Case 1079 ยท Public preview

Concurrent Capacitor Shorts Can Reveal a System-Level Electrical Event

Several parallel solid tantalum capacitors failed catastrophically, and multiple removed devices exhibited shorts or excessive leakage.

Electrical testingOptical microscopyMicrosectioningSEMEDSProgressive resistance monitoringFailure-population comparison
Preview image for Case 1079

What the evidence preview establishes

The concurrent failures and distributed internal damage supported a high-voltage transient or possible reverse-bias event affecting the capacitor array. The evidence did not support moisture contamination as the primary mechanism despite the failure occurring after humidity testing.

Why this case matters

Multiple simultaneous capacitor failures should be treated as a system event. Population-wide leakage, distributed internal damage, and rapid venting can support transient overstress even when the initiating arc site is no longer observable.

Full evidence reserved for MEMBER and STOREThe complete case includes the evidence sequence, four interpreted figures, alternative explanations, limitations, and practical application guidance.