ALS30A103NT400

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Aluminum Electrolytic Capacitors have various types and are commonly used in practical applications. As one of the most common types, ALS30A103NT400 has wide application field and its working principle is also relatively easy to understand.

ALS30A103NT400, also known as low impedance long life electrolytic capacitor, belongs to the Aluminum Electrolytic Capacitor series. It is constructed of an aluminum foil that is used as the anode, with an etched surface. An oxide film is formed on the anode foil. The anode is then rolled up with a separator and soaked in electrolytic liquid. The cathode is an electrically conductive piece of metal. The two ends of anode and cathode are connected to the two lead wires, and then encapsulated with resin filled with high gas-proof performance. The rated capacitance of the cap mainly depends on foil area, while its voltage rating mainly depends on the thickness of the oxide film.

As for its application field, ALS30A103NT400 is mainly used in AC equipment, electric energy meters, television receivers, electric vehicles, etc. It also has wide applications in computers and microelectronics, which requires low impedance. In addition to that, ALS30A103NT400 is used as a safety device to suppress surge voltage in many home electronics, like air conditioners, electric tool, photocopiers, etc.

As for its working principle, the oxide film on the anode of ALS30A103NT400 has multiple layers with different dielectric constants, thus it works as several capacitors in series, and the combined capacitance is relatively higher than the single capacitance. Moreover, the oxide film on the anode foil highly determines the stability of the capacitor, so the process of oxide film formation of ALS30A103NT400 has to be strictly controlled.

Apart from that, the electrolyte also has an important role in the performance of ALS30A103NT400 capacitor. The electrolyte will react and form a silicate film at high temperature, prompting the capacitor to rise in impedance. Moreover, the electrolyte may be easily corroded by external environment and aging of the electrolyte will thus cause a decrease in capacitance. Hence the mixture of the electrolyte, usually various organic solvents, is also an essential factor in the performance of ALS30A103NT400.

In short, ALS30A103NT400 is one of the most common types of Aluminum Electrolytic Capacitors, and is often used in various applications like computers, electric energy meters, and home electronics. Its working principle mainly relies on both the oxide film on the anode foil and the mixture of electrolyte. By understanding ALS30A103NT400 Aluminum Electrolytic Capacitor, engineers can make appropriate and accurate selections according to different requirements.

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