ELG108M100AR2AA

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Aluminum electrolytic capacitors are known for their low cost and good capacitance and voltage parameters. Among them, the ELG108M100AR2AA has a wide range of application fields, particularly in high temperature work environment. In this article, we are going to discuss about its application field and working principle.

The ELG108M100AR2AA, firstly, is designed for power supply applications that require high temperature tolerance level as well as long lifetime. With its constructive technology and material advantages, this special type of aluminum electrolytic capacitors can easily withstand extreme temperatures as high as 170°C while remaining fully operational; whereas the ordinary models may reach the breakdown temperature at only 105°C. It is therefore suitable to be equipped in the systems that are prone to high temperature, such as welding and soldering systems.

Besides, the ELG108M100AR2AA is suitable for general electronic applications, such as in switchboards, transceivers, antenna matching, measuring and controlling systems for power plants, and so on.

As for its working principle, the ELG108M100AR2AA is basically composed of two aluminum foils with an oxidized electrolyte gangue in between. This gangue is presumed to be an electric insulator. Three solid electrodes, known as anode, cathode and center tab, are held together at the edge in an arrangement named capacitor lay-out. The function of these electrodes is fairly simple: they allow current to flow respectively in and out of the capacitor.

During the functioning of this capacitor, when placed in a circuit between two terminals A and B, one of the terminals, say B, will be grounded which serve as the reference point. Then electric current will flow into terminal A, accounting for its application. Currently, the current will pass through the oxidized layer and then the cathode, and then leave the capacitor by the anode, eventually reaching the grounded terminal B.

The potential difference between A and B, together with the dielectric strength of the oxidized layer, will determine the amount of current that flow into the capacitor. The surface area of the oxidized layer will determine the capacitance. This is how the ELG108M100AR2AA work to produce capacitance.

To conclude, the ELG108M100AR2AA is a special type of aluminum electrolytic capacitors with a wide range of application fields and its working principle depends mainly on the potential between two terminals and the dielectric strength of the oxidized layer. This capacitor is ideal for systems that require a high temperature tolerance level.

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