Tantalum capacitors full name is tantalum electrolytic capacitors, also belongs to a kind of electrolytic capacitors, the use of metal tantalum as a medium, unlike ordinary electrolytic capacitors as the use of electrolyte, tantalum capacitors do not need to use ordinary electrolytic capacitors coated with aluminum film capacitor paper wound, itself almost no inductance, but this also limits its capacity. In addition, since there is no electrolyte inside the tantalum capacitor, it is suitable for working at high temperatures. This unique self-healing performance guarantees the advantages of long life and reliability. Solid tantalum capacitors have excellent electrical performance, wide operating temperature range, diverse forms, excellent volume efficiency, and their 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 to form a whole and cannot exist alone. Therefore, the unit volume has a very high working electric field strength, and the capacitance is particularly large, that is, the specific capacity is very high, so it is particularly suitable for miniaturization.

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