UHE2A181MHD

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are energy storage devices with high capacitance, wide range of working voltage and wide working temperature range. Among all the capacitors, aluminum electrolytic capacitors have the largest capacitance in the same volume, but have the shortest life and are most expensive. Therefore, aluminum electrolytic capacitors are used in special occasions such as high reliability and high power.

UHE2A181MHD is a general DC application, bipolar electrolytic capacitor with volumetric efficiency and long-term reliability. It belongs to medium voltage and power series. Its rated voltage is 630VDC and it has excellent electrical characteristics, including low ESR, low ESL, high ripple current, low DCL and low DF value. The wide temperature range and high temperature rise make it ideal for demanding applications such as LED lighting, welding equipment, high-frequency ultrasound, DC motor control, and automotive applications.

In terms of working principle, UHE2A181MHD uses an electrolyte film as its dielectric material and aluminum foil as its electrodes. The aluminum foil serves as both positive and negative electrodes. Current is applied to the aluminum foil, causing oxidation of the surface and formation of a thin oxide film, which serves as the dielectric. The oxide film can withstand the high voltage required to form a stable electrical field and store an electric charge. The metal oxide is also able to store a charge for a long period of time, making it suitable for long-term energy storage.

In conclusion, UHE2A181MHD is an ideal choice for high voltage, high power and extreme temperature applications. It has low ESR, low ESL, high ripple current, low DCL and low DF value, and wide operating temperature range. It is particularly suitable for applications such as LED lighting, welding equipment, high-frequency ultrasound, DC motor control, and automotive applications.

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