Tantalum capacitors are processed from the rare metal tantalum. The tantalum is first ground into fine powder and then sintered together with other dielectrics.
The current processes include dry powder molding method and wet powder molding method. Due to the inherent nature of metal tantalum, tantalum capacitors are stable, do not change with changes in the environment, and can achieve large capacitances. In some aspects, they have incomparable characteristics with ceramic capacitors. Therefore, ceramic capacitors cannot be used in many applications. Tantalum capacitors are widely used in circuits.
At present, there are mainly the following brands of tantalum capacitors in the world: AVX, KEMET, VISHAY, and NEC. Among them, AVX and VISHAY have the largest output and the best quality.
Tantalum capacitors are small capacitors that can achieve large capacitance and have excellent performance. Tantalum capacitors come in a variety of shapes and are manufactured into small and chip components suitable for surface mounting. Tantalum capacitors are not only used in military communications, aerospace and other fields, but also widely used in industrial control, film and television equipment, communication instruments and other products.
