M39003/09-0356

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Tantalum capacitors are widely used today as we know them, because of their superior electrical performance characteristics; such as their outstanding dielectric stability over a wide range of temperature. The M39003/09-0356 is one of the most common types used in industry for its detailed application field and unique working principle.

M39003/09-0356 capacitance values range from 1.5 µF to 470 µF with a rated voltage of up to 50 V. The operating temperature range from -55°C to +125°C. It is a type of low ESR (equivalent series resistance) capacitor designed for mounting on the surface of printed circuit boards. It also boasts low DCL (dissipation factor) and long life expectancy.

With a hermetically sealed construction, the M39003/09-0356 capacitor can withstand a wide variety of environmental conditions and can be used safely and reliably in a variety of application fields such as medical and military electronics. The capacitor is also used in SCR and TRIAC power electronics, mobile phones, DSL modems, laptop computers, automotive applications and power supplies.

The working principle of the M39003/09-0356 capacitor is that of a conventional electrochemical capacitor. Electric charges are stored on two conductive surfaces – the internal anode and cathode – separated by a dielectric material, in this case, a tantalum film. When an electrical potential difference is applied across the electrodes, positive charges accumulate on one side while negative charges accumulate on the other side. This difference of electric charge between the anode and cathode plate electrostatically stores energy.

When the capacitor is charged, the electric charges stored on the electrodes increase the dielectric strength of the dielectric material, creating a barrier able to block the passage of electric current. When the circuit is closed, electric current flows until the capacitor is fully charged. At this point, the electric current stops flowing and the capacitor continues to block current until the voltage is discharged.

The M39003/09-0356 tantalum capacitor not only has exceptional electrical performance characteristics, making it suitable for a wide variety of application fields, but also has a long life expectancy. With a hermetically sealed construction and operating temperatures range of up to +125°C, it really is an ideal component for industrial and commercial applications.

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