8240-4140 MT Series 6.0mm (250) Female Terminal

Sumitomo 8240-4140 MT Series 6.0mm (250) Female Terminal

The Component: Genuine Sumitomo 8240-4140 female automotive unsealed crimp terminal contact. MT / DS / HD / HM 6.0mm (250) Series raw brass female socket box terminal (Reel Form / Loose Piece Cross-Ref: 8240-4140-L / Alternative Direct Equivalent Cross-Ref: Connector ID 290034).

Applications & Fitment: Engineered as a primary factory original equipment (OE) heavy-duty female socket interface for medium-to-high current low-voltage power distribution blocks, lighting circuits, and auxiliary cabin electrical networks. Universally specified across global Japanese passenger car and commercial vehicle platforms to populate multi-position unsealed Sumitomo 6.0mm (.250) series connector blocks. Highly vulnerable to internal spring tongue deflection or mechanical relaxation if back-probed carelessly with oversized multi-meter diagnostic pins during field troubleshooting, or barrel neck cracking if crimped using non-profiled generic workshop hand tools instead of standard factory crimp profile jaws.

Technical Attributes:

- Manufacturer Part Number: 8240-4140 (Brand: Sumitomo Wiring Systems / Japan Genuine Class)

- Global Industry Competitor Cross-Reference: Connector ID Part Number: 290034 (Drop-In Solution)

- Product Series Interoperability: MT Series 250 Type, 250/305/375 Type Sealed, DS Series, HD Series, and HM Series Multi-Family Cross-Compatibility

- Component Function: Female Socket Contact / Internal Box-Type Terminal

- Mating Blade Footprint Width: 6.0mm (.250 inch) nominal terminal sizing layout index

- Structural Component Material Thickness: 0.32mm raw stock gauge

- Material Base Compound: High-Conductivity Premium Cartridge Brass

- Surface Plating/Treatment: Specialized Anti-Corrosion protective conditioning treatment (Raw Brass Base)

- Target Wire Gauge Section (Metric): Versatile configuration optimized for 0.50mm² to 2.00mm² automotive primary electrical cabling runs (Accepts standard AVSS and CAVS wire classes smoothly)

- Compatible Outer Insulation Diameter Range: Formed to tightly grip cable insulation overall diameters from 1.60mm to 3.10mm [.063 to .122 inch]

- Circuit Performance Thresholds: Medium-to-high current capacity infrastructure handling yielding an exceptionally clean initial contact path restriction capped at a 3.0mΩ Maximum baseline (10mΩ Maximum post-durability limits)

- Target Mating Counterpart Pin: Pairs seamlessly as the direct female box partner to Sumitomo 6.0mm series male crimp tab contact 8230-4040

- Compatible Primary Housings: Seats cleanly into standard 6.0mm unsealed housing layouts, including the 6.0mm 1-row blocks (such as 6187-1551, 6187-3551, or hybrid multi-way matrix blocks like 6245-0121)

- Commercial Access: Tiered B2B wholesale trade volume pricing breaks apply instantly inside your basket for independent tuning garages, loom remanufacturers, and trade auto-electrical stockists.