T540B107M003AH8710WAFL

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Introduction

Tantalum - Polymer Capacitors use liquid tantalum cathodes and a mixture of polymer electrolyte and liquid solution as their dielectric medium, which are used in various applications. The capacitor is marked with T540B107M003AH8710WAFL. In this application field and working principle of the capacitor is discussed.

Construction

Tantalum - Polymer Capacitors consist of a metal oxide semiconductor, a liquid electrolyte, a plastic film and metallic or plated metallic contact clips. The liquid electrolyte is a mixture of nickel oxide and cobalt oxide in a plastic or organic solution. The contact clips are of copper or plated copper and are firmly attached to the oxide semiconductor and the plastic film.

Features

The main features of tantalum - polymer capacitors are that they have small dimensions, low ESR, low leakage current, high capacitance and good impedance characteristics. Due to their small dimensions, they can be installed in very tight places and produce high capacitance values. Additionally, the capacitor exhibits low ESR, providing a constant impedance even at high frequencies. It also has a low leakage current, meaning that it’s less likely to dissipate heat.

Applications

The tantalum - polymer capacitors are used in a wide range of applications, such as integrated circuit (IC) decoupling, resonator and sensing circuits, switching power supplies, audio and video amplifiers, digital signal processing (DSP) applications, automotive applications and LCD displays. Its small size and high capacitance make it suitable for decoupling capacitors in ICs. The high capacitance also makes it ideally suited for high-frequency applications, as it can maintain a low impedance at high frequencies.

Working Principle

The working principle of the tantalum - polymer capacitors is based on the principles of capacitance. When an electric field is applied between the two contacts of the capacitor, the electrons from one contact diffuse to the other contact and creates a negative charge, while the ions in the liquid electrolyte migrate to the positive contact to reduce its charge. This creates a separation of charge between the two contacts and produces a reactive energy storage mechanism. Thus the capacitor stores energy as a charge and discharges it when the applied electric field is removed.

Conclusion

In conclusion, the T540B107M003AH8710WAFL capacitor belongs to the tantalum - polymer capacitor category and is used in various applications due to its small size and high capacitance. The capacitor works on the principle of capacitance, and its main features are small dimensions, low ESR, low leakage current, high capacitance and good impedance characteristics.

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