EKXJ221ELL391ML50S

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Aluminum Electrolytic Capacitors, or often referred to as just Electrolytic Capacitors, are electrochemical type capacitors. They are composed of two aluminum foils, or anodes, that are either anodized and etched by electrolyte or electrolyte covered. The anodized anode has an insulating film of oxide layer which acts as the dielectric, while the other anode is electrically connected to a metallized cathode. The energy required to form the oxide layer is supplied by the electric current and provides the electrical charge necessary for a capacitor to operate.

Frequently, electrolytic capacitors have a three-digit number as a code of their main characteristics printed on the side – C18, sometimes followed by an -A, -B, -D or -E suffix letter, as in the case of the EKXJ221ELL391ML50S. In this labeling system, the first two digits denote the capacitance in microfarads and the third one stands for the voltage which the capacitor can withstand.

The EKXJ221ELL391ML50S is a Radial Leaded type, high-polarity Aluminum Electrolytic Capacitor produced by NIC Components Corp. It has a voltage rating of 50 volts, capacitance of 22000 μF, rated ripple current of 960 mA and a wide temperature range of -40 to +105 °C. This type of capacitor is commonly used in low-voltage power supplies, SMPS, inverters and general electronics applications.

When designing with Electrolytic Capacitors, the most important features to consider are ripple, leakage and life expectancy. The ripple current is the maximum AC current that the capacitor can handle continuously while maintaining its specified characteristics. The EKXJ221ELL391ML50S capacitor presents a wide operating temperature range of -40 to 105 °C and can handle up to 960 mA, providing high performance and reliable operation.

Leakage current is the current flowing in the capacitor when the applied voltage is low, such as during standby. The EKXJ221ELL391ML50S capacitor features a low leakage current, contributing to improved system longevity and performance.

Finally, capacitor life expectancy is related to the ability of the oxide film on each of the anodes to survive the alternating current components of the load currents without deterioration. This EKXJ221ELL391ML50S capacitor promises a long lifetime thanks to its high rated ripple current and temperature range.

In conclusion, the EKXJ221ELL391ML50S Aluminum Electrolytic Capacitor from NIC Components Corp is a high-polarity capacitor with excellent ripple current, low leakage current and good temperature range. It is an ideal solution for low-voltage power supplies, SMPS, inverters and general electronics applications.

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