Eaton 85100E2041SX50 Receptacle - MIL-DTL-26482 SI

Part Number: 85100E2041SX50
Manufacturer
Eaton
Part number
85100E2041SX50

Quick Summary

Eaton 85100E2041SX50 Receptacle is a rugged MIL-DTL-26482 SI-qualified square flange connector designed for harsh aerospace, defense, and industrial automation interfaces. Engineers often confront mounting challenges and signal integrity concerns in compact panels; this receptacle addresses those by delivering a dense 41-contact cavity in a compact, robust package. MIL-DTL-26482 SI qualification, REACH compliance, and cadmium-plated aluminium construction provide strong environmental and EMI performance. The design supports fast, reliable integration with backnut backshells and a straight orientation, while enabling efficient assembly in control cabinets and rugged equipment. For systems seeking durable Souriau 851 series connectivity with proven industrial reliability, this part balances performance, compatibility, and total cost of ownership.

Product Information

Extended Description

85100E2041SX50 Eaton: Square flange receptacle, with backnut, cadmium plating, female solder contacts, pos X; 85100E2041SX50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E2041SX50
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
X
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: MIL-DTL-26482 SI qualification ensures industry-standard performance in EMI and environmental conditions → Business Impact: Reduces risk of non-compliance failures and costly redesigns, enabling certified integration in aerospace and defense programs → Application: Use in avionics, weapon systems, and rugged automation where qualified connectors are required. Feature: 41 contacts in a square flange receptacle design → Business Impact: High I/O density supports compact, efficient panel layouts and fewer components in the wiring harness → Application: Control panels, robotics interfaces, and high-channel-density assemblies. Feature: Solder Cup contact delivery with female sockets → Business Impact: Reliable, solder-friendly terminations for robust signal and power transfer, lowering rework and inspection time → Application: Production lines, machine controls, and field service assemblies. Feature: Cadmium plating on an aluminium shell with a 20 shell size → Business Impact: Enhanced corrosion resistance and lightweight mechanical strength for aerospace and industrial use → Application: Outdoor or harsh-environment equipment where weight and reliability matter. Feature: 1/3 Bayonet coupling, straight backshell, backnut option → Business Impact: Fast, secure mating with vibration resistance and straightforward field maintenance → Application: Instrument panels, avionics bays, and automation cabinets. Feature: Connector orientation X with delivered-with connector option → Business Impact: Streamlined installation planning and reduced assembly steps, improving project timelines → Application: Panel cutouts and harness routing in tight spaces. Feature: Operational range -40 °C to 125 °C ensuring reliability across temperature extremes → Business Impact: Maintains performance in harsh environments and varying climates, lowering warranty costs → Application: Ground support, aerospace ground equipment, and outdoor industrial applications. Feature: REACH compliance and aluminum construction → Business Impact: Aligns with global environmental and regulatory requirements, easing procurement and certification processes → Application: Global manufacturing operations and regulated industries. Feature: 41 cavities and layout 41 with a backnut/backshell configuration → Business Impact: Predictable performance and consistent mating interfaces for multi-circuit harnesses → Application: Complex control systems and machine-to-machine connectivity. Feature: Delivered with connector option and female solder cup contacts → Business Impact: Ready-to-install readiness reduces project lead times and installation risk → Application: OEM assemblies and system integrator projects seeking plug-and-play connectivity.

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FAQs

The 85100E2041SX50 uses a square flange receptacle with a backnut option and straight backshell, offering straightforward panel mounting. The X-oriented connector design supports efficient harness routing in restricted spaces, while the 41-cavity layout facilitates dense wiring without compromising serviceability or alignment during mating.
MIL-DTL-26482 SI qualification ensures rigorous performance under EMI, thermal, and mechanical stress. Combined with a cadmium-plated aluminium shell and a wide operating temperature range of -40 °C to 125 °C, the design delivers reliable operation in aerospace, defense, and outdoor industrial applications while meeting stringent environmental and reliability standards.
Yes. The 85100E2041SX50 features a 1/3 bayonet coupling and a 41-contact arrangement, enabling secure, vibration-resistant mating with consistent contact density. This makes it suitable for high-channel applications where compact footprint and robust retention are critical, such as automation cabinets and aircraft systems.
Contacts are solder cup type with socket (female) gender, designed for reliable soldered terminations. Cadmium plating provides corrosion resistance, while the aluminium shell keeps weight down. Together, these details support stable electrical performance, improved durability in harsh environments, and ease of maintenance in field installations.
Technical drawings are available as C08851A.pdf from Eaton. Use the official Eaton link in the product downloads section or search for C08851A.pdf to access mating dimensions, connector outlines, and mounting holes for precise integration in your enclosure design.