Eaton 85100A2255PY50 Square Receptacle - MIL-DTL-26482
Part Number: 85100A2255PY50
Quick Summary
Eaton 85100A2255PY50 is a square flange receptacle designed for rugged MIL-DTL-26482 connections in aerospace and industrial systems. Engineers often face mating reliability challenges and corrosion risk in harsh environments, leading to downtime and maintenance headaches. MIL-DTL-26482 SI qualification and REACH environmental compliance provide the foundation for trusted performance across global programs. This combination enables faster installation, predictable lifecycle costs, and scalable integration for control panels, robotics, and remote I/O deployments.
Product Information
Extended Description
85100A2255PY50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, male solder contacts, pos Y; 85100A2255PY50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100A2255PY50
Product Length/Depth
44 mm
Product Height
40 mm
Product Width
40 mm
Product Weight
54.6 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
Pin (Male)
Contact type
Solder Cup
Coupling type
1/3 Bayonet
Layout
55
Plating
Cadmium
Shell material
Aluminium
Shell size
22
Operating temperature - max
125 °C
Operating temperature - min
-40 °C
Receptacle type
Square Flange Receptacle
Number Of Contacts
55
Number of cavity #20
55
Feature: 55-position male solder cup contacts in a square flange receptacle with a 1/3 bayonet coupling. Business Impact: Enables high-density signal transfer and secure mating under vibration, reducing rework and field failures. Application: Ideal for aerospace avionics harnesses and rugged industrial panels where space is at a premium. Feature: Cadmium plating on an aluminium shell with shell size 22 and a compact 44 mm length. Business Impact: Improves corrosion resistance while maintaining a lightweight profile to lower overall system weight. Application: Outdoor and harsh-environment installations in automation cabinets and vehicle-mounted equipment. Feature: Straight backshell orientation with Y connector alignment and delivery with connector. Business Impact: Streamlines panel routing and installation, cutting assembly time and error potential. Application: Panelized control systems and remote I/O enclosures where cable management matters. Feature: Operating temperature range from -40 °C to 125 °C. Business Impact: Broad environmental suitability reduces the need for multiple part variants, lowering inventory and maintenance costs. Application: Equipment deployed in arctic cold, desert heat, and industrial hot zones. Feature: 55 cavities / layout 55 with Cadmium plating and Aluminium shell. Business Impact: Ensures standardization with Souriau 851 series and MIL-DTL-26482 compatibility, enabling scalable solutions across programs. Application: System-level integrations in aerospace, defense, and heavy industry. Feature: Delivered with connector and Receptacle type Square Flange Receptacle. Business Impact: Increases readiness with turn-key connectivity, reducing sourcing steps and assembly time. Application: Panel-mounted connections in cabinets and machinery.
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FAQs
Installation begins with confirming panel cutouts for a square flange receptacle, aligning the 1/3 bayonet coupling, and wiring the 55 solder cup contacts. The straight backshell supports simplified cable routing, while the Y orientation assists connector alignment. Proper torque on mounting screws and ensuring cadmium-plated contacts are clean will maximize mating reliability and vibration resistance.
The unit provides 55 contacts in a single 55-position cavity layout, with cadmium plating on an aluminium shell (size 22). It operates from -40 °C to 125 °C and is designed for a straight backshell with a 1/3 bayonet coupling. It is REACH compliant and MIL-DTL-26482 SI qualified, supporting demanding aerospace and industrial applications.
Yes. The 85100A2255PY50 is MIL-DTL-26482 SI qualified and built with cadmium plating on an aluminium shell, delivering corrosion resistance and structural integrity in vibration-rich aerospace and harsh industrial settings. Its temperature range of -40 °C to 125 °C, combined with a compact form factor, supports both aircraft panels and rugged automation enclosures.
This receptacle is qualified to MIL-DTL-26482 with SI designation, indicating a solder-pin interface suitable for high-reliability applications. It also complies with REACH environmental regulations. While specific CE or IP ratings aren’t listed in the data, MIL-DTL-26482 SI qualification and REACH demonstrate strong regulatory alignment for global programs.
The 85100A2255PY50’s 55-position solder cup contacts and robust aluminium shell with cadmium plating deliver durable mating, reduced corrosion risk, and fewer field failures. The bayonet coupling supports quick mating/demating, lowering maintenance time. Compatibility with the Souriau 851 series enables scalable spares kits and standardized panel assemblies, improving total cost of ownership.