Eaton 85100AC2255SW50 Receptacle - MIL-DTL-26482 SI
Part Number: 85100AC2255SW50
Quick Summary
Eaton 85100AC2255SW50 is a MIL-DTL-26482 SI qualified square flange receptacle designed for rugged, high-reliability connections in aerospace and industrial automation. Engineers and procurement teams often grapple with ensuring robust electrical contact in harsh environments, tight panel space, and long-term corrosion resistance. This part adheres to MIL-DTL-26482 SI qualification and REACH compliance, featuring an aluminium shell with cadmium plating for enhanced durability in demanding settings. With 55 contact positions and a robust 1/3 bayonet coupling, it delivers reliable, field-ready connectivity for complex harnesses. In addition, the 85100AC2255SW50 offers seamless compatibility with the Souriau 851 series and proven performance for aerospace, defense, and heavy industry, reducing lifecycle risk and maintenance downtime.
Product Information
Extended Description
85100AC2255SW50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos W; 85100AC2255SW50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100AC2255SW50
Product Length/Depth
53 mm
Product Height
40 mm
Product Width
40 mm
Product Weight
69.8 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Adaptor
Connector accessory option
Delivered with connector
Connector orientation
W
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Socket (Female)
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: MIL-DTL-26482 SI qualification establishes a rugged, aerospace-grade interface. Business Impact: reduces field failures and lowers maintenance costs in aircraft, defense, and heavy equipment environments. Application: ideal for Souriau 851 series panel assemblies in aerospace enclosures and harsh industrial automation cabinets. Feature: 55 contacts in a 53 mm long, square flange receptacle with a 1/3 bayonet coupling. Business Impact: enables high-density, reliable connectivity with compact routing and faster mating cycles. Application: suited to complex harnesses in avionics racks and industrial robotics where space is at a premium. Feature: Solder Cup contacts with Socket (Female) delivery, loaded for immediate terminations. Business Impact: streamlines field wiring and improves solder joint consistency, reducing rework in high-mix assembly lines. Application: permanent wiring in aerospace panels and rugged control cabinets. Feature: Backshell adaptor with straight orientation and W connector direction; delivered with connector. Business Impact: simplifies installation in tight enclosures and ensures correct mating orientation, lowering installation risk. Application: panel-mounted receptacles in compact aerospace and industrial enclosures. Feature: Cadmium plating on an aluminium shell (Shell size 22) and an operating range of -40 °C to 125 °C with REACH compliance. Business Impact: enhances corrosion resistance and thermal tolerance, extending service life in diverse climates. Application: aerospace, defense, and rugged industrial environments requiring durable hardware.
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FAQs
Panel mounting uses the square flange receptacle with a 53 mm depth profile and the 851 series mating counterpart. Choose the Souriau 851 series plug with 55 solder cup contacts, ensure correct orientation (W) and use the straight backshell adaptor for space-constrained panels. Verify cadmium-plated surfaces are clean and free of protective films prior to mating to ensure reliable contact pressure and corrosion resistance.
The 85100AC2255SW50 operates from -40 °C to 125 °C. It uses solder cup contact type with socket (female) contacts, loaded for immediate use, and provides 55 contact positions within aluminium shell size 22 for robust, high-current capable connections compatible with MIL-DTL-26482 SI requirements.
Yes. It is MIL-DTL-26482 SI qualified and designed for high-reliability, vibration-resistant connections typical in aerospace, defense, and rugged industrial automation. The 55-position layout supports complex harnessing, while the 1/3 bayonet coupling offers quick, secure mating in dynamic environments.
The part is MIL-DTL-26482 SI qualified and REACH compliant. Cadmium plating provides enhanced corrosion resistance in demanding environments, and the aluminium shell offers structural durability. Always verify current regulatory requirements for cadmium usage in your region and consider replacements if restricted by procurement standards.
The combination of SI qualification, cadmium plating, and robust aluminium shell delivers long service life with reduced maintenance intervals. Its 55-contact, high-density design minimizes connector count and space, lowering assembly time and potential failure points, which translates to lower lifecycle costs and improved equipment uptime in aerospace and industrial facilities.