M39003/01-6391/TR

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Tantalum Capacitors

Tantalum capacitors are electrochemical capacitors that use tantalum metal as an electrolyte and have an anode composed of porous tantalum pentoxide. They are considered to be one of the modern day’s premier electrical components due to their incredibly small size, excellent charge and discharge characteristics, high reliability, and high capacitance-to-volume ratio. As such, they are regularly used for a variety of applications such as decoupling, memory backup, and in timing applications.

The M39003/01-6391/TR is a two terminal, surface mount chip tantalum capacitor. It is a non-polarized capacitor offering superior performance, providing capacitance values from 0.1uF up to 10uF with maximum working voltages up to 20V. This device is widely used in the audio/video, automotive, consumer and medical electronics market for its impressive performance.

Application Field

Due to its small size and highly capacitance-to-volume ratio, the M39003/01-6391/TR is often used in audio/video equipment, such as mobile phones, digital cameras, and CD/DVD players. Its compact size also allows it to serve in space-constrained environments, such as automotive, consumer and medical electronics. Some of its most popular applications include decoupling, memory backup and timing.

These capacitors can also be considered for use in pulse applications, as its capacitance-to-volume allows them to handle high frequencies of signal current. Furthermore, its excellent capacity to withstand high temperatures makes it ideal for applications where temperatures can exceed 85°C.

Working Principle

The working principle of tantalum capacitors is largely based on electro chemistry. A tantalum capacitor utilizes the electrolytic action of a special type of metal oxide commonly known as “electrolyte”. This electrolyte acts as a separator between the two active electrodes, and may consist of either a thin tantalum pentoxide layer or a polymer resin layer. The anode electrode is typically composed of a thin layer of tantalum pentoxide, while the cathode is a solid oxide layer or a thick sheet of metal film on the backside of the capacitors.

Tantalum capacitors are also known for their high reliability, as their two active electrodes are protected by the solid electrolyte layer, which serves as an effective barrier against any contamination or short circuit between those electrodes. The capacitance of these capacitors can be varied by adjusting the thickness of the oxide layer, along with the size and shape of the electrodes.

Conclusion

The M39003/01-6391/TR is a two terminal, surface mount chip tantalum capacitor offering significant performance for a wide variety of applications. High capacitance-to-volume ratio, superior reliability, and excellent charge and discharge capabilities are just some of the attractive features of this device. It is ideal for use in audio/video, automotive, consumer and medical electronics due to its small size, making it one of the most popular capacitors today.

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