Eaton 85100A84SW50 Receptacle - MIL-DTL-26482 SI
Part Number: 85100A84SW50
Quick Summary
Eaton Souriau 85100A84SW50 is a MIL-DTL-26482 SI qualified receptacle designed for rugged industrial and aerospace interfaces. In practice, engineers face integration gaps, misalignments, and challenging installation in compact enclosures. This solution helps mitigate those pains by delivering a certified, ready-to-install square flange receptacle with 4 solder-cup contacts and a robust adaptor backshell. With REACH-compliant materials and cadmium plating, it supports long-term corrosion protection while maintaining lightweight performance. The combination of a square flange interface, W orientation, and 1/3 bayonet coupling offers clear, repeatable mating in harsh environments, enabling faster assembly and lower lifecycle costs for automation projects and high-reliability machinery.
Product Information
Extended Description
85100A84SW50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos W; 85100A84SW50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100A84SW50
Product Length/Depth
41 mm
Product Height
21 mm
Product Width
21 mm
Product Weight
10.2 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Adaptor
Connector accessory option
Delivered with connector
Connector orientation
W
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Socket (Female)
Contact type
Solder Cup
Coupling type
1/3 Bayonet
Layout
4
Plating
Cadmium
Shell material
Aluminium
Shell size
8
Operating temperature - max
125 °C
Operating temperature - min
-40 °C
Receptacle type
Square Flange Receptacle
Number Of Contacts
4
Number of cavity #20
4
Feature → Business Impact → Application: The 85100A84SW50 uses a square flange receptacle design with a cadmium-plated aluminium shell, delivering a sturdy, lightweight interface that reduces weight in aerospace and industrial installations while maintaining strength. This translates to lower payload impact and improved vibration resistance in high-cycle environments, such as automated hydraulic systems and robotic cells. Feature → Business Impact → Application: Four solder cup contacts in a compact 41 mm x 21 mm x 21 mm footprint enable clean, high-density wiring, which streamlines panel layout and simplifies field servicing. This improves maintenance efficiency and reduces wiring errors during critical upgrade programs. Feature → Business Impact → Application: 1/3 bayonet coupling provides rapid, secure mating, decreasing downtime during assembly and field swaps. In practice, technicians appreciate repeatable connections in tight spaces, especially in conveyor networks and packaging machinery. Feature → Business Impact → Application: Cadmium plating delivers corrosion protection in harsh environments, extending connector life and reducing replacement costs in manufacturing floors and outdoor installations. Feature → Business Impact → Application: Backshell adaptor and straight backshell support straightforward installation and alignment, minimizing misalignment risk when space is constrained. Feature → Business Impact → Application: Operating temperature range from -40 °C to 125 °C ensures reliable performance in extreme climates, improving uptime for outdoor equipment, mining controls, and heavy machinery. Feature → Business Impact → Application: REACH-compliant materials reduce compliance risk for global deployments and supplier audits, helping procurement teams meet regulatory demands while maintaining product performance. The overall design supports 4 contacts and 4 cavities, ensuring scalable configurations for multi-line sensors and actuators without needing additional adapters. By combining a robust shell, precise alignment, and a configurable mating system, this connector delivers measurable efficiency gains, lower total cost of ownership, and greater confidence in mission-critical automotive, aerospace, and industrial automation installations.
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FAQs
This receptacle is designed with a square flange and adaptor backshell to simplify mounting in compact panels. The 41 mm depth and 21 mm by 21 mm footprint support dense layouts, while the 1/3 bayonet coupling enables quick mating. Ensure alignment with the W orientation during installation to maintain proper contact engagement and seal integrity.
The 85100A84SW50 features four solder cup contacts in a four-cavity configuration, aluminium shell size 8, cadmium plating, and operating temperature from -40 °C to 125 °C. It is a straight-backed, square flange receptacle with a backshell adaptor, ensuring robust performance in vibration-prone environments typical of industrial automation.
Yes. The MIL-DTL-26482 SI qualification ensures aerospace-grade reliability, while the square flange receptacle form factor and 1/3 bayonet coupling lock provide secure mating in harsh conditions. With REACH-compliant materials and corrosion protection from cadmium plating, it supports lifecycle durability in both aerospace and rugged industrial environments.
Plan for four solder-cup contacts to simplify wire terminations and ensure proper insulation. The adaptor backshell and straight orientation simplify field upgrades and panel changes. Verify mating connectors are aligned with the W orientation, and inspect for signs of wear after high-cycle duty to prevent performance degradation.
The 85100A84SW50 offers reduced downtime due to quick mating and reliable performance in vibration and extreme temperatures. Its corrosion protection, lightweight aluminium shell, and REACH-compliant materials lower replacement and maintenance costs, while MIL-DTL-26482 SI qualification reduces regulatory risk and simplifies supplier audits for mission-critical automation projects.