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Aluminum Electrolytic Capacitors

ECA-1CHG472 Application Field and Working Principle

Aluminum electrolytic capacitors are electronic components that are widely used to store electric charge. These capacitors are used in a variety of applications, including filtering, decoupling, and timing circuits. The ECA-1CHG472 is an aluminum electrolytic capacitor made by Panasonic Corporation.

ECA-1CHG472 is a 600V type radial-leaded aluminum electrolytic capacitor with a Capacitance range of 100uF to 3300uF and an operating temperature range of -25°C to 105°C. Its life expectancy is 2000 hours at 105°C and 3000 hours at 85°C. It is characterized by a very low equivalent series resistance, a low ESR at high frequencies, and a high ripple current.

The capacitance of an aluminum electrolytic capacitor is determined by the area of the conductive surface, thickness of the electrodes, and the distance between them. The capacitor has a lower ESR with larger capacitance, smaller temperature coefficient, and higher operating temperature. The ECA-1CHG472 is low ESR capacitors with high capacitance, so they are suitable for switching power supplies, where a high ripple current and a low ESR is needed.

The working principle of the ECA-1CHG472 can be described as follows: the capacitor consists of two aluminum oxide layers that are separated by an electrolyte. The anode and cathode are usually connected with a metal foil and separated by a non-conductive barrier. As the capacitor is charged, positive electrons on the anode attract negative ions in the electrolyte, creating a conductive path between the two electrodes. This creates an electric field that stores the electric charge. As the electric charge is discharged, the electric field dissipates and the electrons are attracted back to the anode, allowing the capacitor to cycle.

The ECA-1CHG472 is used in a range of applications, including computer systems, consumer electronics, automotive systems, and industrial equipment. They are used in computers to filter power supply noise, regulate voltage levels, and store charge. In consumer electronics, they help regulate current flow and reduce noise and interference. In automotive systems, they are used to provide electrical noise suppression and to store charge. And in industrial equipment, aluminum electrolytic capacitors are used to store power, regulate voltage levels, and reduce noise.

In conclusion, the Panasonic Corporation\'s ECA-1CHG472 is an aluminum electrolytic capacitor with very low equivalent series resistance, a low ESR at high frequencies, and a high ripple current. It is primarily used for filtering, decoupling, and timing circuits and is suitable for switching power supplies where high capacitance, a low ESR, and a high ripple current are required.

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