Metallized film capacitors used for EMI filtering: A reliability review

Metallized film capacitors are used to reduce electromagnetic interference (EMI) in electric power mains due to their high voltage capability and their open circuit failure mode, which aids in safe operation. This paper presents a comprehensive review of metallized film capacitors used for EMI filte...

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Bibliographic Details
Published inMicroelectronics and reliability Vol. 92; pp. 123 - 135
Main Authors Valentine, Nathan, Azarian, Michael H., Pecht, Michael
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.01.2019
Subjects
Film capacitor
Physics-of-failure
Reliability
Reliability
Film capacitor
Physics-of-failure
Online AccessGet full text
ISSN0026-2714
1872-941X
DOI10.1016/j.microrel.2018.11.003

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Summary:Metallized film capacitors are used to reduce electromagnetic interference (EMI) in electric power mains due to their high voltage capability and their open circuit failure mode, which aids in safe operation. This paper presents a comprehensive review of metallized film capacitors used for EMI filtering and their failure modes and mechanisms. One of the major failure mechanisms discussed is the corrosion of the metallized film due to moisture ingress into the package. Safety, quality, and reliability standards for metallized film capacitors are also discussed. The paper concludes with recommendations for film capacitor selection and the proper qualification and accelerated life testing to ensure long-term reliable operation.
ISSN:0026-2714
1872-941X
DOI:10.1016/j.microrel.2018.11.003