381LQ682M063K042

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Aluminum electrolytic capacitors are a type of capacitor that operates with an electrolyte, such as a liquid-filled, solid-state material. These components are also referred to as polarized capacitors. In general, they feature positive and negative electrodes, known as anode and cathode. The anode is coated with a layer of porous aluminum oxide insulator. Aluminum electrolytic capacitors are mainly used in power supply and signal filtering circuits

381LQ682M063K042 belongs to the category of aluminum electrolytic capacitors which is one of the most common and widely used capacitors today. It is a rapid-start capacitor with standard extended temperature range (E-14 series) featureing a capacitance of 680 μF and rated voltage of 63 VDC. The capacitance accuracy is ±20%, and it has a high ripple current rating of 696 mA. It has a radial lead construction and designed for snap-in mounting for reflow and wave soldering.

The working principle of aluminum electrolytic capacitors is based on Faraday\'s law of electrolysis. The capacitor is made up of two layers of aluminum foil — the anode and the cathode — separated by a layer of insulating material. The anode is coated with a layer of porous aluminum oxide which acts as the insulating material. When a voltage is applied to the capacitor, it creates an electric field between the two layers of aluminum foil. This electric field attracts ions from the electrolyte and forms an opposite electric field on the oxide layer, enabling electrons to flow through the electrolyte. Moving electrons create an electrical charge in the capacitor. This electrical charge supports the electric potential stored within the aluminum electrolytic capacitor.

Aluminum electrolytic capacitors usually have long shelf life and high dielectric strength, and they can also store capacity charge for long time. They have high ripple current rating and low cost. With a wide range of available capacitance and rated voltages, aluminum electrolytic capacitors are versatile and can be integrated into power supply systems, signal filtering systems, and audio/high-fidelity installations.

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