M39003/01-2738

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Tantalum capacitors, such as the M39003/01-2738, are surface-mountable components most often used as a storage device for energy/power. They are most commonly used in electrical circuits for filtering, charge storage, and timing functions. The M39003/01-2738 is a cylindrical capacitor used mainly in military and space applications.

The main characteristics of the M39003/01-2738 are its high voltages and an even higher capacitance: it can withstand voltages up to 15kV, and capacitances of up to 1.85μF. It is a solid-state device, allowing it to operate in extreme temperatures without the use of a cooling system. Such features are essential in space, military, and avionics applications.

The working principle of the M39003/01-2738 relies on the use of two metallic plates separated by a dielectric layer, in effect creating an electric field between them. When an electric charge is applied, it creates a potential difference between the two plates. This electric field attracts electrons, which then build up on the two plates, and an electric current begins to circulate between them. The magnitude and direction of current depend on the polarity of the charge applied.

The M39003/01-2738 differs from conventional capacitors in its design: instead of using two metallic plates, it uses a single piece of metal sandwiched between two pieces of dielectric material. This sandwich structure creates an air gap between the two dielectric layers, which increases the capacitance of the capacitor. Furthermore, the metal plates are curved, which gives them a greater surface area, thus increasing the capacitance even further.

The M39003/01-2738’s main application is in military and space applications. It is used in these applications for its high voltage and high capacitance levels, which are both essential components in such settings. It is also used in avionics applications, as it can operate under extreme temperatures without the use of refrigeration or cooling systems.

In summary, the M39003/01-2738 is a high-performance, surface-mountable tantalum capacitor used mainly in military and space applications. It is capable of high voltage and high capacitance, and is well-suited for avionics​ applications due to its tolerances to extreme temperatures. Its main working principle lies in the two metallic plates separated by dielectric layers, creating an electric field between them when a charge is applied.

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