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Aluminum Electrolytic Capacitors

EXV477M016S9PAA is an aluminum electrolytic capacitor belonging to the EVX series. This series of capacitors provide better heat radiation and ultra-long life 10.000 hours with 10,000 hours at 85>C. It also provides better performance against thermal humitity and solder reflow induced moisture.

Application Field

EXV477M016S9PAA has been designed to meet the increasing demand for high reliability capacitors with lower impedance and long life. For this reason, EXV477M016S9PAA capacitors are widely used for applications in power supplies, medical and safety equipment, computer motherboards, DC-DC converters for avionics applications, industrial automation and control.

Working Principle

EXV477M016S9PAA is an aluminum electrolytic capacitor, a type of electrolytic capacitor containing two aluminum plates, held apart from one another by a separator containing an electrolyte. When an electric field is applied across the capacitor plates, an electric double layer is formed on the surface of each plate, consisting of ions of the electrolyte solution and adsorbed molecules on the surface. This process allows charge to accumulate on the plates as electrons are transferred between them. The amount of charge stored is determined by the plate area, the distance between the plates, the conductance of the electrolyte solution, the voltage, etc.

An electrolytic capacitor also has an equivalent series resistance (ESR), which represents the resistance experienced by electrons when flowing from one plate to the other. This contributes to the capacitance of the capacitor and affects its overall performance. EXV477M016S9PAA is designed to provide high reliability and low ESR in order to guarantee stable performance in tough environments.

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