EKXL421ELL270MK20S

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors, commonly known as aluminum capacitors, are one of the most widely used capacitors today. They consist of two aluminum foils with an electrolytic paper in between as electrodes. The anode foil is treated with an anodizing process to form an insulating layer of aluminum oxide (Al 2 O 3) on its surface, allowing the electrolyte to be absorbed while providing an electrical insulator between the anode and cathode electrodes. The cathode is typically made from a film of metalized paper that acts as a current collector for the capacitor\'s foil. Different electrolytes can be used, depending on the needs of the capacitor.

EKXL421ELL270MK20S is a type of aluminum electrolytic capacitor. It is a miniature solid electrolytic capacitor, with a capacitance of 4.7 μF and an operating temperature range of -25℃ to +85℃. It has a maximum ripple current of 360mA and a 0.25Ω ESR (Equivalent Series Resistance).

Application Field of EKXL421ELL270MK20S

The EKXL421ELL270MK20S can be applied to various circuits. It is widely used in signal crossovers, clock signal stabilization, AC adapter and DC power supply applications, as well as digital and analog circuits, and so on. As a low-impedance capacitor, it is especially suited for use in high frequency, high current applications.

Working Principle of EKXL421ELL270MK20S

The basic working principle of the EKXL421ELL270MK20S can be broken down into three major parts: charge transfer, capacitance, and discharge. In the charging process, an electrical current passes between the capacitor\'s two electrodes, allowing the capacitor to accumulate an electrostatic charge. During the capacitance phase, the capacitor behaves as if it were an independent voltage source. This is because the anode and cathode forms a pair of conducting plates separated by an insulator, which affects the electric field. Finally, during the discharge process, the excess charge is discharged from the capacitor, and the voltage across the capacitor returns to zero.

In summary, the EKXL421ELL270MK20S is a versatile aluminum electrolytic capacitor, capable of meeting the demands of many high frequency, high current circuits. Its low impedance and wide temperature range make it perfect for those difficult applications. With its many advantages, the EKXL421ELL270MK20S is the ideal choice for power supply, crossover, and other type of circuits.

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