1. Due to the use of fine powder sintered into porous positive electrodes in SMT processing plants, the volume of tantalum electrolytic capacitors is particularly large, and the dielectric constant of tantalum oxide film is larger than that of aluminum oxide film. Therefore, under the same working voltage and capacitance conditions, the volume of tantalum electrolytic capacitors is much smaller than that of aluminum electrolytic capacitors.

2. Wide temperature range for use. Generally, tantalum electrolytic capacitors can operate in temperatures ranging from -40 ℃ to 85 ℃, and some can even operate normally at 155 ℃.

3. The leakage current is very small, the loss is also relatively low, the insulation resistance is high, and the frequency characteristics are good.

4. The capacitor has a large capacity and a long service life, and can be made into ultra small components, which is very convenient.

5. Due to the stable chemical properties of the tantalum oxide film and its resistance to acid and alkali, the performance of the electrolytic capacitor is stable, and it can still maintain very good electrical performance after long-term operation.

6. Due to the use of tantalum metal materials for tantalum electrolytic capacitors in SMT processing plants, coupled with some technological reasons, the cost is relatively high and the natural price is higher.

7. Tantalum electrolytic capacitor is a type of capacitor with polarity and low working withstand voltage.