T520V157M004ATE007

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Tantalum - Polymer Capacitors:T520V157M004ATE007

Tantalum - Polymer Capacitors has been developed by American KEMET Corporation, which is a long history mature multinational company with development, production and sales of rubber, polymer and liquid electrolyte capacitors. Since its introduction, the T520V157M004ATE007 has become one of the most important devices for the application market.

Application Field

The capacitor is mainly used for bypass and decoupling applications due to its higher capacitance value and good frequency characteristic, which is suitable for those circuits that need compensated charges quickly. Due to its small space and lightweight characteristics, it is also suitable for desktop computers, laptop computers, set-top boxes and other multimedia applications. In addition, by lowering ESR, the capacitor can also improve the switch power supply system, rectifier filter and power IC performance.

Working Principle

The tantalum - polymer capacitors utilizes a special tantalum powder or sintered tantalum anode (electrode). The gel electrolyte fills the empty hole in the anode without any corrosion or evaporation and form an electrolyte membrane. The electrolyte is a conductive polymer with a polymer-ceramic structure filled with a conductive additive. The conductive additive, reactive ionomers and their mixtures form the internal electrodes and polymer electrolyte. The resulting dielectric properties and capacitance stability are improved due to the combination of two different materials.

The polymer metal capacitor has the same working principle as other aluminium electrolytic capacitors. When the external voltage is applied, the capacitor is charged and polarized. The charge is stored in the capacitor dielectric. When the external current passes, the capacitor provides current and voltage.

Features

The tantalum - polymer capacitors are mainly characterized by their large capacitance and voltage values, small size, good frequency characteristics, high reliability and temperature compensation effects. Its small size and lighter weight indicate that it has potential for the development of miniature applications. The polymer-ceramic structure and the filling of conductive additives increase the dielectric properties and capacitance stability of the electrolyte relative to ordinary electrolytic capacitors.

Conclusion

The T520V157M004ATE007 capacitor is widely used in desktop computers, laptop computers, set-top boxes, multimedia applications and other fields. Its small size and lighter weight, along with its larger capacitance and voltage values make this capacitor an ideal choice for its application.

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