T491D475M050AT4380

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Introduction about Tantalum Capacitors

Tantalum capacitors, also known as tantalum electrolytic capacitors, are capacitors that use tantalum as the anode. It uses an electrolyte of MnO2 as a cathode electrode. It is a polarized capacitor because it has polarizations on the two electrodes. Since the surface reaction area of ​​the tantalum anode is large, the anode of the tantalum capacitor has a high density, that is, the capacitance per unit volume is high, but the voltage resistance is relatively small, and the capacitance decreases with the increase of capacitance. Voltage.

Tantalum capacitor is widely used in smart phones, electric bicycles, digital cameras, electronic products, circuit boards, etc.

T491D475M050AT4380

T491D475M050AT4380 is a high voltage, SMD type surface mount tantalum capacitor with a capacitance of 4.7uF and a rated voltage of 50V. It is made of a solid encapsulated construction with X7R dielectric, ideal for all high volume commercial applications where high capacitance is required, like DC-DC converter, high frequency rectifiers, protective circuits, energy storage, etc. It also has excellent electrical characteristics, like high insulation resistance, high surge capability. It also provides a suitable combination of low ESR and high stability.

Application field and working principle

T491D475M050AT4380 can be used in a wide range of electronic products, including DC-DC converters, rectifiers, energy storage, frequency tracking and ESD protection. DC-DC converters convert low-frequency DC power into high-frequency AC, and then back to low-frequency DC power. It helps to reduce the size of the circuit, and also can be used to reduce the weight of the circuit. The rectifiers are used to convert AC into DC by blocking the alternation direction. This type of capacitors are also widely used for energy storage in small systems like radar, sonar and communication.

T491D475M050AT4380 working principle is similar to other capacitors, where electrical charge is stored in the dielectric layer formed by the tantalum anode and the cathode of MnO2 electrolyte. When the capacitor is connected to a DC voltage source, the cathode will store negative charges and the anode will store positive charges. In this way, the capacitor will stores and releases electrical energy, and thus achieve its purpose in the circuit.

Conclusion

T491D475M050AT4380 is a surface mount tantalum capacitor with a capacitance of 4.7uF and a rated voltage of 50V. It has a variety of applications, such as DC-DC converters, rectifiers, energy storage, etc., and is ideal for all high-volume commercial applications, such as Radar, Sonar and communication systems, where high capacitance is required, and it also has excellent electrical characteristics, such as high insulation resistance and high surge capability. Its working principle is to store and release electrical energy, thus helping to reduce the size and weight of the circuit.

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