ALF20G102EP550

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Aluminum electrolytic capacitors are composed of aluminum foil, electrolyte and paper. The structure of the components features a cylindrical body, with an positive (anode) and negative (cathode) electrode. The anode is a metal alloy foil, the cathode is the aluminum foil coated with electrolyte, and the paper is the separator. The aluminum electrolytic capacitor is a polarized capacitor that uses the electrochemical reaction of its anode aluminum foil and its electrolyte to achieve its capacitance. ALF20G102EP550 is a type of aluminum electrolytic capacitor. Its application fields and working principles are discussed below.

Application Field

ALF20G102EP550 aluminum electrolytic capacitors are mainly used in switchmode power supplies (SMPS), renewable energy, industrial process controls and electrical equipment. In addition, it is also suitable for sensitive and precision equipment with extremely low-ripple requirements. The product has a wide range of voltage and capacitance parameters, with excellent AC ripple current and high temperature performance.

Working Principle

The anode of the ALF20G102EP550 capacitor consists of an aluminum electrolytic oxide and a metal alloy as a current collector. When the capacitor is energized, oxygen ions in the electrolyte move to the anode and react with the metal alloy. The newly formed oxide layer is very thin, but it still offers very high insulation resistance. The oxide layer and the aluminum cap act together as dielectric film between the anode and cathode and a capacitance is formed. When the voltage is applied, a current flows through the electrolyte layer, allowing electrons to leave the anode and enter the cathode. These electrons build up a charge in the capacitor, and the capacitance is maintained until the voltage is removed.

The ALF20G102EP550 capacitor also offers excellent operating temperature and voltage characteristics. The dielectric strength and capacitance are stable over a wide temperature range, and the self-healing and highest capacitance values are reached when the voltage applied to the capacitor is constant. This makes these capacitors a reliable choice when designing electronic devices, especially in applications where low temperature and low voltage are important.

Overall, ALF20G102EP550 aluminum electrolytic capacitors are reliable, high-performance components that offer low ripple current, excellent temperature performance and high capacitance. They are widely used in industrial, renewable energy and computer applications, and are an ideal choice for high-precision circuitry that requires low voltage and temperature capability.

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