T86E686M020EASS

Tantalum capacitors, or Ta caps, are some of the most popular and widely used capacitors in the world today. They are used in a wide range of applications due to their excellent characteristics such as low profile, high capacitance, high temperature, extended lifetimes, and robustness for various applications. The T86E686M020EASS is an example of a high-performance tantalum capacitor. This article will discuss the application field and working principle of the T86E686M020EASS.

Application Field of T86E686M020EASS

The T86E686M020EASS is a medium-sized, surface-mountable tantalum capacitor that is designed for use in space-limited applications. It is suitable for use in a variety of power electronic circuits, including DC-DC converters, voltage regulators, and switch mode power supplies. Additionally, it can be used in audio amplifiers, automotive electronics, and mobile phones. Its high temperature and reverse polarity performance makes it an ideal choice for automotive applications where operational safety is paramount.

The T86E686M020EASS also has a wide range of electrical characteristics that make it suitable for different types of applications. Its maximum working voltage is 16V, while its rated voltage is 6V. Its capacitance range is from 6.8μF to 20μF, while its ESR and ripple current resistance are 0.9 ohm and 1.6A, respectively. Finally, its temperature range is -55°C to 125°C.

Working Principle of T86E686M020EASS

The T86E686M020EASS is an electrolytic capacitor that uses tantalum as its anode material. The tantalum anode is connected to one of the two leads. A dielectric is formed by a thin layer of conducting oxide, and the counter-electrode is a thin layer of an electrolytic solution in contact with the other lead. This electrolyte holds the free electrons and forms the electric charge, allowing an electric current to flow from the anode to the cathode.

When the capacitor is connected to an external power source, the lead connected to the anode becomes positive. This polarizes the dielectric, and an electric field is generated between the anode and the cathode. This electric field provides the capacitance of the device. As the voltage of the external power source increases, the capacitance and size of the electric field also increase.

The dielectric oxide layer also provides a barrier between the anode and the cathode. This prevents the electrolyte from leaking out of the capacitor and helps maintain the capacitance of the device over time and temperature. This makes the T86E686M020EASS ideal for applications in which long-term stability and low leakage current are important.

Conclusion

The T86E686M020EASS is a high-performance tantalum capacitor that is suitable for use in a variety of power electronic circuits, including DC-DC converters, voltage regulators, and switch mode power supplies. It is also ideal for automotive applications due to its high temperature and reverse polarity performance. Its working principle is based on the electric field created between the anode and the cathode, as well as the dielectric oxide layer that prevents leakage current. This makes it an excellent choice for applications in which long-term stability and low leakage current are important.