电子元件与材料2023，Vol.42Issue(11)：1335-1339,5.DOI:10.14106/j.cnki.1001-2028.2023.0442
导电聚合物钽电容器浪涌稳定性研究
Surge stability of conductive polymer tantalum capacitors
摘要
Abstract
Conductive polymer tantalum capacitors(PTCs)have the advantages of high volume efficiency,high reliability,high stability,wide temperature range and good high frequency characteristics,and are irreplaceable key electronic components in highly reliable power electronic circuits.When the high voltage,high current,and high frequency of the new generation of electronic circuits is applied on PTCs with anomalous charging current(ACC)characteristics,the increased surge failure probability and complex failure modes of PTCs happened.By analyzing the causes of the leakage current in PTCs,the main factors of the surge failure are displacement current and intrinsic DC leakage current.Using pre-and post-polymerization technology,the bonding strength of the dielectric-polymer interfaces was enhanced,the surface defects were shielded,and the ACC&leakage current caused by dielectric degradation were curbed.By applying surge current with a 500000 μF energy storage capacitor and surge voltage of 1.5 times to the rated voltage to PTCs,the leakage current stability of PTCs was significantly improved and the ability to withstand surge shocks was enhanced.This results provide strong support for the safe operation of the electronic equipment systems.关键词
导电聚合物/钽电容器/前处理/浪涌测试/稳定性Key words
conductive polymer/tantalum capacitors/pre-treat/surge test/stability分类
信息技术与安全科学引用本文复制引用
田东斌,姚立国,余德艳..导电聚合物钽电容器浪涌稳定性研究[J].电子元件与材料,2023,42(11):1335-1339,5.基金项目
国家自然科学基金(52242703,12362010) （52242703,12362010）
