EKMH800VNN222MQ35W

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Aluminum electrolytic capacitors, such as the popular EKMH800VNN222MQ35W, are a type of capacitor that uses an electrolyte along with a porous anode in order to increase its capacitance. A dielectric barrier separates the two components, enabling electrolytic capacitors to store significantly more charge than standard capacitors. These components are commonly found in power supplies, consumer electronics, and industrial applications.

The EKMH800VNN222MQ35W is a long life, high temperature aluminum electrolytic capacitor. It has a rated voltage of 800V, a tolerance of ±20%, and offers a capacitance range of 2.2uF - 35uF. The operating temperature range is -40°C to +105°C, and has a maximum ripple current of 1.4A at 105°C. The EKMH800VNN222MQ35W is perfect for high-voltage applications that require a long-term reliability and durability.

The working principle behind aluminum electrolytic capacitors is based on electrolytic action between two metallic electrodes on either side of a dielectric barrier. Electrolytic action occurs when a chemically active electrolyte interacts with the electrodes. The positive electrodes consists of a metal plate that is coated in a very thin layer of an oxide film. This film serves as the dielectric barrier and it breaks down when electric current passes through it. When voltage is applied to the capacitor, the electrons from the anode build up in the oxide layer, creating a positive charge. This positive charge attracts negative electrons from the cathode, which flows through the element and is stored in the oxide layer.

This electrical energy is then stored in the form of a charge backplate between the electrodes. As current flows through the capacitor, the two plates develop an electric field, which stores the charge on the electrodes. Since the oxide layer offers higher resistance to electric current, it acts like an insulator and prevents electric current from leaking back and forth from the capacitor.

Aluminum electrolytic capacitors also offer excellent ripple current handling due to their high capacitance levels. As a result, they are often used in power supplies, consumer electronics, and industrial applications where high ripple current levels are required. Furthermore, aluminum electrolytic capacitors are lightweight, cost-effective, and are available in very large capacitance values.

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