199D474X0035A2V1E3

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Introduction

Tantalum capacitors are capacitors that use tantalum as the anode material. They are most commonly used as a bypass capacitor, because of their high capacitance, high-temperature stability, long life and lead-free (RoHS compliant) construction. The code "199D474X0035A2V1E3" indicates the capacitor\'s value and other specifications.

Application Field

Tantalum capacitors are widely used in many electronics applications due to their low ESL/ESR, high DC voltage stability, and long life. Most commonly, they are used for bypass applications or decoupling applications, where their high capacitance and low ESL/ESR help voltage regulation and noise reduction. They can also be used for high-temperature applications, such as the automotive industry, as well as low-temperature applications, such as those in aerospace and medical devices.

Working Principle

Tantalum capacitors are constructed from two electrodes separated by dielectric material. The anode is made of tantalum, which provides a very large capacitance for a given size. The cathode is usually made of either an organic material, such as activated carbon or oil, or an inorganic material, such as MnO2. A layer of insulating material is usually applied to the top of each electrode to reduce the risk of electric shock.

When a voltage is applied to the capacitor, the positive charges will be attracted to the anode, while the negative charges are attracted to the cathode, creating a charge and a current. As the voltage is increased, more charges are attracted and the capacitance increases. When the capacitor is discharged, the charges reverse, causing a current to flow in the opposite direction. This current is used to measure the capacitance of the capacitor.

Conclusion

Tantalum capacitors are a type of capacitor that uses tantalum as an anode material, and are commonly used for bypass applications, voltage regulation, and noise suppression. Their high capacitance, high-temperature stability, and low ESL/ESR make them attractive for use in a variety of electronics applications.

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