Sumitomo 8240-0552 NH Series 0.64mm (025) Female Terminal Contact

The Component: Genuine Sumitomo high-performance female receptacle micro crimp contact terminal. NH Unsealed Interconnect taxonomy / Female receptacle terminal contact / Premium Tin-Plated Heat-Resistant Copper Alloy Construction / High-Density Micro-Contact Leaf Spring Design / Open-Barrel Wire Contact / Component Variant Alias: 8240-0552 / Global Order Reference: 82400552 / Sumitomo Component Class: Female Micro Terminal Contact for NH 0.64mm (025) Series Connector Housings / Alternate/Superseded Reference: 8240-0180.

Applications & Fitment: Engineered as a premium, high-conductivity original equipment (OE) specification micro crimp terminal contact designed explicitly for automotive cockpit signal networks, high-density dashboard distribution modules, electronic control units (ECUs), and sensitive instrumentation wiring lines. This 0.64mm (.025 inch) nominal tab width female socket contact is an absolute wire harness remanufacturing, custom loom assembly, and localized field repair staple across prominent international automotive and electric vehicle platforms—most extensively integrated within Toyota, Lexus, Nissan, and Tesla factory electronic layouts. It is standardly deployed across low-voltage signal pathways, serving as the main internal conducting node for high-density multi-way steering column modules, central switch matrices, head unit feeds, and standard unsealed multi-pole NH series housing configurations. It features a specialized heat-resistant copper alloy micro-leaf spring design that exerts continuous, highly stable mechanical contact pressure over the mating male blade pin, maintaining a secure, low-resistance connection path resilient to continuous vehicle chassis vibrations and localized cabin thermal expansion cycles. Engineered to conform to rigid tier-1 automotive manufacturing guidelines, its compact open-barrel crimp tail features specialized conductor and insulation ears precision-proportioned to wrap tightly around micro wire cores, establishing an air-tight gas crimp matrix that entirely eliminates terminal push-back and preserves digital data transmission purity across continuous service lifetimes. Highly critical service item for auto-electrical workshops, aftermarket accessory installers, specialist diagnostic technicians, and wire harness builders executing pin replacements inside delicate factory connector blocks.

Technical Attributes:

- Manufacturer Part Number: 8240-0552 / 82400552 (Brand: Sumitomo / Japan Genuine Component Class)

- Product Series Taxonomy: NH Unsealed Series Interconnect Family

- Component Type: Open-Barrel Female Receptacle Micro Socket Crimp Terminal Contact

- Mating Terminal Dimension: Designed to receive 0.64mm (.025 inch) nominal tab width male pin blades

- Base Metallurgical Compound: Premium Heat-Resistant Copper Alloy base metal providing high mechanical structural stiffness and superior electrical conductance

- Surface Finish Treatment: High-grade Tin (Sn) plating for exceptional corrosion protection and oxidation resistance in unsealed wire pathways

- Wire Range Capacity Accommodation: Precision optimized for micro automotive low-voltage cross-sections from 0.22mm² minimum up to 0.50mm² maximum (typically accommodating AWG 24 to AWG 20 thin-wall wiring layouts)

- Contact Resistance Performance: Ultra-low circuit performance profile with an initial threshold limit of 10mΩ maximum, staying below 30mΩ maximum after full service durability testing cycles

- Leakage and Insulation Thresholds: Certified leakage current remains under 1mA maximum with an insulation resistance baseline of 100MΩ minimum

- Crimp Configuration Profile: Open-barrel dual-zone tail structure requiring independent micro core conductor crimping and insulation strain-relief wrapping

- Housing Integration Compatibility: Precision optimized to click directly into the primary internal retention paths of standard Sumitomo NH unsealed 0.64mm series automotive housing cavities (such as common block configurations like 6098-7063, 6098-5267, 6098-8861, 6098-5269, 6098-5312, and related multi-way blocks)

- Mating Part Reference: Directly mates inline with matching NH series male tab pin terminal **8230-5379**

- Assembly Recommendation: Requires professional open-barrel automotive micro crimp tools featuring appropriate small-profile F-crimp jaws to guarantee correct wire compaction and complete mechanical strain security without distorting the terminal body

- Commercial Access: Available as loose individual workshop pieces, convenient trade repair refill packs, bulk loose trade boxes, or continuous reel runs for automated wire processing machinery. Tiered B2B wholesale trade volume pricing breaks apply instantly inside your basket for independent garages, loom remanufacturers, and trade auto-electrical stockists.