FAQ

In aluminum electrolytic capacitors, electrolyte is injected inside the capacitor, and the sealing material is tightened with the aluminum case to maintain a seal. However, as the electrolyte evaporates through the molecules of the sealing material, the amount of electrolyte inside decreases over time. As a result, the capacitance of the capacitor decreases and the resistance increases, eventually leading to an open circuit failure. However, the failure mode may vary depending on the usage conditions, such as when the environmental conditions or board mounting conditions exceed the specifications of each product.

Please refer to the catalog and technical notes for typical failure modes and their causes.