Eaton 85100E2041PY50 Receptacle - MIL-DTL-26482 SI qualified
Part Number: 85100E2041PY50
Quick Summary
The Eaton Souriau 85100E2041PY50 is a MIL-DTL-26482 SI qualified square flange receptacle for rugged aerospace and industrial harness connections. Engineers face challenges with maintaining contact integrity in vibration, temperature swings, and tight panel spaces; this connector addresses those pains with robust mechanicals and high-density contacts. It carries MIL-DTL-26482 SI qualification, REACH compliance, and a wide operating range from -40 °C to 125 °C, backed by an aluminium shell and cadmium plating for corrosion resistance. By delivering a 41-contact configuration in a compact 20-shell-size shell, the solution reduces harness complexity. In practice, this enables faster assembly, lower field failure rates, and safer, more reliable connectivity in demanding environments.
Product Information
Extended Description
85100E2041PY50 Eaton: Square flange receptacle, with backnut, cadmium plating, male solder contacts, pos Y; 85100E2041PY50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E2041PY50
Product Length/Depth
34.5 mm
Product Height
36.9 mm
Product Width
36.9 mm
Product Weight
46.7 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Backnut
Connector accessory option
Delivered with connector
Connector orientation
Y
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Pin (Male)
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 and 41-contact configuration; Business impact: ensures reliability in high-vibration, high-temperature environments; Application: aerospace, defense, industrial automation harnesses. Feature: 1/3 Bayonet coupling with backnut; Business impact: provides secure, quick mating and robust vibration resistance; Application: panel-mounted assemblies in aircraft and machinery. Feature: Aluminium shell, shell size 20, cadmium plating; Business impact: lightweight yet corrosion-resistant construction reduces weight without compromising durability; Application: chassis and field deployable systems. Feature: Solder Cup contacts, pin male delivery, and 41-contact density; Business impact: simplifies wiring harness integration and reduces interconnect complexity; Application: dense control panels and avionics racks. Feature: Wide operating temperature -40 to 125 °C and REACH compliance; Business impact: expands usable life in extreme environments while meeting regulatory standards; Application: military, aerospace, and industrial automation installations.
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FAQs
Install by aligning the square flange with the panel, thread the backnut from the exterior, and secure with the 1/3 bayonet coupling. Ensure solder cups align with the contact pins, then terminate the conductors in a controlled soldering process for reliable joints. The backnut helps seal out contaminants while maintaining mechanical integrity in vibration-prone environments.
The part provides 41 contacts in a shell size 20 aluminium housing, with 41 cavities configured for pin (male) solder cup contacts. It features a straight backnut, 1/3 bayonet coupling, and a square flange receptacle design, delivering compact high-density connectivity suitable for demanding harnesses.
Yes. The 85100E2041PY50 is MIL-DTL-26482 SI qualified, REACH compliant, and rated for -40 °C to 125 °C, making it suitable for aerospace, defense, and rugged industrial automation environments where reliability and regulatory compliance are critical.
The connector is MIL-DTL-26482 SI qualified and REACH compliant, with cadmium plating for corrosion resistance. These certifications support performance in harsh environments and regulatory alignment, though customers should verify any local RoHS or additional site-specific requirements.
Plan for periodic inspection of solder joints and mating interfaces, especially in vibration-heavy applications. The aluminium shell and cadmium plating offer robust corrosion resistance, while the 1/3 bayonet coupling enables repeated mating cycles. Availability of detailed drawings (C08851A.pdf) aids in installation verification and field maintenance planning.