UKL1H221MHD

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are a type of electrolytic capacitor which utilizes an aluminum foil as the anode in an electrolytic solution, such as an aqueous solution of sulfuric acid or an organic solvent containing an ionizable salt such as potassium or lithium. It has a high energy density and can store a large amount of energy in a small size.

The UKL1H221MHD is a particular type of aluminum electrolytic capacitor. It has a maximum rated voltage of 150 volts and has an operating temperature range of -55 to +125 degrees Celsius. Its dimensions are 11x880mm and it has a typical capacitance of 220 microfarads. The UKL1H221MHD has an ESR rating of 0.28 ohm and a maximum ripple current of 5600 mA.

Aluminum electrolytic capacitors are widely used in power electronic applications, including DC/DC converters, motor drives, and uninterruptible power supplies. They are also used to dampen electromagnetic interference and to form low-pass filters. In addition, they can be used to store energy and regulate voltage in ac-dc and dc-dc circuits.

In terms of working principle, aluminum electrolytic capacitors use an anode foil coated with an electrolyte. This generates a space charge across the dielectric which forms a capacitor. The voltage across the capacitor and the resulting current flow depend on the capacitance and the amount of stored charge. When the capacitor is charged, electrons flow from the anode to the cathode, which leads to an accumulation of negative charge on the anode and a positive charge on the cathode. When the voltage across the capacitor is reversed, the direction of electron flow changes and the initially accumulated charges are discharged. The electrochemical process continues until the capacitor is fully charged.

In summary, the UKL1H221MHD is an aluminum electrolytic capacitor which has a maximum rated voltage of 150 volts and a temperature range of -55 to +125^oC. It has a nominal capacitance of 220m^F and is typically used for power electronic applications such as DC/DC converters, motor drives, and uninterruptible power supplies, as well as for filtering and energy storage. The working principle of aluminum electrolytic capacitors is based on the anode foil coated with an electrolyte, which forms a capacitor with a space charge across the dielectric.

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