국산 고체 알루미늄 전해 커패시터의 가속수명시험 개발 및 국외 선진업체 제품과의 특성 비교

Development of Accelerated Life Tests for Solid Aluminum Electrolyte Capacitor Made by Domestic Manufacturing Company and Comparison of Characteristics between Domestic Products and Foreign Advanced Products

High temperature operating test, temperature humidity test and temperature cycling were performed at various test levels for solid aluminum electrolyte capacitors made by domestic manufacturing company and foreign advanced manufacturing company. It was found that main failure mode of solid aluminum electrolyte capacitors was the decrease of their capacitances. The decrease of their capacitances has the same pattern in these tests. Test result for comparison of characteristics between domestic products and foreign advanced products shows that domestic products have the shorter lifetime and their capacitances decrease more rapidly in high temperature operating test and temperature humidity test. Also in these tests, accelerated tests for high temperature operating test and temperature humidity test were developed.