B41043A4476M

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Aluminum electrolytic capacitors consist of aluminum foil, electrolyte and paper separator wound into a can. B41043A4476M capacitors are typically used in the power supply systems of computers, household electronics, and televisions. These capacitors are highly reliable, with a capacitance range of 47000 mF, an operating temperature ranging from -40°C to +105°C and lifetime of up to 2000 hours 220°C.

The working principle of aluminum electrolytic capacitors is that when a current flows through the electrolyte, aluminum ions on the surface of the anode are ionized and electroplated onto the anode foil, forming a compact, uniform, and highly conductive aluminum oxide film on the surface of the aluminum foil. This forms a barrier that prevents the metal ions in the electrolyte from passing through. The two oppositely charged poles thus form an electric field between the plates, allowing electrons to flow between the two poles. This is essentially how an electric capacitor is constructed.

The capacitor is designed such that the aluminum foil acts as the anode and the paper separator acts as the cathode, forming a charge storage element. The capacitance is determined by the size of the anode foil, the number of layers, the spacing between the anode and cathode, and the type of electrolyte used. The resistance of the capacitor is determined by the length and width of the anode foil, the thickness of the oxide film, and the type of electrolyte used.

The construction of the capacitor also has a great effect on its performance. B41043A4476M capacitors use an electrolyte composed mainly of MnO2 and ethylene glycol, which provides excellent charge transfer rate for high temperature applications. The structure of the capacitor is designed with a large cross-sectional area for stable operation at high voltage. The anode and cathode plates are wound around a metal case that provides electrical insulation and thermal dissipation.

B41043A4476M capacitors are typically used in applications such as voltage stabilization, smoothing, power supply filtering, feedback amplifiers and regulators, signal processing or other filter circuits. These capacitors have excellent low noise characteristics and excellent surge current capability, making them suitable for high current applications. They also have a long lifetime and low voltage dependency.

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