Eaton 85100AC2255PX50 Square Receptacle - SI qualified
Part Number: 85100AC2255PX50
Quick Summary
The Eaton 85100AC2255PX50 Square Receptacle is a MIL-DTL-26482 SI qualified connector for high-density interconnects in rugged environments. Designers often struggle with space constraints, mating complexity, and ensuring reliable performance in extreme temperatures. It is MIL-DTL-26482 SI qualified and REACH compliant, aligning with aerospace and industrial safety expectations. The compact 53 mm length and 40x40 mm footprint help maximize panel density, while cadmium plating and an aluminium shell balance durability with weight. This solution delivers 55 solder-cup contacts and a 1/3 bayonet coupling for quick, secure mating, reducing installation time and field maintenance. In practice, it supports high-fidelity harness connections and long-term reliability in harsh environments, a value for OEMs and technicians alike.
Product Information
Extended Description
85100AC2255PX50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, male solder contacts, pos X; 85100AC2255PX50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100AC2255PX50
Product Length/Depth
53 mm
Product Height
40 mm
Product Width
40 mm
Product Weight
65.9 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Adaptor
Connector accessory option
Delivered with connector
Connector orientation
X
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 contact positions and a 1/3 bayonet coupling enable a high-density interconnect with a secure, vibration-resistant mate. Business Impact: Reduces panel footprint, simplifies routing, and minimizes downtime during assembly and diagnostics. Application: Aerospace wiring harnesses, rugged industrial controls, and military equipment where time-to-mission matters. Feature: MIL-DTL-26482 SI qualification plus a -40 °C to 125 °C operating range ensures reliability in demanding environments. Business Impact: Improves field performance and extends service life in extreme temps and harsh atmospheres. Application: Aircraft, ground-defense vehicles, and autonomous industrial systems. Feature: Cadmium plating with an aluminium shell delivers corrosion resistance and weight savings. Business Impact: Lower maintenance costs and easier integration into weight-sensitive platforms. Application: Outdoor installations and elevated-temperature environments. Feature: Solder Cup contact delivery supports direct PCB or harness soldering for streamlined assembly. Business Impact: Reduces component handling steps and shortens installation time. Application: Panel-mounted control interfaces and custom harnesses. Feature: Straight backshell with X orientation and adaptor options improve mounting flexibility. Business Impact: Facilitates clean conduit routing and configurable fit in tight enclosures. Application: Space-constrained panels and modular systems. Feature: Shell size 22 and 53 mm depth keep the assembly compact while delivering 55 contacts. Business Impact: Enables dense interconnects without sacrificing performance. Application: Compact control cabinets and high-density I/O blocks.
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FAQs
The unit uses a straight backshell adaptor with a 1/3 bayonet coupling and an X orientation, delivered with connector hardware. This combination supports secure, quick-mate assembly and flexible panel mounting while maintaining precise alignment for the 55-contact interface.
It features 55 solder cup contacts, a 53 mm length, 40x40 mm footprint, aluminium shell, cadmium plating, and operates from -40 °C to 125 °C. The 22 shell size and 55-position cavity arrangement are designed for high-density, rugged applications.
Yes. It is MIL-DTL-26482 SI qualified, REACH compliant, and built with a robust aluminium shell and cadmium plating to withstand demanding aerospace and defense environments while delivering reliable, long-term performance.
The product is MIL-DTL-26482 SI qualified and REACH compliant, ensuring compliance with aerospace reliability standards and environmental regulations for restricted substances in many regions.
The 1/3 bayonet coupling enables faster mating/demating, the high-density 55-contact arrangement reduces panel space, and the lightweight aluminium shell aids handling and installation. Collectively, these features minimize downtime, shorten assembly cycles, and improve overall system reliability.