ELXG451VNN221MR45S

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Aluminum electrolytic capacitors are one of the most common and widely used electrolytic capacitors. The ELXG451VNN221MR45S is a type of aluminum electrolytic capacitor composed of an aluminum cylindrical enclosure, a cathode manifold, and a tantalum pellet. The metal enclosure, which acts as the anode, is designed to withstand high temperature, vibration, and thermal shock. The cathode manifold provides electrical contacts on both sides of the case, which is used to rapidly dissipate electrical charge. The tantalum pellet provides a dielectric medium between the cathode and anode with the goal of providing a low-loss interface for the capacitor.

Aluminum electrolytic capacitors are used in a variety of applications, ranging from filtering powerlines, to bypassing signals, to decoupling supplies. The ELXG451VNN221MR45S is best suited for filtering applications. Its large capacitance and low ESR makes it a great choice for stabilizing power supplies. This particular aluminum electrolytic capacitor has a maximum reverse voltage of 45V, and a capacitance value of 220µF, making it perfect for filtering DC power. The maximum operating temperature of 105ºC also makes it suitable for use in higher temperature applications.

The working principle of aluminum electrolytic capacitors is based on Faraday\'s Law. Applying a voltage across the anode and cathode layers creates a static electric field, which polarizes the electrolyte. The polarization produces ions and electrons, which then move towards the respective poles, creating an electrostatic charge on the plates. This charge creates an electric field between the electrodes, which opposes the applied voltage, and results in reduced current flow through the capacitor. The capacitance of the device is directly proportional to the size of the electrodes, as well as the dielectric material used.

Aluminum electrolytic capacitors like the ELXG451VNN221MR45S are widely used in a variety of applications due to their low cost, reliability, and high capacitance. This particular aluminum electrolytic capacitor is specifically optimized for filtering DC power applications, making it an excellent choice for stabilized power supplies. Its low ESR ensures that current can be rapidly dissipated, and its maximum operating temperature of 105ºC ensures that it will remain stable even under high temperature conditions.

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