Eaton 85100E2041SW50 Receptacle - MIL-DTL-26482 SI
Part Number: 85100E2041SW50
Quick Summary
Eaton Souriau 85100E2041SW50 is a square flange receptacle for rugged MIL-DTL-26482 connections in harsh industrial environments. Design engineers often struggle with space constraints, backnut mounting, and ensuring contact reliability in compact panel layouts. It is MIL-DTL-26482 SI qualified and REACH-compliant, with cadmium plating and an aluminium shell that help meet stringent aerospace and industrial standards. This design supports high-density 41-contact layouts and secure, straightforward installation, reducing field time and boosting long-term reliability in automation panels.
Product Information
Extended Description
85100E2041SW50 Eaton: Square flange receptacle, with backnut, cadmium plating, female solder contacts, pos W; 85100E2041SW50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E2041SW50
Product Length/Depth
34.5 mm
Product Height
36.9 mm
Product Width
36.9 mm
Product Weight
50 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Backnut
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
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
MIL-DTL-26482 SI qualification provides traceable performance and regulatory alignment, improving supplier risk management and field reliability. For defense and aerospace programs, this certification translates to fewer qualification tests and faster time-to-production in automated systems. The 41 contacts in a compact 34.5 mm depth, 36.9 mm width/height, and 1/3 Bayonet coupling deliver high-density connectivity without expanding panel footprint. In automation panels, this enables dense wiring racks, simplifying installation and reducing enclosure size. Solder Cup contacts provide robust, soldered connections with reliable performance under vibration; cadmium plating enhances corrosion resistance; aluminium shell keeps weight down for easier handling in tight installations. Operating temperature range from -40 to 125 °C ensures consistent performance in extreme environments. Backnut mounting and square flange receptacle simplify mounting, alignment, and serviceability, while standard orientation W keeps harness routing predictable. Delivered with connector compatibility supports quick deployment; compatibility with 851-series accessories minimizes redesign costs and accelerates integration into new equipment.
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FAQs
Begin with the panel cutout sized for the square flange receptacle, insert the unit, and align orientation to W. Secure the backnut from behind the panel to ensure a stable mounting. Mate with a compatible plug, then verify all 41 solder cup contacts for continuity and insulation integrity. Tighten to the manufacturer’s torque spec and perform a functional test.
The 85100E2041SW50 is MIL-DTL-26482 SI qualified, providing military-standard performance for rugged environments. It is REACH-compliant, ensuring regulatory alignment for environmental safety. The assembly features cadmium plating for corrosion resistance and an aluminium shell to balance strength with weight, supporting compliant operation in aerospace and industrial applications.
Yes. This receptacle is part of the 851 Souriau series and supports standard 851 accessories and mating inserts, including backnut assemblies and 1/3 Bayonet coupling. This compatibility simplifies procurement, reduces custom tooling needs, and enables seamless upgrades or field replacements within existing equipment ecosystems.
The 85100E2041SW50 is designed for harsh environments and operates from -40 °C to 125 °C. Cadmium plating and aluminium shell enhance corrosion and mechanical performance, while the high-density 41-contact layout supports reliable operation in both aerospace and industrial automation panels exposed to vibration, dust, and temperature cycling.
The square flange receptacle’s backnut mounting simplifies field service and reduces rework time, while solder cup contacts offer robust, soldered connections with low impedance and stable long-term performance. The 41-contact, high-density design saves panel space and wiring complexity, lowering installation costs and enabling faster integration of new equipment with existing Souriau 851-series systems.