USH1C221MHD

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Aluminum electrolytic capacitors are one of the main types of capacitors used in electronic circuits. The USH1C221MHD is a radial-leaded aluminum electrolytic capacitor with a maximum operating temperature of 105°C. It has a rated voltage of 420V and an extremely low ESR (Equivalent Series Resistance) of 10mΩ. Its rated capacitance is 221µF, making it an excellent choice for use in power supply applications.

Aluminum electrolytic capacitors utilize a chemical reaction between aluminum foil and an electrolyte to store electrical energy. The structure of an aluminum electrolytic capacitor consists of an anode (positive terminal) made of aluminum foil, a cathode (negative terminal) made of aluminum foil with an oxide layer, and an electrolyte material, usually an organic solvent containing an acid or a basic solution. When a voltage is applied across the terminals, an electrical double layer forms on the surface of the anode. This double layer acts like an insulator but effectively stores electrical energy, allowing current to flow through the device.

As current passes through the anode foil and the electrolyte, a chemical reaction occurs, forming an oxide layer on the anode. This layer acts as a barrier between the anode and the electrolyte and blocks current flow, thus limiting the amount of energy that can be stored in the component. The thicker the oxide layer, the higher the capacitance of the device.

The USH1C221MHD has a wide range of applications, such as power supplies, noise filters, and energy storage. Its low equivalent series resistance is beneficial in applications such as filtering, where it can help reduce voltage ripple and power line noise. Its high capacitance makes it suitable for applications such as energy storage and power supply buffering. Together, these two features make the USH1C221MHD an excellent choice for a wide range of power applications.

In summary, the USH1C221MHD is an aluminum electrolytic capacitor with a maximum operating temperature of 105°C and a rated voltage of 420V. It has a low ESR of 10mΩ and a rated capacitance of 221µF, making it suitable for use in power supply applications. Its wide range of applications, such as power supplies, noise filters, and energy storage, make it a versatile component.

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