380LQ561M180H042

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Aluminum electrolytic capacitors are a type of electrolytic capacitor which use aluminum as the anode or positive electrode and an oxide layer deposited chemically on its surface as the dielectric. Aluminum electrolytic capacitors typically have a much higher capacitance than other types of capacitors and have very broad applications in the design of electronic circuits.

The type designation of an aluminum electrolytic capacitor can appear complex, with a series of letters and numbers indicating the size, the voltage rating and other factors. For example, the product type 380LQ561M180H042 is an aluminum electrolytic capacitor with the following characteristics:

• 380: the case diameter of the capacitor, 38mm.
• LQ: the volume of the capacitor, 5.6mm square.
• 561: the capacitance in μF.
• M: the voltage rating, at 10V DC.
• 180H: the ripple current rating, at 1800mAh.
• 042: the code number of the product.

Application Field

This type of aluminum electrolytic capacitor is suitable for a host of applications including general power supply filtering, audio equipment, LCD displays, computers, communications equipment, AC and DC drivelines and other electronic products. It is widely used in circuit designs for the smoothing and filtering of AC and DC voltages. The use of aluminum electrolytic capacitors allows circuits to hold and release charge quickly and efficiently, improving the performance and stability of electronic circuits and systems.

Working Principle

The structure of aluminum electrolytic capacitors is simpler than that of other types of capacitors and therefore their size is usually smaller. The working principle is fairly simple: the capacitor is constructed of two aluminum foils, with the anode foil being insulated from the cathode foil, with the insulator being the so-called “dielectric”. The capacitor is filled with an electrolyte, usually a water-based or oil-based liquid. When a voltage is applied across the two aluminum foils, a current will flow between the two foils, forming an electric field in the liquid electrolyte. This electric field builds up electric charges on the two foils, thereby creating a capacitance between the two foils.

The capacitance of an aluminum electrolytic capacitor depends on several factors. Primarily, the thickness of the aluminum foils and the type of liquid electrolyte used. The type of aluminum foil used will also have an effect, as different types of aluminum foil have different conductivity levels. The size of the capacitor also matters, as larger capacitors are generally able to store larger amounts of electric charge.

Aluminum electrolytic capacitors are an essential component in a wide range of electronic circuits, from small circuits to large-scale power systems. They are reliable, easy to obtain, and in many cases, are the perfect solution for filtering AC and DC voltages. These capacitors have a much higher capacitance than other types of capacitors, and they are able to hold and release charge quickly and efficiently, making them ideal for applications such as audio equipment, LCD displays, computers, and communications equipment.

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