101C284U040DN2D

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Aluminum electrolytic capacitors are a type of capacitor that utilizes an electrolyte, typically acidic, to form a passive component and provide good capacitance per occupied volume. One variant uses a porous anode that forms a porous layer of oxide that acts as the dielectric for the capacitors and whose anode surface area influences the capacitance. The anode and cathode are typically formed of aluminum foil whereas the dielectric is formed of a solution of sulfuric acid of varying concentrations. The most common application of aluminum electrolytic capacitors is power filtering in high voltage power supplies.

The 101C284U040DN2D aluminum electrolytic capacitor is widely used in various applications, such as switching power supplies, motor drives, and LED driver systems. Its capacitance is 40 μF ±20% at rated voltage of 450V AC. In addition, it has a high surge capability and low equivalent series resistance (ESR).

Its working principle is based on the capacitance generated by two aluminum foil electrodes that are separated by a dielectric. Aluminum was chosen as the electrodes material because it is cheap and has good conductivity. An electrolyte is used to guarantee that the dielectric is polarized, with ions positioned on the aluminum layer and creating a charge separation.

The two aluminum layers serve as the two plates of an electrochemical capacitor, and the electrolyte serves as a polarized dielectric, which induces the buildup of opposite charges and stores electric energy. The capacitance is strongly influenced by the distance between the two layers of aluminum, the quality of the electrodes, and the characteristics of the oxide layer formed on the surface of the aluminum.

In conclusion, the 101C284U040DN2D aluminum electrolytic capacitor is a reliable device which is widely used in various electronic applications, such as switching power supplies, motor drives, and LED driver systems. This device utilizes an electrolyte, typically acidic, to form a passive component and provide good capacitance per occupied volume. The two aluminum layers serve as the two plates of an electrochemical capacitor and the electrolyte serves as a polarized dielectric, thereby inducing and storing electric charge.

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