ESMG251ELL2R2MF11D

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Aluminum electrolytic capacitors (AECs) are popular electronic components primarily used as energy storage devices. They come in a variety of sizes, shapes, and shapes and capacities and are made from a variety of materials. Among these, the most commonly used is ESMG251ELL2R2MF11D. In this article, we will discuss its application field and working principle.

Application field

ESMG251ELL2R2MF11D aluminum electrolytic capacitors are widely used in a wide range of applications such as high-temperature power supplies, high-frequency circuits, high-stability circuits, hybrid circuits, analog circuits, switching circuits, and filters. The capacitor is also used in power supplies, automotive circuits, medical equipment, and various types of electronic equipment. The long service life, low equivalent series resistance, high capacitance, and reasonable prices of these capacitors make them excellent choices for most applications that require reliable energy storage devices.

Working principle

ESMG251ELL2R2MF11D aluminum electrolytic capacitors are based on a fundamental principle called electrolytic capacitance. This refers to a capacitor that utilizes the electrolyte by passing an electric current through it which creates an electric field between the two plates. When a voltage is applied, the plates of the capacitor create a field of negative charge on one side and a field of positive charge on the other, resulting in the charge separation. This charge separation allows for a very high capacitance with a large area of the capacitor surface area being affected.

In an electrolytic capacitor, the two plates are coated with an oxide film. This is important as it acts as an insulator between the two plates, preventing current from flowing from one plate to the other. The negative plate is immersed in an electrolyte and the positive plate is insulated from it. When external electric current is applied, ions start to migrate from the negative plate to the positive plate. These ions become trapped in the oxide layer, creating a layer of capacitance.

The thickness of the oxide film determines the amount of capacitance in the capacitor as the more ions that become trapped, the higher the capacitance. The capacitance increases with a larger area of the capacitor surface and with a higher voltage applied. The higher voltage increases the force of attraction of the ions which increases the thickness of the oxide film.

In addition to the capacitance created by the trapped ions, the capacitor also stores energy from the electric field generated between the two plates. This energy is stored as electrostatic energy which is released when the electric field is disrupted by either a decrease in the voltage or a change in the shape of the capacitor plates. This stored energy is then used to power circuits.

Aluminum electrolytic capacitors are typically rated by the amount of energy that can be stored in them. For the ESMG251ELL2R2MF11D, the rated capacitance is 100uf. This indicates the amount of electrical energy that can be stored in the capacitor for a given voltage. The electric current capacity is limited due to the size and construction of the capacitor.

In conclusion, the ESMG251ELL2R2MF11D aluminum electrolytic capacitors have a wide range of applications. The long service life, low equivalent series resistance, high capacitance, and reasonable prices make them excellent choices for most applications that require reliable energy storage devices. Additionally, the working principle of the capacitor is based on the principle of electrolytic capacitance whereby the two plates are coated with an oxide film creating a layer of capacitance due to trapped ions. This layer of capacitance, combined with the electric field generated between the two plates, allows for a very high capacitance and the ability to store electrical energy effectively.

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