Case 1053 ยท Public preview
A Cleaning Solvent Can Breach a Capacitor Seal and Drive Internal Corrosion
Failed aluminum electrolytic capacitors developed internal gas pressure, including a ruptured vent, and severe corrosion at their anode connections.
Optical microscopySEMEDSCapacitor disassemblyFailed-to-functional comparison
What the evidence preview establishes
Trichloroethylene cleaning solvent most likely attacked and breached the rubber seals, introducing chlorine-bearing material that drove internal anode corrosion and capacitor failure.
Why this case matters
Verify cleaning-chemical compatibility with component seals, not only with boards and markings. After a suspect exposure, monitored burn-in using leakage current and capacitance can help identify latent degradation before field use.
Full evidence reserved for MEMBER and STOREThe complete case includes the evidence sequence, four interpreted figures, alternative explanations, limitations, and practical application guidance.