400HXC120MEFC22X40

Aluminum electrolytic capacitors are electrochemical energy storage devices composed of an anode as aluminum foil and a cathode as an aluminum oxide film. The two sides are separated by electrolyte and a non-conductive separator. Its application field and working principle are closely related.

The 400HXC120MEFC22X40 belongs to the aluminum electrolytic capacitor family. Its application field is in low-frequency filtering, such as in TV high voltage power grids, motors, lighting, etc. It is usually used as a filter capacitor in the power circuit, which can filter out d.c and a.c interference. Its polar voltage is 400V, with capacity of 120uF, and rated maximum operating frequency of 22KHz.

The working principle of the 400HXC120MEFC22X40 is based on the electrolytic effects of the aluminum film. The aluminum foil used as the anode of the aluminum electrolytic capacitor consists of active parts, which have absorbed water molecules during the airtight of the capacitor in the manufacturing process, and a layer of simple aluminum oxide layer formed on the surface. When the 400HXC120MEFC22X40 is connected to the AC power source, the electrolyte solution produces an associated DC electric field. This field of anode partially separates the chemical bond of water molecule, producing a net repetition of water molecule and homogenizing the electron between the anode and the object of electrolytic solution. Consequently, a path of low resistance is formed and electric charge has a net flow from the cathode to the anode, resulting in the accumulation of positive charges on the anode. Theelectric charge between the anode and cathode builds an electric capacity, which helps store energy, thus achieves its job as a capacitor.

Aside from the 400HXC120MEFC22X40 model, there are many different types of aluminum electrolytic capacitors with different sizes and capacities. They are widely used in electronic equipment, allowing systems to have greater stability and longer life. Despite their low costs, aluminum electrolytic capacitors are reliable and they have become an indispensable component found in a wide range of products.