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Tantalum Capacitors

Tantalum capacitors, as one of many types of capacitors, have a wide variety of applications.. They are often used in similar applications where various capacitors such as electrolytic, ceramic and film capacitors are used. Due to their unique construction, tantalum capacitors are particularly suitable for applications where the highest possible capacitance within small form factor size is desirable. Applications involving military, aerospace, medical, or high-end consumer electronics, as well as general analog, electronic, and digital functions, are particularly suitable for tantalum capacitor use.

M39006/09-8472 Application Field

The M39006/09-8472 is an Electrolytic Tantalum Capacitors with Type E case size and impedance characteristics. The M39006/09-8472 comes in ratings ranging from 10 to 47 microfarads in 25, 50, and 100 volt versions. It has a capacitance tolerance of ±10%, and a working temperature range of -55 degree Celsius to 85 degree Celsius. The M39006/09-8472 is designed for use in aviation, military, and commercial applications involving filtering, decoupling, and snubbing. It can also be used in other general purpose applications involving AC line bypass, bias supply, and integration circuits.

Working Principle of Tantalum Capacitor

Tantalum capacitors are constructed with a tantalum anode and an oxide cathode. This forms a solid electrolyte, which is then sandwiched between two conductors and two insulators or two conductors and one insulator. The effect of all this is to create a larger surface area and offer a higher capacitance then would be possible with other types of capacitors.

When a potential difference is applied across the terminals of a tantalum capacitor the current flows through the electrolyte and causes a charge to build up on the cathode, while a proportional negative charge is established on the anode. This charge creates an effective electric field across the capacitor allowing current to flow when the potential drops. The amount of capacitance is determined by the capacity of the electrolyte material between the anode and the cathode. Typically, tantalum capacitors can withstand more voltage than ceramic or electrolytic capacitors.

Conclusion

The M39006/09-8472 electrolytic tantalum capacitor is a reliable and versatile component for various commercial, military, and aviation applications. The structure of a tantalum capacitor provides a wide range of operation, including filtering, decoupling, snubbing, and other general purpose applications. The capacitance is determined by the electrolyte material sandwiched between the anode and cathode, and the capacitor can withstand more voltage than it\'s ceramic and electrolytic counterparts. As technology continues to advance, the use of tantalum capacitors is likely to become even more commonplace.

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