UHW1E222MHD

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Aluminum electrolytic capacitors are an important class of capacitor, an electrical device used to store energy in an electric field. They are composed of two aluminum electrodes separated by an electrolyte, typically an aqueous solution of sodium hydroxide, potassium hydroxide or sulfuric acid. The aluminum electrodes are typically insulated from one another, with one being more positive. If a voltage is applied between the electrodes, this causes an electric current to flow through the electrolyte, forming a charged capacitor.

The UHW1E222MHD is a series of aluminum electrolytic capacitors. It is constructed with a three terminal aluminium electrolyte container, allowing for efficient heat transfer, with an adjustable vent in the centre to allow for pressure and temperature control of the electrolyte.

The UHW1E222MHD is primarily used for high-voltage filtering and decoupling applications. The most common application is to filter out any high-frequency noise and ripple which may be present on the power supply line. This helps ensure greater accuracy of the voltage and current levels reaching the circuit, thereby reducing the chance of any malfunctions due to power-supply related issues.

In addition to its filtering and decoupling capabilities, the UHW1E222MHD can also be used as a holdup capacitor, which can help maintain the power supply to a circuit if the main supply voltage is interrupted. It can also be used to store energy and release it to a circuit when required, such as when a motor or other electromechanical device requires a burst of energy for starting purposes. The UHW1E222MHD can also be used in many other applications such as switching power supplies, regulators, power inverters and power converters.

The working principle of the UHW1E222MHD is based on the fact that when a voltage is applied across the capacitor, a current can flow through the electrolyte, causing a charge to build up on the electrodes. This charge is stored within the capacitor until it is discharged, usually when the voltage across the capacitor reaches zero. The amount of energy stored within the capacitor is determined by its capacitance, which is a function of the electrodes’ surface area and the distance between them. The voltage across the capacitor will be equal to the voltage applied across its terminals, so the voltage applied must never exceed the rated value of the capacitor.

For a given capacitance, the UHW1E222MHD has an extremely long life. It is also capable of handling large temperature and voltage swings, making it suitable for use in harsh environments. Its ability to combine high voltage and high temperature ratings make it a popular choice for many high-voltage applications.

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