UHN1C681MPD3

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Aluminum electrolytic capacitors are widely used as the most common type of capacitor. The UHN1C681MPD3 is a unique product in this field, featuring high capacity, low loss, and low temperature performance. This product is ideal for applications such as low-frequency power supplies, telecommunications, and data processing.

The UHN1C681MPD3 is a high-capacity electrolytic capacitor featuring voltage ratings of 6.3 to 50 VDC, and capacitance ranging from 220uF to 4700uF. It is comprised of an alloy cathode, an aluminum winding-anode, and an electrolyte of ethylene glycol and boric acid. The dielectric material is a non-conductive, thin aluminum oxide, formed as a result of anodizing. This product has a wide temperature range of -30 to +85 degrees Celsius, and has been designed to endure high ripple currents, making it ideal for the applications listed above.

The working principle of the UHN1C681MPD3 is as follows: the component features a self-formed aluminum oxide layer, which acts as an insulation layer between the cathode and anode layers. When voltage is applied across the capacitor, electron conduction occurs through the electrolyte, which activates the aluminum oxide layer. This forms an electrical double layer, and thus, current flows between the two layers. As electrons enter the cathode, the electric field produced by the electrons causes anodizing of the anode layer, forming the aluminum oxide layer, thus increasing the capacitance.

The UHN1C681MPD3 has several key advantages over other types of capacitors such as ceramic, film, or tantalum capacitors. For one, its capacitance is much greater than the other types, with up to 4700uF compared to the maximum of few hundred uF for all three. Furthermore, its low Internal ESR (Equivalent Series Resistance) and ESL (Equivalent Series Inductance) values, make it ideal for low-frequency applications. Finally, its relatively low temperature coefficient of capacitance causes it to remain constant at different temperatures.

In conclusion, the UHN1C681MPD3 is a highly suitable aluminum electrolytic capacitor for low-frequency power supplies, telecommunications, and data processing applications. Its design allows for high capacitance with low temperatures and low series resistance, making it an ideal choice for these applications.

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