UVR1HR22MDA

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Aluminum electrolytic capacitors are widely used in equipment such as electronic appliances, power supplies, solar cells, and automotive systems. The UVR1HR22MDA is a type of aluminum electrolytic capacitor which is manufactured by Mallory. This product is a Snap-in rectangular capacitor with a very low ESR (Equivalent Series Resistance) and high ripple current capabilities. The UVR1HR22MDA is often used in applications that require a capacitor with low ESR and high ripple current capabilities.

The UVR1HR22MDA has a temperature range of -55°C to +85°C and a voltage rating of 450 VDC. It has a snap-in mounting system and offers a high ripple current of up to 490 mA. The UVR1HR22MDA is also available with a variety of different capacitance values. Depending on the application, the UVR1HR22MDA can be ordered with capacitance values ranging from 0.1 uF to 4700 uF.

The UVR1HR22MDA is typically used in applications where very low ESR is required, such as in high frequency switching power supplies, motor drives, and other power-related circuits. It is also commonly used in high ripple operated circuits such as battery charging circuits and DC-DC converters. The UVR1HR22MDA also offers good heat dissipation and long operating life due to its low ESR.

The working principle of an aluminum electrolytic capacitor is based on the Faraday effect. It is a type of electrochemical capacitor that uses two aluminum foils as electrodes set between a solid barrier called an electrolyte. This barrier is actually an oxide layer formed on the surface of the aluminum foil. The aluminum electrode is also called the anode and the electrolyte is called the cathode or dielectric. The oxide layer acts as a barrier between the two plates to prevent electrical current from crossing from one side of the capacitor to the other.

When a voltage is applied, an electrical field is generated across the aluminum electrodes and the oxide layer. This field induces a current across the barrier and is then stored as electrostatic energy in the capacitor due to the accumulation of electrical charge. The amount of charge stored is proportional to the applied voltage, and the capacitance of the aluminum electrolytic capacitor is determined by the ratio of the applied voltage and the electric field created.

As the applied voltage increases, the electrical field increases, and more electrical charges accumulate on the capacitor’s electrodes. As a result, the amount of energy stored in the aluminum electrolytic capacitor increases, leading to an increase in the capacitance. The use of the oxide layer ensures that the capacitance remains constant as the voltage is changed.

The UVR1HR22MDA is ideal for use in applications requiring high ripple current and low ESR. It has a snap-in mounting style which makes it easy to install and it is available in a wide range of capacitance values. It also has a temperature range of -55°C to + 85°C, making it suitable for use in extreme temperature environments. It offers very low ESR, making it ideal for use in applications that require low ESR and high ripple current.

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