M39003/01-6389/HSD

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Tantalum Capacitors

A tantalum capacitor is an electrolytic capacitor that is composed of tantalum metal for one of its electrodes, and an electrolyte, such as manganese dioxide, for the other electrode. It has a higher capacitance than aluminum electrolytic capacitors for the same volume. Tantalum capacitors offer superior performance compared to aluminum electrolytic capacitors due to their higher operating temperature and lower ESR (equivalent series resistance). They are also more stable and reliable than aluminum electrolytic capacitors.

M39003/01-6389/HSD Application Field and Working Principle

M39003/01-6389/HSD is a series of hermetically sealed, conformally coated, radial leaded Tantalum chip capacitors. This series provides high capacitance in a small package, with a wide range of values from 10µF to 68µF at 6.3V to 35V. The capacitors feature a low ESR, high reliability, and a long service life. The device is suitable for a variety of applications, such as power supplies, bypass, filtering, energy storage, and pulse applications.

The operating principle of tantalum capacitors is similar to that of other types of electrolytic capacitors. This capacitor utilizes a tantalum anode, manganese dioxide cathode, an electrolyte, and an insulator. The insulator serves to separate the anode and cathode and the electrolyte conductive medium. When a voltage is applied to the capacitor, the Ta anode reacts with the electrolyte to form tantalum oxide. This forms a thin, highly conductive layer that is the dielectric for the capacitor.

The tantalum capacitor also utilizes a cathode made of carbon and manganese dioxide. When a voltage is applied to the capacitor, electrons flow into the cathode and reduce the manganese dioxide to form a highly conductive metallic layer. This layer forms the connection between the two electrodes, completing the circuit.

The capacitance of a tantalum capacitor is determined by the amount of tantalum oxide that is formed, and the distance between the anode and cathode. This distance is determined by the size of the package, which is why the M39003/01-6389/HSD series has such high capacitance in a small package. The higher capacitance gives the tantalum capacitor much higher levels of efficiency and reliability.

Tantalum capacitors are ideal for use in high-performance systems, due to their high efficiency and stability. They are typically used for power storage, filtering, or bypass circuitry. The M39003/01-6389/HSD series provides high capacitance in a small package, making it an ideal solution for space-constrained applications.

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