The solid tantalum capacitor was first developed by the American Belle Laboratory in 1956. It has excellent functions and is a product with a small volume and a larger capacitance among the capacitors. Tantalum capacitors have various shapes and are made into small and chip components suitable for surface mounting. Adapt to the current electronic technology initiative and miniaturization. Although tantalum raw materials are scarce and tantalum capacitors are more expensive, many of them use high specific volume tantalum powder (30KuF.g-100KuF.V/g), coupled with the improvement and perfection of the capacitor manufacturing process, tantalum capacitors have been rapidly developed , The scale of application of tantalum capacitors is increasing. Tantalum capacitors are not only used in military communications, aerospace and other fields, but the scale of application of tantalum capacitors is also used in many products such as industrial control, film and television equipment, and communication surfaces.

Advantages and disadvantages of tantalum capacitors
  The full name of tantalum capacitor is tantalum electrolytic capacitor, which is also classified as a kind of electrolytic capacitor. It uses metal tantalum as the medium, instead of using electrolyte like ordinary electrolytic capacitors, tantalum capacitors do not need to use aluminum-plated capacitor paper like ordinary electrolytic capacitors. Firing has almost no inductance by itself, but it also restricts its capacity. In addition, there is no electrolyte inside the tantalum capacitor, which is very suitable for operation at high temperatures. Tantalum capacitors are characterized by long life, high temperature resistance, high accuracy, and excellent high-frequency filtering and wave-changing functions. However, they are smaller in capacity, more expensive than aluminum capacitors, and withstand voltage and current are weaker. It is used in places with large-capacity filtering. For example, tantalum capacitors can be seen near the CPU socket. They are mostly used in cooperation with ceramic capacitors and electrolytic capacitors or used in places where voltage and current are not high.

　During the operation of tantalum electrolytic capacitors, it has the function of actively repairing or blocking defects in the oxide film, so that the oxide film medium can be reinforced and recovered its due insulation ability at any time, without causing continuous cumulative damage. This common self-healing function guarantees the advantages of long life and reliability. Tantalum electrolytic capacitors have a very high operating electric field strength and are larger than other types of capacitors to ensure their miniaturization.

Reasons for the good filtering of tantalum capacitors:
   Tantalum capacitors have excellent functions. They are small in size and can reach larger capacitance products. Tantalum capacitors are very convenient for larger capacitance. They are rare competitors in power filtering, communication bypass and other purposes.

　Tantalum electrolytic capacitors have the functions of storing electricity, charging and discharging, etc. They are mainly used for filtering, energy storage and conversion, symbol bypass, coupling and decoupling, and time constant components. Pay attention to its functional characteristics in use. Correct use will help to give full play to its functions. For example, consider the product's operating environment and its heating temperature, and adopt methods such as derating. Improper use will affect the product's operating life.

 　Solid tantalum capacitors have excellent electrical functions, wide operating temperature scale, various forms, and excellent volumetric efficiency. They have their common characteristics: the operating medium of tantalum capacitors is a very thin tantalum pentoxide film formed on the surface of tantalum metal. This layer of oxide film dielectric and one end of the junction of the capacitor constitute a whole and cannot exist alone. Therefore, the electric capacity per unit volume is extremely large. That is, the specific capacity is very high, so it is particularly suitable for miniaturization. During the operation of tantalum capacitors, it has the function of actively repairing or blocking defects in the oxide film, so that the oxide film medium can be reinforced and recovered its due insulation ability at any time, without being successively damaged. This common self-healing function guarantees the advantages of long life and reliability.