2R5TAE680MFL Capacitors

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Tantalum capacitors are an essential component for modern electronics design. Available in both solid-electrolyte and polymer-electrolyte versions, the 2R5TAE680MFL are a type of miniaturized ta-polymer capacitors designed for exceptional performance in a wide variety of applications. This article will explore the key features and applications of the 2R5TAE680MFL as well as its underlying working principles.

Features of the 2R5TAE680MFL

The 2R5TAE680MFL is a miniaturized tantalum capacitor with a maximum operational voltage of 4V and a capacitance of 680μF. It offers excellent temperature stability (partial capacitance change of just -55% over life) and a wide temperature range of -55°C to +125°C. This component also shows high ripple current tolerance, up to 4.8A, and its ESR ranges from 15.0 mΩ to 21.2 mΩ. These features make it ideal for high power applications such as power supplies and DC-DC converters.

The 2R5TAE680MFL also boasts a compact package size of 2.5 x 2.2 mm – a significant reduction from its previous electrolytic tantalum capacitors – making it well suited for use in space-constrained applications such as cellular phones and portable electronics.

Applications

Due to its ability to resist mechanical shock and vibration, as well as its wide temperature range and effective capacitor lifetime of 1000 hours, the 2R5TAE680MFL capacitor is most suited for applications requiring high-endurance, high-performance components, such as:

• Start-up circuits.
• Input/output circuits.
• Power Conditioning and Regulator Circuits.
• DC-DC Converters.
• High-Speed Low-Power Logic (MOSFET Switching, IGBT, etc.).
• Noise-Canceling Filters.

Working Principle

Despite its small size, the 2R5TAE680MFL packs impressive capacitance and voltage handling capacity due to its unique design. Its underlying construction is similar to that of electrolytic tantalum capacitors, consisting of a sintered tantalum anode formed into a rod, and a polymer cathode, separated by a mixture of tantalum pentoxide and polymer material. This combination allows the device to achieve superior capacitance performance while maintaining a relatively low profile.

The operation of the 2R5TAE680MFL takes advantage of the high proportion of surface-area-to-electrolyte of the sintered anode and the polymer cathode. As a result, during operation of the device, an electric field is generated between the anode and cathode, which leads to an accumulation of charge equivalent to the capacitance value. The polymer layer in this configuration also serves as an insulator, ensuring that the accumulated charge does not dissipate.

Conclusion

The 2R5TAE680MFL is an advanced ta-polymer capacitor designed to meet the ever-evolving demands of the modern electronics industry. Offering an enhanced level of performance both in terms of temperature tolerance and power handling, the 2R5TAE680MFL capacitor is ideal for use in high-endurance and high-performance applications. The device also boasts a miniature size, enabling designers to meet increasingly tight space constraints in their designs. Furthermore, its advanced design allows the device to maintain a high level of performance over its operating life, making it a reliable solution for applications that require it.

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