450QXW82MEFC14.5X35

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Aluminum electrolytic capacitors (AECs) are a type of electrolytic capacitor that uses aluminum oxide as a dielectric, which is then held between two thin metallic conductors known as anodes. AECs, which are the most commonly used type of capacitor for power applications, are also used for signal transmission and voltage suppression/filtering. This article will discuss the application field and working principle of a 450QXW82MEFC14.5X35 AEC.

AECs are most commonly used in high-power output circuit applications, such as power supply lines, charging circuits, motor drive circuits, etc. A450QXW82MEFC14.5X35 AEC is rated for a capacitance of 420µF, voltage of 63V, and an operating temperature range of -40°C to +85°C. This makes it suitable for a wide variety of power applications, such as switching power supply circuits and motor drive circuits.

The key to an AEC’s function is the layer of aluminum oxide that is formed between the two anodes when the capacitor is subjected to a reverse voltage. This thin layer of aluminum oxide acts as the dielectric, which makes the capacitor able to store and release energy. The aluminum oxide layer is created through an electrolytic process in which the two anodes are immersed in an electrolyte solution, usually a mixture of water and sulfuric acid. This process causes ions to migrate and form the layer of aluminum oxide.

The physical structure of AECs also contributes to their operation. The anodes and electrolyte are sealed within a cylindrical or rectangular body with terminals at either end. This allows current or voltage to pass between the anodes through the dielectric layer. The terminals are also designed to ensure a secure electrical connection between the capacitor and other components in the circuit.

The operation of AECs is relatively simple. When the capacitor is not in use, the two anodes are held apart by the layer of dielectric, which prevents the flow of current through the capacitor. However, when a voltage is applied across the two anodes, the layer of dielectric reduces the voltage, allowing current to flow and storing the electrical energy in the capacitor.

The stored energy can then be released when the voltage across the two anodes drops below a certain level. As the capacitor discharges, the anodes are pulled together, eventually causing the dielectric layer to break down and allowing current to flow. This process creates an electric field between the two anodes and the layer of dielectric, which then causes the dielectric layer to reform.

In summary, AECs are used in a variety of applications due to their ability to store and release energy. A 450QXW82MEFC14.5X35 AEC is rated for a capacitance of 420µF, voltage of 63V, and an operating temperature range of -40°C to +85°C, making it suitable for applications that require high-power output. The operation of AECs is based on the formation of a layer of aluminum oxide between the two anodes, which acts as the dielectric, allowing current to be stored and released from the capacitor.

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