M39003/01-5094

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Tantalum capacitors are solid electrolytic capacitors which use tantalum metal for the anode. They comprise two basic types according to the construction of the anode - wet Tantalum and dry Tantalum. Applications of Tantalum capacitors span many industries. One of these is the M39003/01-5094 series of Tantalum capacitors, designed for military and aerospace requirements.

The M39003/01-5094application field is general aviation and aerospace, automotive, air conditioning, computer, cell phone, and other electronic application fields. The temperature coefficient of the M39003/01-5094 series can range from 10 ppm/K - 470 ppm/K, and its rated capacitance range is 1μF to 8200μF. It has a rated voltage range of 10V DC to 100V DC. The size of the capacitors and their leads is the same as the commercial package of 1608.

The basic working principle of a Tantalum capacitor is fairly simple. The semiconductor tantalum is used in the form of a foil as the anode of the capacitor. On the tantalum metal, an insulator layer called the solid electrolyte is formed. This solid electrolyte acts as the dielectric layer in between the two conductive plates. In the capacitor, the anode is made of tantalum metal and the cathode is made of an aluminium plate on top of a porous layer of a special electrolyte that allows ions to pass through it.

Between the two electrodes, a steady current will flow from the anode to cathode when connected to a voltage source. This is due to the ion mobility of the electrolyte, which is a measure of the carrier concentration and relaxation time of the ions in the electrolyte. This current will cause the anode to charge up and consequently result in the formation of an electric field, which is proportional to the applied voltage, between the two electrodes. This electric field will create an attractive force and store charge on the anode. The stored charge will cause the electric field to reduce in strength, and the capacitor will reach equilibrium when the electric field becomes steady.

In the case of M39003/01-5094 series of Tantalum capacitors, the anode is an oxygen-free version of pure tantalum foil, ensuring superior characteristics when compared to other types of capacitors. This oxygen-free construction improves the capacitor’s stability and reliability by improving charge and discharge characteristics, capacitance retention and other electrical characteristics. The capacitors also come with two leads for mounting on PC boards.

The characteristics of the M39003/01-5094 Series Tantalum capacitors are especially designed to meet the military and aerospace requirements. These capacitors are particularly suited for use in applications such as power supplies, DC-DC converters, battery powered systems, energy storage, and other critical applications.

The M39003/01-5094 series of Tantalum capacitors are a reliable and efficient choice for a wide range of applications due to their combination of electrical parameters and their oxygen-free construction. The range of operating temperatures and rated capacitance make them especially suitable for military and aerospace applications.

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