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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors, also known as electrolytic capacitors, are electrical components used in diverse applications to pass current, store energy, and reduce noise. These capacitors consist of an anode (positive plate) composed of aluminum foil and a cathode (negative plate) coated in a layer of mixed metal oxide. They feature high capacitance, low price, and long life, compared to other capacitor types.

UHE2A471MHD Application Field and Working Principle

The UHE2A471MHD aluminum electrolytic capacitor from Ulnatech is from the company’s High Ripple Current series. Its can size and lead spacing enable it to meet the requirements of various applications, including high-frequency switching power supplies, UPS systems, energy storage systems and motor drives.

The capacitor works based on the principles of polarized electrolytic capacitors. The anode of the capacitor is a rolled aluminum foil with a dimple coating layer of oxide film. The oxide film provides the electrical insulation, whereas the electrolyte functions as the second electrode. The electric charge is stored between the anode and the electrolyte, where the anode acts as the electron source, and the electrolyte acts as an electron sink. Due to its nature, the presence of electric potential difference between the anode and the electrolyte results in a voltage applied across the capacitor. The capacitor can then use this voltage to provide current to other components of the circuit.

Because of their high capacitance, UHE2A471MHD capacitors are ideal for applications where high frequency ripple current is needed. These capacitors are also suitable for applications requiring high stability, such as in lighting systems, UPS systems, and motor drives. In addition, their design makes them ideal for usage in high-temperature applications.

In order to further extend their lifespan and reliability, UHE2A471MHD capacitors are constructed in accordance with UL94 standard and tested in accordance with the EN 61058-1 international safety-of- use testing standard. This ensures that the capacitors meet the necessary safety and reliability requirements to guarantee optimal performance in various applications over extended periods of time.

Conclusion

UHE2A471MHD aluminum electrolytic capacitors are versatile electrical components suitable for a variety of applications. These capacitors are constructed in accordance with UL94 standard and tested in accordance with the EN 61058-1 safety-of-use standard, to ensure that they meet the necessary safety and reliability requirements. Thanks to their high capacitance and high stability, UHE2A471MHD capacitors are ideal for applications where high frequency ripple current is needed, such as high-frequency switching power supplies, UPS systems, energy storage systems, and motor drives.

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