Tantalum capacitor Its full name is tantalum electrolytic capacitor, which also belongs to a kind of electrolytic capacitor. Tantalum capacitor uses metallic tantalum as the medium, unlike ordinary electrolytic capacitors which use electrolyte. Tantalum capacitor does not need to be wound by aluminum-coated capacitor paper like ordinary electrolytic capacitors, and it has almost no inductance itself, which also limits its capacity. In addition, tantalum capacitors are well suited to operating at high temperatures because there is no electrolyte inside. This unique self-healing performance guarantees its advantages of long life and reliability. Solid tantalum capacitors have excellent electrical performance, wide operating temperature range, various forms and excellent volumetry efficiency. Tantalum capacitors have their own unique characteristics: the working medium of tantalum capacitors is an extremely thin tantalum pentoxide film generated on the surface of tantalum metal. This layer of oxide film medium is combined with one end pole of the capacitor as a whole and cannot exist alone. Therefore, the unit volume has a very high working electric field intensity, has a particularly large capacitance, that is, the specific capacity is very high, so it is particularly suitable for miniaturization.

Tantalum capacitors have excellent performance. Tantalum capacitors are small in size and can reach large capacitance. There are few competitors in power filter, AC bypass and other applications.

Tantalum electrolytic capacitors can store electricity, charge and discharge, and are mainly used in filtering, energy storage and conversion, marker bypass, coupling and decoupling, and as time constant components. In application, we should pay attention to its performance characteristics. Proper use will help give full play to its functions, such as considering the working environment and heating temperature of the product, and taking derating use measures, if improper use will affect the working life of the product.

In the working process of tantalum capacitor, it can automatically repair or isolate the defects in the oxide film, so that the oxide film medium can be strengthened at any time and its due insulation ability can be restored, without continuous cumulative damage. This unique self-healing performance guarantees its advantages of long life and reliability.