EMZS250ARA821MJA0G

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are a type of capacitor that uses an electrolyte to achieve a larger capacitance per unit volume than other types of capacitors. They are commonly used in a wide range of applications, from power supplies to signal processing, and are found in a variety of industries, including electric motors, process control, and consumer electronics.

EMZS250ARA821MJA0G is one of the most popular aluminum electrolytic capacitors available on the market. The device features a temperature range of -40 to +125°C and a capacitance range of 250μF. It also features an AC impedance range of 15-100mΩ and a DC leakage current of 0.06CV or less after 5 minutes.

Application Field

EMZS250ARA821MJA0G is typically used in applications that require a large amount of capacitance in a small size. In DC applications, they are useful when a steady voltage value needs to be maintained. In AC applications, they are utilized for ripple filtering, and voltage level shifting. In consumer electronics, they are often employed as bypass capacitors for electrical measurements.

They are commonly used for motor control, power supplies, LCD/LED displays, power conversion, and rectification. They are used to stabilize voltage outputs, reduce regulation losses, and maintain steady current levels, thereby preventing damage to electrical components. Additionally, they are often used for surge suppression, to reduce the impacts of voltage spikes caused by transients.

Working Principle

Aluminum electrolytic capacitors are designed with two aluminum foil sheets separated by a sheet of paper saturating an electrolyte. When a voltage is applied across the foil planes, an electric field is created across the dielectric material and the electrolyte, forming an electrical bond between the two aluminum plates. The aluminum plates act as the capacitor plates, while the electrolyte and paper act as the dielectric material. This process is known as electrochemical oxidation.

The capacitance of an aluminum electrolytic capacitor is determined by its surface area, dielectric material, and number of layers. The capacitance can be increased by increasing the number of layers or by using a larger surface area. However, they can also be very large and bulky due to their design, which can be a problem for space-restricted applications.

Aluminum electrolytic capacitors are highly reliable due to their long lifespan and high tolerance to temperature. They have long lifespans due to the strong dielectric properties of the electrolyte, which is resistant to degradation, and the ability to handle large amounts of current. They also have a higher tolerance to temperature, making them suitable for use in extreme conditions.

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