Sumitomo 8242-4050 MT HD Series 7.8mm (305) Female Terminal

Sumitomo 8242-4050 MT HD Series 7.8mm (305) Female Terminal

The Component: Genuine Sumitomo 8242-4050 female automotive unsealed crimp terminal contact. MT / HD 7.8mm (305) Series brass female socket box terminal (Reel Form / Loose Piece Cross-Ref: 8242-4050-L / Alternative Direct Equivalent Cross-Ref: Connector ID FA06-82424050-T).

Applications & Fitment: Engineered as a primary factory original equipment (OE) heavy-duty, high-current female socket interface for low-voltage power distribution networks, vehicle cabin fuse blocks, and major electrical circuit switches. Universally specified across global Japanese passenger car, commercial fleet, and heavy transport platforms to populate large-format unsealed Sumitomo 7.8mm (.305) type receptacle connector blocks and fuse-box grids. Most commonly utilized on primary cabling tracks for vehicle starter relays, main power junctions, ignition switches, and heavy thermal control circuits. Highly vulnerable to internal contact spring tongue distortion or permanent deflection if back-probed carelessly using oversized multimeter diagnostic test pins, or barrel collar fracturing if terminated using generic un-profiled hand tools instead of standard factory crimp profile jaws.

Technical Attributes:

- Manufacturer Part Number: 8242-4050 (Brand: Sumitomo Wiring Systems / Japan Genuine Class)

- Product Series Interoperability: MT Series and HD Series 305 Type Multi-Family Cross-Compatibility

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

- Flat Male Pin Mating Acceptance Width: 7.8mm (.305 inch) nominal terminal sizing layout index

- Material Base Compound: High-Conductivity Premium Cartridge Brass

- Surface Plating/Treatment: Unplated Raw Base (Standard Factory Bright Brass Finish)

- Target Wire Gauge Section (Metric): Versatile high-capacity configuration optimized for 0.85mm² to 2.00mm² automotive primary electrical cabling runs (Accepts standard AVSS and CAVS wire classes smoothly)

- Target Wire Insulation Outer Diameter Range: Engineered to tightly wrap and secure cable insulation jacket overall diameters from 2.40mm to 3.10mm [.094 to .122 inch]

- Circuit Performance Thresholds: Heavy-duty power infrastructure handling yielding an exceptionally clean initial contact path restriction capped at a 3.0mΩ Maximum baseline (6mΩ Maximum post-durability testing limits)

- Current Leakage Capacity: Certified with a maximum baseline migration threshold profile capped at 1.0mA Maximum

- Insulation Resistance Rating: 100MΩ Minimum isolation efficiency threshold baseline

- Target Mating Counterpart Pin: Pairs seamlessly as the direct female box partner to Sumitomo 7.8mm series male crimp tab contact 8232-4220

- Compatible Primary Housings: Seats cleanly into standard 7.8mm unsealed connector layouts and multi-series hybrid fuse matrices (such as the 6-way brown housing block 6950-0978, plus 6950-0366 and 6098-0210)

- 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.