T540D477M004BH8710WAFL

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Introduction to Tantalum - Polymer Capacitors
Tantalum – Polymer capacitors provide excellent reliability, small size, good performance and a long lifespan. These capacitors are composed of an electrolytic, tantalum metal powder core and dielectric, polymer PVDF (polyvinylidene fluoride) coating. The size of the capacitor is proportional to its rated capacitance, with the maximum rating being 60,000uF. The main application of the Tantalum - Polymer capacitor is for high-capacitance and low-impedance applications. Furthermore, due to the small size and high reliability, these capacitors are widely used in power electronics and other industrial applications.

T540D477M004BH8710WAFL Application Field and Working Principle
T540D477M004BH8710WAFL is a tantalum polymer capacitor that has a capacitance of 47uF, a rated voltage of 4V and a maximum operating temperature of 85°C. This capacitor is designed for applications requiring a low profile and low leakage current, making it suitable for digital circuits, such as mobile phone baseband processors, DC-DC converters, amplifiers, regulators and power circuits. The working principle of this capacitor is based on the same physical principle as all other electrolytic capacitors. An electrolyte is sandwiched between the two electrodes, which is used to form a dielectric layer that increases the capacitance of the capacitor. The polymer dielectric layer of the tantalum polymer capacitor provides extremely low Leakage current values, preserving the capacitance over a long period of time.

High-Reliability Advantages
Tantalum - Polymer capacitors provide excellent reliability due to the polymer dielectric layer that provides a higher operating temperature range, greater stability, and a longer life expectancy. Other reliability advantages include:

• Thin profile and low-profile design – These capacitors are packaged in a small footprint, allowing for more efficient use of space.
• High capacitance values – The higher capacitance of the tantalum - polymer capacitor allows for greater storage capacity, improved frequency response, and increased power performance.
• Excellent leakage current – A polymer dielectric layer provides the lowest leakage current of all capacitor technologies, making it suitable for use in high-impedance and low voltage applications.
• Robust construction – Tantalum – Polymer capacitors are constructed from a robust material that is resistant to vibration, shock and environmental effects.

Conclusion
T540D477M004BH8710WAFL is a tantalum polymer capacitor designed for use in high-capacitance, low-impedance applications. Its availability in low-profile and low-leakage designs makes it a suitable option for digital circuits, such as mobile phone baseband processors, amplifiers, etc. Furthermore, due to its reliability and robust construction, these capacitors are ideal for use in power electronics and other industrial applications.

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