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Home » News » industry information » Common failure modes and failure mechanisms of capacitors(2)

Common failure modes and failure mechanisms of capacitors(2)

Views:1     Author:Site Editor     Publish Time: 2018-03-01      Origin:Site

    Main failure mechanism of capacitor breakdown.

    1.The dielectric material has blemishes or defects, or contains conductive impurities or conductive particles;

    2. Electrical aging and thermal aging of dielectric;

    3. Electrochemical reaction in dielectric;

    4. Silver ion migration;

    5. Mechanical damage to dielectric during capacitor manufacture;

    6. The change of molecular structure of dielectric;

    7. Interpolar arc in high humidity or low pressure environment;

    8. Transient short circuit of dielectric under mechanical stress.


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