Eaton 85100AC2041SY50 Receptacle - MIL-DTL-26482 SI Qualified
Part Number: 85100AC2041SY50
Quick Summary
Eaton 85100AC2041SY50 is a square flange receptacle for MIL-DTL-26482 SI qualified connections. It is designed to simplify rugged assemblies in aerospace, defense, and demanding industrial equipment where space is tight and reliability is non-negotiable. A common challenge is achieving durable solder-cup contacts in compact layouts while ensuring ongoing performance across wide temperature ranges. Key compliance highlights include MIL-DTL-26482 SI qualification and REACH environmental compliance, with cadmium plating delivering corrosion resistance. By matching a compact 53 mm depth, 36.9 mm width and height, and a 41-contact layout, it supports scalable designs and faster field integration—reducing lifecycle costs.
Product Information
Extended Description
85100AC2041SY50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos Y; 85100AC2041SY50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100AC2041SY50
Product Length/Depth
53 mm
Product Height
36.9 mm
Product Width
36.9 mm
Product Weight
57.9 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Adaptor
Connector accessory option
Delivered with connector
Connector orientation
Y
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Socket (Female)
Contact type
Solder Cup
Coupling type
1/3 Bayonet
Layout
41
Plating
Cadmium
Shell material
Aluminium
Shell size
20
Operating temperature - max
125 °C
Operating temperature - min
-40 °C
Receptacle type
Square Flange Receptacle
Number Of Contacts
41
Number of cavity #20
41
Feature: 41-contact layout with solder cup contacts. Business Impact: enables dense, reliable signal and power paths in limited panel space. Application: aerospace harnesses and industrial control panels where footprint matters and performance cannot be compromised. Feature: 1/3 bayonet coupling. Business Impact: quick, secure mating reduces assembly time and service downtime. Application: high-volume assembly lines and field deployments needing rapid connector engagement. Feature: Aluminium shell with cadmium plating. Business Impact: lightweight yet corrosion-resistant housing that tolerates harsh environments. Application: aircraft systems, heavy equipment, and outdoor automation. Feature: Straight backshell adaptor and delivered-with-connector option. Business Impact: streamlined installation with fewer parts and streamlined maintenance. Application: retrofits and new builds requiring flexible routing and reliable environmental sealing. Feature: 41 cavities and square flange receptacle configuration. Business Impact: scalable I/O for complex systems, enabling modular designs and easier testing. Application: avionics, industrial automation, and military-grade equipment. Feature: Operating temperature range -40 °C to 125 °C. Business Impact: maintains performance across extreme climates, reducing field failures. Application: equipment deployed in automotive, rail, or aerospace environments. Feature: Cadmium plating and REACH compliance. Business Impact: improves longevity and regulatory alignment, lowering total cost of ownership. Application: environments with exposure to moisture and contaminants. Note: Compatibility with Souriau 851 series standards helps ensure interoperability across programs and suppliers.
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FAQs
The 85100AC2041SY50 uses a square flange receptacle with a straight backshell adaptor and delivers with connector. Install by aligning the 41-contact cavity layout, securing the square flange to the panel cutout, then mate with the compatible mate (receptacle to plug) using the 1/3 bayonet coupling for a secure seal and easy disconnect.
It operates from -40 °C to 125 °C and uses solder cup contacts. This combination supports reliable electrical performance in extreme climates and simplifies soldering processes during assembly and maintenance.
Yes. The unit is MIL-DTL-26482 SI qualified and designed to mate with compatible Souriau 851 series interfaces, ensuring reliable interchangeability across programs while meeting stringent military standards.
Key dimensions include 53 mm length, 36.9 mm height, and 36.9 mm width with a weight of 57.9 g. These specs help determine panel cutouts, clearance, and harness routing for compact installations alongside other components.
The part is REACH compliant and features cadmium plating for durability. This supports environmental responsibility while maintaining long-term corrosion resistance in harsh environments such as aerospace and industrial automation.