Key Quality Indicators
Core Performance Parameters
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Contact Resistance:
≤5mΩ (ensures stable electrical connection)
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Insulation Resistance:
≥100MΩ at 500V (prevents leakage and short circuits)
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Mating Force:
Compliant with industry specifications (smooth operation without jamming)
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Locking Torque:
60cNm (ensures reliable connection under vibration)
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Protection Rating:
IP67/IP68 (verified by actual testing, not just nominal rating)
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Material Certification:
Compliance with RoHS and other industry standards (ensures material quality)
Visual & Physical Inspection
Surface Finish
No burrs, cracks or deformation on housing; uniform surface treatment without scratches or oxidation.
Sealing Ring Condition
Seal rings have good elasticity, no hardening/cracks; proper size without deformation or misalignment.
Thread Quality
Threads are smooth without deformation or damage; easy to assemble/disassemble with no stuck or rough feel.
Terminal Plating
Uniform plating on contact terminals without peeling, blistering or uneven thickness; ensures corrosion resistance.
Technical Note: For critical applications, conduct sample testing (contact resistance, insulation resistance, torque) to verify compliance with specifications before bulk procurement.