M39003/01-7091H

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Tantalum capacitors are not new technology, having been developed over 60 years ago. They play an important role in modern electronics, as they offer improved performance and reliability, compared to other technologies. One type of tantalum capacitor is the M39003/01-7091H.

M39003/01-7091H Features and Applications

The M39003/01-7091H is a surface mount tantalum capacitor which is suitable for a range of applications, including radio communications, movement control, and precision instrumentation. It has a 4-pin package, with a miniature size of just 0.396” x 0.177”. It is robust and durable, with a temperature range of -55°C to +125°C, and a rated voltage of 6.3V.

This type of capacitor is suitable for use in a variety of applications, including digital circuits, AV systems, hybrid circuits and miniature instrumentation. It has a minimal variation in capacitance, low impedance, and a wide range of operating temperatures.

Working Principle

Tantalum capacitors are made up of two tantalum electrodes, which are separated by a porous dielectric oxide layer. Through this layer, a charge is stored between the two plates, forming an electric field. This electric field creates a barrier effect, which prevents current from travelling through the electrolyte between the two tantalum electrodes.

Electrons are able to move between the electrodes, while a dielectric provides the insulation necessary between the two. With the dielectric between them, electrons are not able to transfer from one plate to the other. This creates a barrier which prevents current from travelling through the electrolyte, and is known as the barrier effect.

The dielectric material used in tantalum capacitors is typically an oxide, such as titanium dioxide (TiO2). This material is highly stable, and has a high dielectric constant, which is necessary for it to function effectively. When the tantalum electrodes are connected to an external circuit, the TiO2 dielectric material allows a current to flow between the plates, allowing the capacitor to store electrical energy.

Technical Specifications

The M39003/01-7091H Tantalum Capacitor is rated for a capacitance range of 0.33 µF to 22 µF, with a dielectric strength of 500Vrms. The maximum working voltage is 6.3V, with a leakage current of 10 µA. The dissipation factor is 0.20 and the operating temperature range is -55°C to +125°C.

Conclusion

The M39003/01-7091H is a surface mount tantalum capacitor, which offers improved performance and reliability compared to other technologies. It is suitable for a range of applications, including radio communications, movement control, and precision instrumentation. Through its oxide dielectric layer, this capacitor is able to store electrical energy between its two plates, allowing current to flow between them.

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