Aluminum Electrolytic Capacitors

The LGL2W391MELA50 aluminum electrolytic capacitors are widely used in a variety of power electronic applications. It is mainly used for high frequency switching power supplies, motor drives, and power supply filters.

These capacitors are built with an anodized aluminum can, an etched or punched aluminum foil anode, an electrolyte containing a solvent and an oxide film, and a foil cathode. The capacitor is hermetically sealed and its anode foil is dipped in an electrolytic solution, typically sodium chloride. It has a capacitance range of 1000 μF to 100,000 μF.

The working principle of LGL2W391MELA50 aluminum electrolytic capacitors involves the release and absorption of electric charge between two electrodes. When an external voltage is applied to an electrolytic capacitor, the anode is polarized and establishes a non-conductive electric filed in the oxide film. This electric field makes it possible for the current to flow through the anode and move to the cathode. As electric charge accumulates on the cathode, a layer of polarized oxide film maintains a charge balance between the two electrodes, allowing the capacitor to store electrical energy.

The LGL2W391MELA50 aluminum electrolytic capacitor features a wide application range and a wide temperature range (-55°C ~ +125°C). They have a fast charging and discharging capacity as well as low equivalent series resistance (ESR) and low internal impedance. And with a long life and high reliability, it is a preferred choice for power electronics.

In conclusion, the LGL2W391MELA50 aluminum electrolytic capacitor is a reliable and versatile type of capacitor widely used in power electronic applications due to its wide range of applications, wide temperature range and fast charging and discharging capacity with low ESR and impedance levels.