Eaton 85100A2255SW50 Souriau 851 MIL-DTL-26482 SI qualified
Part Number: 85100A2255SW50
Quick Summary
Eaton Souriau 851 series MIL-DTL-26482 SI qualified receptacle delivers rugged, high-integrity connections for aerospace and industrial applications. Engineers often grapple with compatibility challenges when retrofitting legacy systems, cadmium-containing finishes, and ensuring reliable solder‑cup contacts under vibration. MIL-DTL-26482 SI qualification provides robust mechanical endurance and electrical performance in demanding environments, while REACH compliance supports environmental responsibility in global supply chains. The combination of a square flange receptacle geometry, a straight adaptor, and 55 solder‑cup contacts offers procurement simplicity, faster installation, and lower total cost of ownership for mission-critical harness assemblies.
Product Information
Extended Description
85100A2255SW50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos W; 85100A2255SW50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100A2255SW50
Product Length/Depth
44 mm
Product Height
40 mm
Product Width
40 mm
Product Weight
58.5 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
55
Plating
Cadmium
Shell material
Aluminium
Shell size
22
Operating temperature - max
125 °C
Operating temperature - min
-40 °C
Receptacle type
Square Flange Receptacle
Number Of Contacts
55
Number of cavity #20
55
The 55 solder cup contacts and 1/3 bayonet coupling provide high-density signal distribution with a secure, vibration-resistant mating. This translates to fewer intermittent connections in aircraft harnesses and industrial control panels, improving reliability during flight tests or high-duty factory cycles. Ideal for MIL-DTL-26482 compliant systems requiring tight cavity mapping and compact geometries in 44 mm length and 40 mm square footprints. Cadmium plating paired with an aluminium shell delivers corrosion protection and mechanical resilience in outdoor or damp environments. The combination reduces maintenance cycles and extends service life for deployed equipment, while still enabling compliant assembly processes. This makes it suitable for harsh environments where material compatibility and EMI considerations matter in control cabinets and vehicle harnesses. Delivered with connector option and W orientation means you can simplify sourcing and ensure correct mating orientation out of the box. The straight backshell and square flange receptacle design support straightforward panel mounting, with predictable torque and sealing behavior for reliable field performance. Operating temperature range from -40 to 125 °C ensures consistent electrical performance across extreme ambient conditions, from cold aerospace basements to hot industrial environments. This broad range reduces the need for multiple part variants and supports global deployment with standardised assemblies and inventory. Compatibility and installation advantages go further with a 22 shell size and 55 contact layout that aligns to common harnessing schemes, enabling faster crimping or soldering workflows and easier cable routing. In practice, teams report shorter assembly times, reduced risk of miswiring, and improved traceability when using the MIL-DTL-26482 SI qualified 851 series components. Industry context: the Souriau 851 series is designed for stringent military and aerospace standards while providing the flexibility to adapt to industrial automation panels. For engineers evaluating total cost of ownership, the durable aluminium shell, cadmium finish, and ready-to-install configuration offer measurable maintenance savings and predictable performance in critical systems.
Get a Quick Quote for a Eaton 85100A2255SW50
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton 85100A2255SW50?
Enquire Now
FAQs
Installing the Eaton Souriau 85100A2255SW50 requires aligning the 55-contact receptacle with the panel cutout for the square flange, using the W orientation and straight backshell adaptor. Ensure the 1/3 bayonet coupling fully engages to maintain a secure latch under vibration. Verify mating connector compatibility, solder cup termination, and insulation clearance to prevent crosstalk and shorted circuits.
MIL-DTL-26482 SI qualification guarantees mechanical endurance under shock and vibration and maintains electrical performance across a wide temperature range. For aerospace and defense environments, this qualification supports reliability, traceability, and regulatory compliance, reducing field failure risk and enabling more predictable lifecycle performance in mission-critical systems.
Yes. The 55-contact arrangement is designed to support dense wiring in a single, organized cavity layout. The 44 mm length and 40 mm footprint fit common panel spaces, while the square flange mounting simplifies orientation and mating with compatible 55-contact plugs. Always verify exact cavity mapping for your circuit design to ensure clean, interference-free connections.
Absolutely. With a temperature operating range of -40 °C to 125 °C, this receptacle maintains signal integrity and mechanical performance across extreme ambient conditions typical of heavy-industry panels and outdoor installations. This broad range reduces the need for multiple variants and supports standardized inventory for global deployments.
The combination of cadmium plating and an aluminium shell provides corrosion resistance and structural robustness, lowering maintenance frequency in challenging environments. REACH compliance supports environmental stewardship, while the delivered-with connector option streamlines sourcing and reduces procurement complexity, contributing to lower total cost of ownership over the product lifecycle.