199D476X9025E6B1E3

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Tantalum capacitors are electronic components that find use in a variety of applications. The capacitor\'s structure and working principle are based on the physical properties of a chemical element known as tantalum. Different capacitor types may be designated by various codes and markings, including the 199D476X9025E6B1E3 designator.

Tantalum Capacitors

Tantalum capacitors, also known as tantalum electrolytic capacitors, are polarized capacitor varieties that utilize semi-conducting tantalum metal as an anode. The cathode is a metal oxide material (some varieties of capacitors do not use a metal oxide). The use of tantalum metal in capacitors yields higher capacitance densities, faster charging and discharging times, and superior operating life and stability.

Application Field

Tantalum capacitors are frequently employed in applications where large amounts of energy storage are necessary in a small package size. Typical uses of tantalum capacitors include electrical filtering and decoupling, power supply, and timing in digital applications. This type of capacitor is also utilized in medical and industrial electronics and in military circuitry. Tantalum capacitors are preferred in many applications due to the superior performance of tantalum compared to other electrolytic materials. They have a low failure rate, an extremely long operating life, and are highly tolerant of temperature fluctuations and of other environmental factors.

Working Principle

Tantalum capacitors operate in a similar fashion to other capacitors: when a voltage is applied across the electrodes of the capacitor, a charge accumulates on the plates of the capacitor. This charge gives the capacitor its capacity to store energy. The amount of charge that accumulates on the plates is proportionate to the amount of voltage applied on the capacitor. Since it has two electrodes, the capacitor can be used to transfer energy from one source to another. When the capacitor is connected to a circuit, current will only flow between the two electrodes; all other components are kept in balance.

The tantalum capacitor is a polarized capacitor, which means that one of its electrodes is more negative than the other. As such, a voltage polarity must be observed when connecting it in a circuit. In other words, the most positive electrode must be connected to the most positive point in the circuit, and the most negative electrode must be connected to the most negative point. This is done to ensure proper functionality of the capacitor.

Conclusion

The 199D476X9025E6B1E3 code designates one of a variety of tantalum capacitor types, hence almost any application that requires an electrolytic capacitor could use one. However, due to their superior performance characteristics, tantalum caps often work best in applications where energy storage needs to be maximized in a small package size, electrical decoupling is necessary, power supplies need to be regulated, or timing and accuracy are critical. Tantalum capacitors offer excellent temperature and environmental tolerances, long life, and reliable performance, and they are essential components in a wide variety of today’s electronic devices.

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