ESMG100ELL472MK25S

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Aluminum electrolytic capacitors are electronic components used to store electric energy in an electrical field. They are composed of two electrodes, usually made of aluminum, that are insulated by an electrolyte solution. The capacitors are usually cylindrical in shape and they are often referred to as “can capacitors” or “snap-in capacitors” due to their physical shape. They have a wide range of applications and are used in a wide variety of electronic designs.

The ESMG100ELL472MK25S capacitor is a cylindrical aluminum electrolytic capacitor with a rated maximum capacitance of 4700 μF and a rated operating temperature range between -40°C and +105°C. It is a snap-in type capacitor that can be snapped into place using two tabs and has a maximum voltage rating of 25V. The capacitor is often used in power supply applications, such as computer power supplies, LED lighting, and consumer electronics, and it is also used in automotive applications, such as engine computer controllers.

The working principle of an aluminum electrolytic capacitor is based on the principles of capacitance and dielectric loss. The basic principle of capacitance is the ability of an electrical device to store energy in an electric field. The capacitor’s sides are composed of two conducting polymer layers. The top layer acts as the anode, while the bottom layer acts as the cathode. The electrolytic solution between the two metal layers acts as an insulating medium. When voltage is applied to the capacitor, electric current flows through the electrolytic solution, resulting in an electric field between the two metal layers. This electric field stores energy, which is then released when the voltage is removed.

The dielectric loss is a loss of energy that occurs in the capacitor due to the leakage of electrons through the electrolytic solution. This leakage causes a drop in the stored energy, resulting in less charge in the capacitor. This phenomenon is known as “dielectric absorption”. To reduce this dielectric absorption, the capacitor’s electrolytic material must be designed with a higher resistance, which reduces the electron leakage.

Aluminum electrolytic capacitors are used in a variety of applications, including power supply, automotive, and consumer electronics. In power supply applications, aluminum electrolytic capacitors are used to store energy and filter noise. The capacitors are also used in automotive applications, such as engine computer controllers, as they provide reliable energy storage and noise filtering capabilities. In consumer electronic applications, the capacitors are used to provide stable voltage to components such as LCD displays, audio amplifiers, and LED lighting.

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