The loss in volumetric efficiently and fear of ignition and burning tantalum failure mode, which now dominates online publications, resulted in decline in general applications of Solid Electrolytic Tantalum capacitors including the applications where high reliability and environmental stability of these capacitors are most needed.
Abstract: In this paper, a novel modification method of polypropylene (PP) films is proposed in the field of metallized film capacitors for converter valves. An organic crystallization accelerator with good dispersion improves the micromorphology of PP films.
An organic crystallization accelerator with good dispersion improves the micromorphology of PP films. The doping content of the organic crystallization accelerator is optimized based on breakdown experiments under DC voltage. The DC breakdown strength is 584.8 kV/mm, an increase of 19.6%, compared with that of the original film.
The AC characteristics of Solid Electrolytic Tantalum capacitors are superior to these in Wet Tantalum capacitors where low mobility of ions in the liquid electrolyte cathode cause high equivalent series resistance (ESR) and related rapid capacitance loss with frequency, especially at low temperatures.
Solid Electrolytic Tantalum capacitors are preferable in applications where long-term stability of the AC and DC characteristics in harsh environmental conditions such as a combination of the dry air or vacuum and elevated temperatures are most critical.
Reliable and efficient SMD-type Tantalum capacitors manufactured with F-Tech allow optimal choices to the designers of the end-electronic devices depending on the specific conditions of their applications.