Eaton 85100A2221SW50 Receptacle - MIL-DTL-26482
Part Number: 85100A2221SW50
Quick Summary
Eaton Souriau 851 series MIL-DTL-26482 SI qualified connects panels in rugged aerospace and industrial electronics. Engineers often struggle with maintaining conductivity under vibration, thermal cycling, and corrosive environments, which this design helps mitigate. The product carries MIL-DTL-26482 SI qualification, REACH environmental compliance, and cadmium plating for corrosion resistance, offering confidence in mission-critical assemblies. The square flange receptacle with 21 solder cup contacts supports scalable connector layouts, while the straight adaptor backshell and W orientation simplify installation in tight enclosures. By aligning with the Souriau 851 family, you gain spare-part compatibility and streamlined procurement, reducing downtime and total cost of ownership for complex systems.
Product Information
Extended Description
85100A2221SW50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos W; 85100A2221SW50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100A2221SW50
Product Length/Depth
44 mm
Product Height
40 mm
Product Width
40 mm
Product Weight
58.5 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
21
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
21
Number of cavity #16
21
Feature: MIL-DTL-26482 SI qualification ensures proven reliability in demanding environments. Business Impact: Reduces system risk in aerospace and military-grade applications, supporting compliance-driven procurement and lower lifecycle costs. Application: Ideal for high-vibration platforms and harsh service conditions where steady conductivity is critical. Feature: Cadmium plating on an aluminium shell provides corrosion resistance without adding excessive weight. Business Impact: Extends service life in challenging environments, leading to lower maintenance and replacement costs. Application: Suitable for salt spray zones, industrial plants, and outdoor installations.Feature: 21 solder cup contacts with socket gender, delivered loaded and ready for installation. Business Impact: Speeds assembly, simplifies field servicing, and minimizes iteration during harnessing. Application: Common in 21-position MIL-DTL-26482 configurations where quick, reliable solder connections are required.Feature: Square flange receptacle with 44 mm depth and 40 mm width/height, shell size 22. Business Impact: Streamlines chassis layout and mating alignment, reducing mounting time and tooling needs. Application: Compatible with standard Souriau 851 series backshells and 1/3 bayonet coupling for secure retention.Feature: 1/3 bayonet coupling and W orientation support flexible, robust mating in tight spaces. Business Impact: Improves ease of installation in constrained panels, decreasing rework and risk of misalignment. Application: Aerospace panels, rugged automation enclosures, and compact equipment housings.Feature: Operating range -40 °C to 125 °C with REACH compliance. Business Impact: Enables operation across broad temperature swings, ensuring performance in hot factories and cold climates. Application: Military, aerospace, and industrial automation environments where temperature stability matters.
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FAQs
The 85100A2221SW50 is a square flange receptacle designed for MIL-DTL-26482 SI qualified assemblies. It supports 21 solder cup contacts within a 44 mm depth and 40 mm by 40 mm footprint (shell size 22). It uses a straight backshell with a 1/3 bayonet coupling and W orientation, facilitating straightforward mounting in constrained panels and compatible harnesses.
This connector operates from -40 °C to 125 °C, making it suitable for extreme temperature swings found in aerospace and industrial environments. It features cadmium plating for corrosion resistance on an aluminium shell and is REACH compliant, supporting regulatory and environmental requirements in harsh service applications.
Yes. The 85100A2221SW50 is MIL-DTL-26482 SI qualified, with 21 solder cup contacts and a robust aluminium shell. Its design accommodates demanding vibration and thermal cycles typical of aerospace equipment, while the chemistries and coatings reduce corrosion risk, contributing to long-term reliability in mission-critical systems.
Installation is streamlined by delivering the connector ready for use with the backshell adaptor and straight orientation. The 1/3 bayonet coupling provides rapid, secure mating, and the square flange design simplifies panel mounting with a compact 40x40 mm footprint, reducing assembly time and tooling requirements during integration.
The combination of MIL-DTL-26482 SI qualification, cadmium plating, and an aluminium shell extends service life in corrosive or harsh environments, reducing replacement and maintenance costs. Spare parts compatibility across the Souriau 851 series also lowers procurement complexity and total cost of ownership for multi-system implementations.