M39003/03-2051

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Tantalum capacitors are polarized (bi-polar) capacitors with electrodes made of a sintered tantalum powder. The capacitors contain an electrolyte, usually manganese dioxide, which forms the dielectric. The terminal leads are made of a material with a low solubility limit in the electrolyte, such as nickel or plated nickel-iron. An anode coating can be applied which is designed to reduce the solubility of the anode lead and to increase the capacitance and voltage rating for applications.

M39003/03-2051 tantalum capacitors are high reliability capacitors manufactured conformally to Mil-PRF-39006/22-0551 and are designed to meet the requirements of MIL-DTL-39006/03-2051. The capacitors are available in 0.05, 0.1, 0.22, 0.47, 1, 2.2 and 4.7µF capacitance and rated voltages of 4V, 6.3V, 10V, 16V, 20V, 25V and 35V. This series of tantalum capacitors have the advantage of being able to withstand high temperature operation (125°C). They are constructed with electrolytic grade manganese dioxide as the dielectric with sintered anode electrodes.

The working principle of the M39003/03-2051 tantalum capacitor is based on its construction. The anode electrodes are constructed by sintering a high purity crystalline or amorphous tantalum pentoxide powder. This forms a porous anode assembly which is then filled with an electrolyte such as manganese dioxide. The porous nature of the anode assembly facilitates the diffusion of the electrolyte into the oxide layers of the tantalum part which results in the formation of an electrochemical polarized layer. This layer acts like a dielectric layer and is charged by the applied voltage.

The application field of M39003/03-2051 tantalum capacitors include computer servers, robotics, aircraft, industrial, automotive, gadgets, telecommunications and medical applications. They are well suited for applications where a reliable, high voltage, low ESR tantalum capacitor is desired. The capacitors are ideal for applications in which high power rating and resistance to shock and vibration are important. The overall size of these capacitors is relatively low, making them ideal for use in tight physical spaces. Other advantages of these capacitors include low intrinsic ESR, long shelf life, high temperature operation, superior voltage and frequency stability, and low self-induction.

In conclusion, M39003/03-2051 tantalum capacitors are capable of performing under extreme conditions. The combination of their robust construction and reliable performance makes them ideal for applications that require a combination of reliability and performance. The use of manganese dioxide electrolyte ensures a low ESR, high frequency performance and excellent temperature stability over a wide range of conditions.

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