FAQ0012 What is the failure mode when reverse voltage is applied on aluminum electrolytic capacitors?

Answer

The failure mode caused by reverse voltage differs as below according to applied voltage, ambient temperature and applied frequency etc.
1. The capacitance of the capacitor decreases.
2. Electrolyte leakage due to activated pressure relief.
3. Short or open mode due to capacitor breakdown.

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Aluminum Electrolytic Capacitors

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