Tantalum capacitors are a kind of electrolytic capacitors, and they use metal tantalum as a medium instead of electrolyte as common electrolytic capacitors. Tantalum capacitors do not need to be wrapped in aluminum-coated capacitors like ordinary electrolytic capacitors, and tantalum capacitors themselves have little inductance, which limits their capacity.

The working medium of tantalum capacitor is a thin layer of tantalum peroxide film formed on the surface of tantalum metal, which is integrated with one end electrode of the capacitor and cannot exist alone. Therefore, tantalum capacitors have very high working electric field intensity in unit volume, and their electric capacity is especially large, so it is especially suitable for miniaturization.

Tantalum capacitors have excellent performance. They are small capacitors with large capacity, which has few competitors in power filtering, ac bypass, and other applications. Tantalum electrolytic capacitors have the properties of storing electricity, charging and discharging, and are mainly used in filtering, energy storage and conversion, marked bypass, coupling and decoupling, and as the time constant components. Attention should be paid to its performance characteristics in the application, which include measures such as the working environment of the product and its heating temperature, as well as the use of reduced volume. Proper use will help to give full play to its functions; otherwise, it will affect the working life of the product.

The tantalum capacitor has the function of repairing or isolating the defects in the oxide film, which enables the oxide film medium to be reinforced at any time and restored its due insulation capacity without continuous cumulative damage. This unique self-healing performance ensures its long life and reliability advantages.

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