B43750A4158M003

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are two electrode, non-polarized capacitors, consisting of an aluminum foil with a layer of aluminum oxide electrolyte on one side of the electrolyte and a metal or metallized foil on the other. They are the most commonly used capacitors due to their extreme stability and reliability. The cathode is usually a foil etched with a pattern, the anode a segmented aluminum foil, and the electrolytic medium (salt) is usually an organic medium such as acetic, propionic, or benzoic acid.

B43750A4158M003

The B43750A4158M003 is a high performance aluminum electrolytic capacitor used in a variety of applications. The capacitor features a long life of up to 10,000 hours and low ESR, making it suitable for applications with high frequencies. It has a wide capacitance range from 0.0012uF to 1000uF and a high temperature range of -55 to +85°C.

Application Fields

The B43750A4158M003 can be used in a wide range of applications, including power supplies, switching regulators, LED drivers, and circuit protection, among others. It is particularly useful in applications that require high-frequency operation. It is also well suited for decoupling applications, as its low ESR allows for the regulation of high frequencies.

Working Principle

The working principle of an aluminum electrolytic capacitor is based on the separation of electrolyte molecules between its aluminum electrodes, where the electrical energy is stored. The foil and its oxide layer act as the dielectric of the capacitor, creating an electrostatic field that stores capacitance. The aluminum foils can be etched and electrically etched to give the device its desired capacitance.

When a voltage is applied, the electrolyte molecules are displaced across the two electrodes, creating an electrostatic field, which in turn creates capacitance. As the voltage changes, the capacitance changes, allowing the capacitor to filter out contaminants, reduce ripple, or regulate current flow.

The aluminum electrolytic capacitor is highly reliable and stable, making it a popular and reliable choice for a wide range of applications. It is one of the most cost-effective capacitor solutions available and provides excellent performance in high-frequency applications.

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