M39003/09-0371/HSD

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Tantalum capacitors are a type of electrochemical capacitor that utilize tantalum on their anodes. They are highly polarizable, with a high volumetric efficiency and small size. As such, they have become a popular choice of capacitors in many portable electronic and mobile device applications due to their “miniaturization”. The M39003/09-0371/HSD is a series of tantalum capacitors with an impressive scope of applications.

The M39003/09-0371/HSD series is designed for high temperature, high reliability, and long life performance under a wide range of conditions. It is used in avionics, military, communications, instrumentation, aerospace, medical, and high reliability applications. The series is built using a stable encapsulation design, with a special potting process that ensures maximum protection against shock, vibration, and environmental exposure. Some of the main characteristics of the series are high capacitance retention and ESR values, an extended temperature range of -55 to +125 °C, CV characteristic impedance, and compliance with MIL-STD 202G.

The working principle of a tantalum capacitor is basically the same as any other capacitor. They are two-terminal electronic components that store energy in an electric field created by the movement of electrons. In a simple explanation, when a voltage is applied across the two conductive plates (which form the terminals of the capacitor), the electric field between these plates increases, causing an accumulation of electrons on one plate and a deficiency of electrons in the other; this builds up an electrical charge in the capacitor. When the voltage is removed, the charge is dissipated, allowing the capacitor to start from a blank slate.

The M39003/09-0371/HSDs have a basic construction, with a tantalum anode formed in a “can” shape that serves as the housing and electrolyte containing element for the capacitor. The cathode is usually made from a manganese dioxide powder that is molded into a solid pellet placed in the can with the anode. A conductive polymer surround is often included to further protect the capacitor from environmental elements. When properly constructed, the capacitor is hermetically sealed and can withstand harsh conditions such as wide temperature ranges, vibration, or high-pressure environments.

The series sets itself apart due to its impressive performance when it comes to both temperature and voltage ratings. It is certified for operation in temperatures ranging from -55 °C to +125 °C, with a maximum voltage of 24 volts. As a result, the series is often chosen for a wide range of applications due to its reliability and long life performance. It is also highly capable of delivering high power and low ESR in a small package, making it an ideal power source for demanding applications.

In conclusion, the M39003/09-0371/HSD is a series of tantalum capacitors that offers an impressive scope of applications due to its impressive temperature and voltage ratings. Its construction consists of a tantalum anode encased in a can which serves as a housing and electrolyte containing element, and a cathode of manganese dioxide powder which is molded into a solid pellet. Together, this ensures maximum protection against harsh conditions, and allows for long life performance, making it the ideal choice for many high reliability applications.

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