Eaton 85100A122S50 Receptacle - MIL-DTL-26482 SI Qualified
Part Number: 85100A122S50
Quick Summary
Eaton 85100A122S50 Receptacle provides rugged, MIL-DTL-26482 qualified connectivity for aerospace and defense systems. Manufacturers often struggle with contact reliability and environmental protection in harsh service conditions. The Souriau 851 series is REACH compliant and designed for weight-conscious applications, featuring cadmium plating and an aluminium shell to balance protection and performance. With a straight backshell and a 1/3 bayonet coupling, this receptacle delivers predictable mating and quick field assembly in demanding panels. The combination of two solder-cup contacts and a compact 41 mm length helps optimize panel density while maintaining EMI integrity and mechanical robustness for critical equipment. In short, it combines reliability, regulatory readiness, and efficient installation to support high-throughput manufacturing and maintenance programs.
Product Information
Extended Description
85100A122S50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos N; 85100A122S50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100A122S50
Product Length/Depth
41 mm
Product Height
26.5 mm
Product Width
26.5 mm
Product Weight
17.3 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Adaptor
Connector accessory option
Delivered with connector
Connector orientation
N
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Socket (Female)
Contact type
Solder Cup
Coupling type
1/3 Bayonet
Layout
2
Plating
Cadmium
Shell material
Aluminium
Shell size
12
Operating temperature - max
125 °C
Operating temperature - min
-40 °C
Receptacle type
Square Flange Receptacle
Number Of Contacts
2
Number of cavity #20
8
Feature → Business Impact → Application: MIL-DTL-26482 SI qualified 851 series connectors deliver aerospace-grade reliability and regulatory compliance, reducing field failures and service interruptions in defense and aviation equipment. Application: use in harsh environments where certified MIL-spec performance is essential and long service life is required. Feature → Business Impact → Application: Square flange receptacle with straight adaptor simplifies panel integration and mating alignment, accelerating assembly time and reducing misalignment risk on aircraft and industrial automation panels. Application: retrofit or new builds where compact footprint and straightforward installation matter. Feature → Business Impact → Application: Cadmium plating provides corrosion resistance in aggressive environments, lowering maintenance costs and extending service intervals in coastal or high-humidity facilities. Application: outdoor enclosures and mobile machines exposed to the elements. Feature → Business Impact → Application: Aluminium shell delivers weight reduction without compromising strength, improving overall system efficiency and fuel or energy savings in aerospace platforms. Application: weight-sensitive avionics racks and robotics. Feature → Business Impact → Application: Solder Cup contact type ensures reliable wire termination and consistent electrical performance, reducing rework and ensuring signal integrity in tight control cabinets. Application: high-density control panels with tight clearance. Feature → Business Impact → Application: 1/3 Bayonet coupling enables fast, secure mating with repeatable engagement, supporting quick field servicing and reliable locking under vibration. Application: airborne equipment and industrial machines subject to shocks and vibrations. Feature → Business Impact → Application: 2 contacts with 8 cavity layout provides scalable channel options while keeping footprint compact, enabling flexible I/O configurations in military-grade devices. Application: avionics and defense systems requiring compact multi-contact connectors.
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FAQs
The 85100A122S50 is a Souriau 851 series square flange receptacle designed for MIL-DTL-26482 applications, featuring a straight backside adaptor and 1/3 bayonet coupling for secure mating. It integrates smoothly with standard MIL-spec square flange panels and mating receptacles, enabling consistent alignment, reliable engagement, and straightforward installation in aircraft, defense, and rugged industrial environments.
This connector is MIL-DTL-26482 SI qualified, with cadmium plating and an aluminium shell to balance corrosion resistance and weight. It supports solder-cup contacts, a compact 41 mm length, and a 2-contact configuration in an 8-cavity layout, delivering durable performance under vibration, wide temperature operation (-40 °C to 125 °C), and regulatory compatibility for aerospace and defense equipment.
Yes. The 85100A122S50 is REACH compliant, aligning with modern environmental standards for chemical usage and safety. Its MIL-DTL-26482 SI qualification ensures readiness for high-reliability applications, while cadmium plating adds corrosion protection in challenging environments commonly encountered in aviation and heavy industrial facilities.
The straight backshell with adaptor simplifies panel installation and mating alignment, reducing assembly time and risk of improper mating. The 1/3 bayonet coupling provides rapid engagement with secure retention while maintaining vibration resilience. Ensure compatible mating connectors and proper orientation (N) during installation to preserve signal integrity and environmental sealing.
Cadmium plating offers enhanced corrosion resistance, extending service intervals and reducing maintenance cycles in harsh environments, while the aluminium shell lowers overall weight without sacrificing strength. Together, these features can lower total cost of ownership through fewer field repairs, longer mean time between failures, and improved fuel efficiency in aerospace and other weight-sensitive installations.