高压大容量有机固体电解质片式钽电容器可靠性试验

摘要

The high-voltage chip tantalum capacitor is a new developed organic solid electrolyte product with large capacity applied in modern electronic technology. However, the wide application of such capacitors is severely limited because their high temperature reliability detection report has not been established. Currently the usual service temperature of the capacitors is –55-+105℃ which cannot meet the requirements of special fields. In this work, the dielectric and polymer membranes were modified and the moisture-proof coatings were added. The stable performance parameters of capacitors are obtained after a series of reliability tests, and the reliability of capacitors is improved clearly. This study will provide the necessary technical support for the application of high-voltage large-capacity organic solid electrolyte tantalum capacitors in special environment.%高压大容量有机固体电解质片式钽电容器是适应现代电子技术而发展起来的一款新型产品,但由于缺乏其高温可靠性检测报道,严重限制了此类电容器的广泛应用.目前国际上普遍采用–55~+105℃的使用温度范围,而不能满足特殊领域如125℃的使用要求.本文通过对电介质和聚合物膜层的处理,以及增加防潮涂层,经过一系列可靠性试验后电容器的各项性能参数趋于稳定,电容器的可靠性得到明显证实.此研究结果将为高压大容量有机固体电解质片式钽电容器在特殊环境下的应用提供必要的技术支撑.