Eaton 85100AC2221SW50 Receptacle - MIL-DTL-26482 SI
Part Number: 85100AC2221SW50
Quick Summary
The Eaton 85100AC2221SW50 is a MIL-DTL-26482 SI qualified square flange receptacle designed for rugged interconnects in aerospace and industrial equipment. Engineers face challenges with consistent mating, corrosion resistance, and rapid field replacement in harsh environments; this connector addresses those pain points with a robust aluminium shell and cadmium plating. It carries MIL-DTL-26482 SI qualification and REACH environmental compliance, delivering reliability under demanding conditions. With a compact, high-density 21-contact layout and a straight backshell adaptor, it supports scalable, panel-mount interconnects. This combination reduces downtime and simplifies integration in automation, rail, and defense-related machinery, delivering tangible business value through uptime and signal integrity.
Product Information
Extended Description
85100AC2221SW50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos W; 85100AC2221SW50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100AC2221SW50
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
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: 21 solder cup contacts provide high-density interconnects in a single receptacle. Business impact: Enables more circuits per panel and reduces wiring complexity, improving installation efficiency and reducing panel space requirements. Application: Used in control cabinets and equipment where 21-channel interconnection is needed. Feature: Cadmium plating offers robust corrosion resistance. Business impact: Extends service life in harsh environments, lowering maintenance cycles and replacement costs. Application: Outdoor or industrial environments with exposure to contaminants. Feature: Aluminium shell reduces weight without sacrificing strength. Business impact: Improves overall system weight and energy efficiency, benefiting aerospace and mobile machinery. Application: Aircraft, trains, and field equipment where weight matters. Feature: 1/3 bayonet coupling delivers fast, reliable mating. Business impact: Accelerates assembly and field servicing, minimizing downtime. Application: Routine disconnect/reconnect scenarios in automation panels. Feature: Straight backshell adaptor and W orientation simplify cable routing and panel layout. Business impact: Eases installation in tight spaces and maintains consistent wiring geometry. Application: Panels with constrained depth and precise alignment needs. Feature: Delivered with connector, loaded contacts and square flange receptacle compatibility. Business impact: Reduces integration steps and risk of mis-matched components. Application: System integrations requiring turnkey interconnect solutions. Note: This product aligns with REACH requirements and the MIL-DTL-26482 standard, offering a reliable solution for aerospace, rail, and industrial automation projects while supporting long-term maintenance efficiency.
Get a Quick Quote for a Eaton 85100AC2221SW50
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton 85100AC2221SW50?
Enquire Now
FAQs
The 85100AC2221SW50 is a square flange receptacle designed for 21-contact configurations with a straight backshell adaptor and W orientation. It mounts as a square flange receptacle using a 1/3 bayonet coupling and is delivered with the connector assembly, facilitating straightforward integration into standard backplane or panel-mount interconnects in aerospace and industrial control cabinets.
This connector features 21 solder cup contacts (socket/female) within an aluminium shell, cadmium plating, and a 53 mm depth with 40 mm height and width. Operating temperature ranges from -40 to 125 °C. It is REACH compliant and MIL-DTL-26482 SI qualified, ensuring robust performance in harsh environments and regulatory alignment for aerospace and industrial applications.
Yes. The 85100AC2221SW50 is MIL-DTL-26482 SI qualified and configured as a square flange receptacle with high-density 21-contact capability, aluminium shell, and corrosion-resistant cadmium plating. These features suit aerospace, defense, rail, and heavy automation equipment where reliable mating, signal integrity, and long-term durability are critical for uptime.
The connector is MIL-DTL-26482 SI qualified, reflecting stringent military-standard interconnect testing and performance. It also adheres to REACH environmental requirements, supporting compliance in global supply chains and reducing regulatory risk for aerospace and industrial programs.
Plan for a quick mating cycle using the 1/3 bayonet coupling, with the straight backshell adaptor guiding cable routing. Delivered pre-assembled with the connector to minimize wiring errors. For maintenance, rely on the corrosion-resistant cadmium plating and aluminium shell to extend intervals, while inspecting the solder cup contacts for integrity during routine preventive maintenance.