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Tantalum Capacitors

Tantalum capacitors are widely used in a variety of electronic devices and components due to their superior reliability and low ESR. They provide a reliable, low impedance electrical connection for power and signal line applications. The M39003/03-0428H (M39) is a high-reliability axial tantalum capacitor designed to meet the stringent MIL-PRF-39003 insulating requirements.

M39003/03-0428H Application Field

The M39 is primarily used in military and aerospace applications, as its name implies. It is used in high-reliability products such as radar, avionics, weapon systems, defense electronics, and high-reliability industrial equipment. Its small size also makes it ideal for use in high-reliability miniature/surface-mount assemblies.

M39003/03-0428H Working Principle

Tantalum capacitors function by creating an electric field between two sets of concentric cylinders. One set is made of a dielectric material such as tantalum oxide, and the other set is made of an electrically conducting material such as tantalum or niobium. When an electric current is applied to the capacitor, an electric field is created between the two cylinders, which causes an electric charge to be stored between them. This stored charge creates an electrical potential, which can then be discharged when needed.

M39 tantalum capacitors are constructed with a solid tantalum electrolyte, which is much less prone to leakage than other tantalum capacitors. The M39 also features a unique molded external body that provides superior electrical insulation and thermal protection. The M39 also offers a high ripple capability, low ESR, and excellent high frequency performance.

Because of their reliable performance, M39 tantalum capacitors are ideal for use in extreme temperature and vibration applications. They are resistant to shock and vibration, and their low internal impedance and self-healing capabilities make them exceptionally reliable in extreme environments.

Conclusion

The reliable performance of the M39 tantalum capacitor make it an ideal choice for a wide range of applications. Its small size, robust construction, high reliability and low ESR make it an excellent choice for use in military, aerospace and high-reliability industrial applications. Its unique molded body and solid electrolyte also make it very resistant to leakage and long-term reliability.

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