
Case 1216 ยท Public preview
Lubricant Can Trap Debris on Connector Contacts while Plating Damage Adds Risk
Connectors exhibited intermittent contact primarily during early mating cycles. Known contaminated, washed, and untouched samples were supplied for comparison.
BSE SEMVariable-pressure SEMEDSWashed-to-untouched comparisonContact-surface examination

What the evidence preview establishes
Suspected contact lubricant trapping metallic debris, molding flash, and environmental particles was the report's leading explanation for intermittency. Washed contacts had much less gross residue, while thin gold plating and local plating fractures remained possible contributors.
Why this case matters
Use contaminated, cleaned, and untouched contacts as a controlled visual comparison. Investigate both contaminant trapping and plating damage, then verify their impact with contact-resistance testing through the relevant mating cycles.
Full evidence reserved for MEMBER and STOREThe complete case includes the evidence sequence, 5 interpreted figures, alternative explanations, limitations, and practical application guidance.