TCA1C475M8R

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Tantalum Capacitors

Tantalum capacitors are a type of electrolytic capacitor, which are widely used and are smaller than other types of capacitors. They are usually made of a powder of tantalum and other materials. Tantalum capacitors are typically used in applications where stability, reliability, and high-frequency stability are important.

TCA1C475M8R Application Field

TCA1C475M8R is a type of surface mount electrolytic tantalum capacitor widely used in various applications. It can be applied to high-frequency circuits and long life high reliability circuits. The key features of TCA1C475M8R include low ESR, low self-inductance, high volumetric efficiency, and excellent resistance to vibration and shock.

TCA1C475M8R can be used in high-temperature applications, such as automotive electronics, medical devices, and instrumentation. It is also widely used in communication, consumer electronics, and industrial equipment. It can be used for coupling, decoupling, bypass, and filtering. The wide capacitance range and high capacitance value make it suitable for power supplies, battery terminals, and other circuit applications.

TCA1C475M8R Working Principle

Tantalum capacitors are built on a solid dielectric layer of tantalum pentoxide between two metal electrodes, typically an anode and a cathode. The dielectric layer acts as an electrical insulator which allows electric charge to accumulate on the electrodes. In a charged tantalum capacitor, the anode is coated with a chemically active electrolyte which develops a charge if current passes through it. This charge of the anode is alternated with an opposite polarity charge accumulation in the cathode.

The capacitance of a TCA1C475M8R is determined by the thickness and surface area of the tantalum pentoxide dielectric layer. In order to increase the capacitance value, the tantalum pentoxide layer is increased in size and thickness. As the capacitance value increases, the resistance of the capacitor will also increase. This can be beneficial in some applications, such as in bypass and filtering circuits.

Tantalum capacitors also offer high reliability and low-ESR (equivalent series resistance). This is due to its high dielectric strength, low leakage current and positive temperature coefficient of capacitance, which make them a preferred choice for use in demanding applications. The low ESR also allows it to handle higher current loads than other types of capacitors.

The main disadvantage of tantalum capacitors is that they are significantly more expensive than other types of capacitors. This is due to the cost of the tantalum pentoxide layer, which is the main component in the capacitor. Furthermore, it is advised to use tantalum capacitors with a rated voltage value that is at least 5 times higher than the applied voltage in order to ensure reliability.

As such, TCA1C475M8R is a type of surface mount electrolytic tantalum capacitor which is used in various applications because of its features like high volumetric efficiency, high-frequency stability, low ESR, and excellent resistance to vibration and shock.

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