199D474X9035A2V1

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Tantalum capacitors are an important category of electronic components. They have low equivalent series resistance (ESR) and high capacitance per unit volume. They are mainly composed of tantalum oxide, tantalum pentoxide and other dielectric materials. The symbol of tantalum capacitor is 199D474X9035A2V1.

Application Field

Tantalum capacitors have a wide range of applications. They are primarily used in fields where high capacitance and volume is needed, such as integrated circuits, computer products, electronic watches, high-precision instruments and various electronic equipment. Furthermore, they are used to store electrical energy in energy storage devices, make up for the energy deficiency of the system, reduce ripple voltage and filter interference in the circuit.

Working Principle

The basic principle of a tantalum capacitor is similar to that of an ordinary capacitor. It is composed of two metal plates (positive and negative respectively), a dielectric medium (tantalum oxide, tantalum pentoxide, etc.) and a housing. When a direct current passes through the capacitor, a space charge layer is generated at the interface between the two metal plates, with the positive plate attracting electrons and the negative plate attracting voids, forming the electric field and the dielectric polarization of the capacitor. The electric field effect of the tantalum capacitor depends on the capacitance of the media, which can absorb and store electricity.

The working principle of tantalum capacitor is also related to its temperature. When the temperature is low, the performance of the tantalum capacitor is not good, and it will cause a significant increase in its equivalent series resistance (ESR). At high temperature, the heat will accelerate the aging of the capacitor and make the performance worse. It is important to note that the electrical stability of tantalum capacitors at high temperature is not as good as other types of capacitors.

Tantalum capacitors have many advantages, such as small size, high capacitance density and low equivalent series resistance. They are ideal components for applications requiring high capacitance, low loss and small size. They are widely used in various electronic equipment.

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