400TXW120KEFC16X45

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Aluminum electrolytic capacitors are widely used in electronic applications such as decoupling or filtering, and power factor correction (PFC). The 400TXW120KEFC16X45 is a very popular aluminum electrolytic capacitor in particular. It couples great performance with cost-effectiveness, making it an ideal choice for many electronic projects.

An aluminum electrolytic capacitor consists of an aluminum foil anode with an oxide layer on its surface, a liquid electrolyte, and a wound paper separator containing an organic solid-electrolyte. The oxide surface acts as a dielectric and is polarized electronically by the applied voltage. A thin layer of liquid electrolyte forms the contact between the anode and the organic solid-state electrolyte, and conducts electrons and ions between the electrodes.

The 400TXW120KEFC16X45 aluminum electrolytic capacitor offers excellent load carrying capacity due to its low equivalent series resistance (ESR). It provides an operating temperature range of –25°C to +105°C and up to 10,000 hours of life expectancy. The 450V rated voltage allows it to serve a wide range of applications.

The main application field of the 400TXW120KEFC16X45 aluminum electrolytic capacitor is in the switching power supplies. It is used to store energy and provide extra capacitance when needed to meet the power demands. It can also be used as a snubber circuit in a power supply circuit to reduce the stresses on the switching transistors and minimize the voltage spikes created by the instantaneous changes in the load current. The 400TXW120KEFC16X45 is also ideal for use in general-purpose filter and decoupling circuits. It can minimize noise generated in high-speed logic circuits, and can provide bypass capacitance for use with regulating circuits.

The working principle of the 400TXW120KEFC16X45 aluminum electrolytic capacitor is based on the principle of electrochemical double-layer capacitance. When a voltage is applied to the aluminum foil anode, charge carriers (electrons and ions) are transferred between the aluminum foil and the organic solid-state electrolyte. This electrochemical reaction creates an electric field between the electrodes, with stored charge is separated by the dielectric. The stored charge in the capacitor increases with increasing voltage, until a prescribed voltage limit is reached.

The 400TXW120KEFC16X45 aluminum electrolytic capacitor provides excellent performance in applications such as voltage regulation, energy storage, and filter and decoupling circuits. Its ability to handle a wide range of temperatures and up to 10,000 hours of life expectancy makes it an ideal choice for many types of electronic projects.

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