Eaton 85100AC2255PW50 Receptacle - MIL-DTL-26482 SI
Part Number: 85100AC2255PW50
Quick Summary
Eaton 85100AC2255PW50 Receptacle delivers a MIL-DTL-26482 SI qualified connection for harsh aerospace, defense, and industrial environments. Engineers often struggle with corrosion, misalignment, and high maintenance costs when using marginal connectors in rugged systems. This unit is MIL-DTL-26482 SI qualified and REACH compliant, providing reliable mating and regulatory assurance in mission-critical assemblies. With cadmium plating and an aluminium shell, it resists corrosion while maintaining lightweight durability. The square flange receptacle, straight adaptor design with a W orientation supports flexible harness routing and straightforward field installation, delivering measurable uptime improvements for OEMs and integrators in automation and defense applications.
Product Information
Extended Description
85100AC2255PW50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, male solder contacts, pos W; 85100AC2255PW50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100AC2255PW50
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
W
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 → Business Impact → Application: MIL-DTL-26482 SI qualified design and 55 contacts → Delivers MIL-spec reliability and enables dense harnessing, reducing field failures and maintenance costs → Ideal for aerospace, defense, and high-reliability industrial automation. Feature → Business Impact → Application: Cadmium plating on an aluminium shell → Improves corrosion resistance while keeping weight low, extending service life in outdoor or harsh environments → Suitable for outdoor substations, marine-rated installations, and rugged OEM equipment. Feature → Business Impact → Application: Square flange receptacle with straight adaptor and backshell adaptor delivered with connector; orientation W; 1/3 Bayonet coupling → Enables quick, secure mating and straightforward servicing in tight panels → Perfect for panel-mount assemblies in robotics, automation skids, and vehicle systems. Feature → Business Impact → Application: Operating temperature from -40 °C to 125 °C → Supports operation across extreme thermal ranges, reducing the need for climate controls and boosting reliability in harsh environments → Beneficial for aerospace enclosures, industrial ovens, and cold- or hot-start applications. Feature → Business Impact → Application: 53 mm length, 40 mm width, 40 mm height, 55-contact layout, shell size 22, 65.9 g weight → Compact yet capable form factor enables flexible panel layouts and easier routing in compact machinery → Widely applicable to automation panels, control boxes, and portable equipment.
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FAQs
The 85100AC2255PW50 uses a square flange receptacle with a straight adaptor and backshell adaptor, oriented as W. With 53 mm depth and a 40 mm by 40 mm footprint, installation is panel-friendly and supports dense harness routing. It ships configured for solder cup contacts and requires compatible mating connectors to ensure robust, MIL-spec performance in aerospace and industrial automation applications.
Key specs include 55 contacts, a pin male contact type with solder cup termination, 1/3 bayonet coupling, aluminium shell with cadmium plating, shell size 22, and enclosure dimensions of 53 mm length by 40 mm width/height. Operating temperature ranges from -40 °C to 125 °C, and the unit is designed as a square flange receptacle with a straight adaptor and W orientation.
Yes. The 85100AC2255PW50 is MIL-DTL-26482 SI qualified, a hallmark of rugged MIL-spec connectors suitable for aerospace and defense ecosystems. Its cadmium-plated aluminium shell provides corrosion resistance, and the 55-contact configuration supports complex harnessing common in mission-critical platforms. Regulations like REACH compliance further support regulatory alignment for defense and aerospace programs.
The backshell adaptor, along with the W orientation, facilitates flexible mounting and harness routing in tight spaces. The straight adaptor simplifies cable entry and mating alignment, reducing installation time and risk of misalignment. This configuration is particularly advantageous for panel-mounted assemblies in robotics, automation skids, and vehicle systems where space is constrained.
The cadmium-plated aluminium shell delivers strong corrosion resistance, contributing to extended service life in harsh environments. MIL-DTL-26482 SI qualification ensures reliable mating under thermal and mechanical stress, lowering unscheduled maintenance. The design also supports straightforward field servicing with a bayonet coupling, easing mating/demating during upgrades or routine inspections.