M39003/01-2489H

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Tantalum Capacitors

Tantalum capacitors are chip capacitors containing tantalum, a metal that found application in several different areas from military to industrial. Tantalum capacitors are one of the most useful and versatile tools for wide range of applications as they provide higher capacitance per unit volume, easy surface mounting, and superior electrical characteristics than other ceramic capacitors.

M39003/01-2489H Application Field and Working Principle

The M39003/01-2489H is a tantalum capacitor from a product line manufactured by AVX. It is a 5mm radial, 4-terminal surface mount device with a capacitance of 100μF and a voltage rating of 10V. It is primarily used in computer telecom, industrial, automotive, and aerospace applications.

Tantalum capacitors use a tantalum anode, a manganese dioxide cathode, and an electrolytic cathode. The process of capacitor formation starts when the tantalum anode is placed in a solution containing the electrolyte and the manganese dioxide cathode. When a voltage is applied, electrons flow from the anode to the cathode, forming a layer of tantalum oxide (Ta2O5) on the tantalum anode. This oxide is an excellent insulator and provides long-term reliability and capacitance stability.

The 4-terminal design of the M39003/01-2489H provides increased reliability as it isolates the cathode and anode to reduce leakage current in electrolytic solutions. Furthermore, these devices are temperature compensated to maintain consistent capacitance over wide temperature ranges. This makes them better suited for temperature-sensitive or -sensitive applications.

The M39003/01-2489H is an ideal solution for applications where a high capacitance is needed and reliability is important. It is often used for decoupling, filtering, and snubber circuits. They can also be used in timing circuits and power supplies where a large amount of stored energy is required.

Conclusion

Tantalum capacitors like the M39003/01-2489H show superior performance in applications that require high capacitance and superior reliability. They are very versatile and can be used in a variety of electrical circuits and power supplies.

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