Capacitor Failures
(The 15 practical case studies in various capacitor applications)
Introduction
AIC tech capacitors are designed and manufactured under strict quality control and safety standards. To ensure safer use of our capacitors, we ask our customers to observe usage precautions and to adopt appropriate design and protection measures (e.g., installation of protection circuits).
However, it is difficult to reduce capacitor failures to zero with the current level of technology. Therefore, this report explains troubleshooting (diagnosis of failures and appropriate measures) to ensure proper and safe use of capacitors.
Contents
You will find the following content concerning Capacitor Failures
- Perhaps a capacitor has failed?
- How does a capacitor fail?
- The 15 Practical Case Studies
- Aluminum Electrolytic Capacitors
Case 1 A Capacitor Started Smoking
Case 2 A Capacitor Generated Heat and Failed
Case 3 Capacitance Decrease
Case 4 Vapor Erupted From A Capacitor
Case 5 A Capacitor Failed at Hot Place
Case 6 An Overcoated Capacitor Failed
Case 7 A Capacitor Do Not Like Cold
Case 8 Capacitor’s Best-Before Date?
Case 9 Spark from Al Electrolytic Capacitor
Case10 Horizontally Mounted Al Electrolytic Capacitor
Case11 A Capacitor in Series Strings Has Failed - Film capacitors
Case12 DC Film / AC Film Capacitor
Case13 What’s The Electrode, Metalized or Foil?
Case14 A Capacitor Suffered From Thermal Stress
Case15 Strange Sound Came From A Film Capacitor
- Aluminum Electrolytic Capacitors
- Appendix (What’s A Capacitor)
- Conclusion
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