M39003/01-7214/TR

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Tantalum capacitors, such as M39003/01-7214/TR, are widely used in the field of electronics, especially for applications that require high capacitance and small footprint. They are similar to electrolytic capacitors in terms of construction, but with a few important differences. In particular, tantalum capacitors are constructed with a layer of tantalum metal as the anode, a layer of oxide as the dielectric material, and a liquid electrolyte for the cathode. The two materials form a sandwich-like structure that enables them to store electrical charge on both the anode and the cathode.

Tantalum capacitors have a number of advantages over other types of capacitors, including better performance in terms of temperature stability, smaller size, and higher capacitance. The M39003/01-7214/TR type, in particular, has a rated capacitance of 2.2µF, with a temperature coefficient of +85 ppm/°C and a maximum leakage current of 0.25 µA. It is also rated to withstand an operating temperature range of -55 to +125 °C and has a very low Equivalent Series Resistance (ESR) of 1.35Ω at 100kHz.

The working principle of a tantalum capacitor can be explained in terms of a simple electrical circuit. When a voltage is applied across the capacitor, it creates an electric field across the dielectric material. This electric field then induces a corresponding electric current from the anode, which enters the electrolyte. The current then passes through the electrolyte and into the cathode, leaving behind a negatively charged layer. This charged layer effectively increases the capacitance of the tantalum capacitor.

The capacitance of the M39003/01-7214/TR is further affected by the temperature of the operating environment. As the temperature increases, the capacitance of the capacitor decreases, due to the increased resistance of the electrolyte. Conversely, a decrease in temperature results in an increase in capacitance and a lower ESR.

Tantalum capacitors are widely used in many different applications, particularly in smartphones and other consumer electronic devices. They are also used in automotive electronics and aerospace systems, as well as in power supplies, energy storage and radio frequency applications. The M39003/01-7214/TR is one of the most popular types of tantalum capacitors, thanks to its unique combination of high capacitance, superior temperature stability, and small size.

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