LLS2E181MELY

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Aluminum electrolytic capacitors, also known as ‘tantalum’ capacitors, are non-polarized, cylindrical, electrolytic capacitors that uses a very thin anodic oxide coating on an aluminum foil roll and a solid liquid electrolyte to achieve the desired capacity. The combination of materials provides a large impedance and high energy density, making these capacitors ideal for applications that require a lot of power in a very limited space.

LLS2E181MELY is a series of lightweight, low-profile, surface mount aluminum electrolytic capacitors from KEMET. These capacitors are designed with a long lifetime, high capacitance, low leakage current and no noise, making them perfect for applications where performance is of paramount importance. Typical applications include power modules and control systems, DC-DC converters, motor drives, bridge rectifiers and switch mode power supplies.

The key components of an aluminum electrolytic capacitor are the two aluminum plates - the anode and the cathode. The anode is a thin metallic foil coated with an organic film, which acts as a dielectric. The cathode is a separate piece of aluminum foil with a thicker oxide layer, which serves as an electrical conductor. When an appropriate voltage is applied, current flows between the two foil layers, creating an electric field and storing electrical energy.

The working principle of the aluminum electrolytic capacitor is based on the flow of electric current. A voltage is applied across the anodic oxide coating and the electrolyte, which then starts to act like a dielectric and stores electrical energy in the form of a charge. This stored energy creates an electric field between the anode and the cathode, which increases the capacitor\'s capacitance, allowing it to store more energy. The leakage current, on the other hand, is created as ions are attracted to an anode by the electric field.

The working principle of aluminum electrolytic capacitors is fairly simple and easy to understand. In addition, these capacitors can be made very small and lightweight, making them ideal for a number of different applications. Furthermore, they have a long lifetime and can handle very large amounts of power in a very small space. For all these reasons, aluminum electrolytic capacitors are commonly used in a number of different applications, including power modules, DC-DC converters, motor drives, bridge rectifiers and switch mode power supplies.

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