ALF40G681EL500

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Aluminum electrolytic capacitors are widely used in power supplies, computer motherboards, power controllers, and audio amplifiers. The ALF40G681EL500 is a common type of aluminum electrolytic capacitor. It is a high-capacitance and high-temperature electrolytic capacitor with a 4700-μF capacitance and a broad operating temperature range of -40 ºC to +105 ºC.

The ALF40G681EL500 offers excellent performance with high temperature endurance and low ESR. It is commonly used in rigorous high temperature and fluctuating environmental conditions, and is also suitable for applications with linear temperature rise. It is also suitable for applications that require reverse connection.

The working principle of the ALF40G681EL500 is based on the electrochemical reaction of aluminum and an electrolyte. Generally speaking, an electrolyte is a conductive ionic solution, and it acts as a medium to transmit electrons between the two electrodes. The electrolyte is sealed in an anoded case, and the two aluminum foil electrodes are surrounded by the electrolyte. The foil electrodes conduct electricity, but the electrolyte does not. When an electric field is applied, the electric field produces a chemical reaction at the surface of the aluminum, which causes positive aluminum ions to pass through the electrolyte and attach to the anode material. As the anode material receives more and more aluminum ions, the capacitance increases, thereby reducing the current flow.

The ALF40G681EL500 aluminum electrolytic capacitor has been used successfully in many applications, such as audio amplifiers, switching power supplies, control circuits and automotive electronics. Its wide operating temperature range and high capacitance provide reliable performance in a variety of environments.

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