which current surges occur.

The working principle of aluminum electrolytic capacitors is based on the formation of an oxide film on the surface of the aluminum foil. The oxide acts as the dielectric film, separating two metal plates and forming an electrical field. When a voltage is applied to the capacitor, the oxide film builds an electric charge which can be stored until the capacitor is discharged. In the case of the 101C334U040DG2D, the aluminum foil is encased within an outer shell, which insulates the capacitor and prevents short circuits.

Conclusion

Aluminum electrolytic capacitors are widely used in electronic circuits for power supply conditioning and filtering. The 101C334U040DG2D capacitor from Nichicon is a high-reliability, high-power aluminum electrolytic capacitor with performance characteristics suitable for dc-dc converter topologies, ac filtering, and power factor correction applications. The working principle of the aluminum electrolytic capacitor is based on the formation of an oxide film on the surface of the aluminum foil, which acts as the dielectric and stores the electric charge until it is discharged.

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