Abstract
The present electronic industry requires capacitors having high capacitance with lower volume and space, high reliability and low leakage current. The solid tantalum capacitor ideally meets such requirements. In the present paper, the electrical characterization of tantalum anodes prepared from sodium reduced tantalum powder has been described. The capacitance, DC leakage current are measured for tantalum anodes made with different particle sizes of powders using the LCR Meter and DC Leakage Tester and compared with the physical and chemical properties. Interestingly, it was found that the DC leakage current decreases with decrease in particle size on contrary to the surface area. Besides, a trade-off appears imminent to establish the formation voltage and DC leakage current relationship.
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