Tantalum capacitor advantages and disadvantages

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Advantages

The full name of tantalum capacitor is tantalum electrolytic capacitor, which is also a kind of electrolytic capacitor. It uses metal crucible as medium. It does not use electrolyte like ordinary electrolytic capacitor. Tantalum capacitor does not need to use aluminum foil coated capacitor paper like ordinary electrolytic capacitor. It has almost no inductance, but it 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 its long life and reliability advantages. Solid tantalum capacitors have excellent electrical properties, wide operating temperature range, various forms, and excellent volumetric efficiency. They have their unique characteristics: the working medium of tantalum capacitors is a very thin layer of tantalum pentoxide film formed on the surface of tantalum metal. This layer of oxide film medium is combined with one end of the constituent capacitors and cannot be present alone. Therefore, there is a very high working electric field strength per unit volume, and the electric capacity is particularly large, that is, the specific capacity is very high, so that it is particularly suitable for miniaturization.

Disadvantages

The capacity is smaller, the price is also higher than the aluminum capacitor, and the voltage and current resistance are weak. It is used in large-capacity filtering places. Like the CPU socket, the tantalum capacitor is seen. It is used together with ceramic capacitors and electrolytic capacitors or used in places where voltage and current are not large.