Eaton 85100AC2221PW50 Receptacle - MIL-DTL-26482 SI qualified
Part Number: 85100AC2221PW50
Quick Summary
The Eaton 85100AC2221PW50 Receptacle is a rugged MIL-DTL-26482 connector engineered for demanding environments in industrial automation and defense-related equipment. This solution addresses installation challenges where space constraints and vibration demand robust, reliable interconnects. MIL-DTL-26482 SI qualification provides a clear benchmark for performance under harsh conditions, while the aluminium shell and cadmium plating enhance durability and corrosion resistance. With a straight backshell adaptor and 21 loaded contacts, this receptacle supports streamlined assembly and long service life, helping engineers reduce maintenance cycles and total cost of ownership in harsh applications.
Product Information
Extended Description
85100AC2221PW50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, male solder contacts, pos W; 85100AC2221PW50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100AC2221PW50
Product Length/Depth
53 mm
Product Height
40 mm
Product Width
40 mm
Product Weight
62.3 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
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 → Business Impact → Application: MIL-DTL-26482 SI qualification delivers proven reliability in high-vibration environments, reducing failure rates and warranty costs for aerospace, military, and heavy industry equipment. Application: Use in rugged assemblies where consistent mating performance is critical. Feature → Business Impact → Application: 21-pin layout with Solder Cup contact type enables straightforward field termination and secure signal integrity, improving installation speed and reducing rework in control cabinets and harness assemblies. Application: Ideal for machine automation and robotic systems requiring dense, dependable interconnects. Feature → Business Impact → Application: 1/3 Bayonet coupling and straight backshell adaptor simplify mating and accessibility in tight installations, boosting technician productivity and retrofit speed. Application: Suitable for aircraft ground support, mobile equipment, and power distribution panels. Feature → Business Impact → Application: Cadmium plating and aluminium shell provide corrosion resistance and lightweight strength, extending outdoor and coastal application life and lowering replacement intervals. Application: Asset-intensive plants where uptime is critical. Feature → Business Impact → Application: 53 mm length and 40 mm width with 62.3 g weight enable compact, modular interconnects that save enclosure space and support scalable expansions. Application: OEM equipment housings and modular automation racks.
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FAQs
The 85100AC2221PW50 is a square flange receptacle with a straight backshell adaptor, designed to mate with Souriau 851-series interfaces. Its 21-contact layout and 1/3 bayonet coupling simplify field assembly, enabling quick, reliable integrations into existing 851-series harnesses and enclosures without extensive rework.
MIL-DTL-26482 SI qualification indicates the connector meets stringent military-standard performance in terms of environmental resistance, vibration, and electrical integrity. For programs demanding reliability in harsh conditions, this qualification provides confidence in long-term operation within aerospace, defense, and industrial automation systems.
Yes. The connector supports operating temperatures from -40 °C to 125 °C and uses an aluminium shell with cadmium plating, offering robust resistance to corrosion, UV exposure, and mechanical stress common in outdoor and industrial environments.
Key specs include 21 contacts, solder cup contact type, square flange receptacle form, and a straight backshell adaptor with W orientation. The 53 mm length and 40 mm width, plus a 62.3 g weight, influence enclosure fit, cable routing, and mounting clearances in control panels and equipment housings.
With cadmium plating and a rugged aluminium shell, the connector offers enhanced corrosion resistance and durability. Regular inspection for wear on the bayonet coupling and solder joints is recommended, along with ensuring mating faces remain clean to preserve low-contact resistance and consistent electrical performance over time.