Eaton 85100E2027S50 Receptacle - MIL-DTL-26482 SI Qualified
Part Number: 85100E2027S50
Quick Summary
Eaton Souriau 851 series MIL-DTL-26482 SI qualified interconnect provides rugged square flange receptacles. Design teams struggle with corrosion resistance, field maintenance, and mating reliability in harsh environments. MIL-DTL-26482 SI qualification, REACH compliance, and cadmium plating underpin durable performance. This combination supports predictable uptime and lower lifecycle costs for aerospace, defense, and industrial automation. The square flange receptacle with 27 contacts, solder cup delivery, and 1/3 bayonet coupling simplifies installation in constrained spaces.
Product Information
Extended Description
85100E2027S50 Eaton: Square flange receptacle, with backnut, cadmium plating, female solder contacts, pos N; 85100E2027S50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E2027S50
Product Length/Depth
34.5 mm
Product Height
36.9 mm
Product Width
36.9 mm
Product Weight
45.4 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Backnut
Connector accessory option
Delivered with connector
Connector orientation
N
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Socket (Female)
Contact type
Solder Cup
Coupling type
1/3 Bayonet
Layout
27
Plating
Cadmium
Shell material
Aluminium
Shell size
20
Operating temperature - max
125 °C
Operating temperature - min
-40 °C
Receptacle type
Square Flange Receptacle
Number Of Contacts
27
Number of cavity #20
27
Feature → Business Impact → Application: The 85100E2027S50 uses a cadmium-plated aluminium shell and a straight backshell to deliver robust mechanical integrity and corrosion resistance, reducing field failures and maintenance cycles in demanding environments. This directly translates to lower lifecycle costs and higher uptime for aerospace, defense, and industrial automation systems that require dependable interconnects in tight enclosures. Feature → Business Impact → Application: With 27 contacts and solder cup contact delivery, this receptacle supports dense signal and power handling while simplifying assembly and inspection, enabling faster build-runs and easier troubleshooting on assembly lines or in the field. Feature → Business Impact → Application: The 1/3 bayonet coupling and N orientation provide quick mating and reliable alignment, cutting installation time and minimizing miswiring risks in control panels and rugged equipment. Feature → Business Impact → Application: MIL-DTL-26482 SI qualification together with REACH compliance ensures regulatory alignment for defense, aerospace, and industrial OEMs, protecting certifications and streamlining supplier audits. Feature → Business Impact → Application: The aluminium shell, 20 shell size, and 34.5 mm depth offer compact footprint solutions that fit tight equipment bays while maintaining thermal and mechanical performance in harsh operating temperatures.
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FAQs
To install the 85100E2027S50, begin by aligning the square flange receptacle with the mounting holes in the enclosure. Use the backnut to secure the backshell, ensuring the N orientation is correct. Connect the 27 solder cup contacts, verify solder joints for cleanliness, and engage the 1/3 bayonet coupling to finalize the mating. Proper torque on mounting hardware and inspection of continuity are recommended for reliable performance.
Yes. The 85100E2027S50 is designed as part of the 851 series and shares the same MIL-DTL-26482 interface, 27-position layout, and 1/3 bayonet coupling standard. When pairing with mates from the same family, verify contact type (Socket/Female) and ensure the backnut/backshell combination is correctly used to maintain environmental sealing and alignment.
The 85100E2027S50 operates from -40 °C to 125 °C, enabling reliable performance in extreme environments such as avionics bays, outdoor industrial installations, and defense equipment. This wide range supports continued signal integrity and durability under thermal cycling, reducing the risk of intermittent connections in demanding applications.
This receptacle is MIL-DTL-26482 SI qualified, providing a high level of military spec compliance for critical interconnects. It also features REACH environmental compliance and cadmium plating for durability, aligning with regulatory requirements and supplier-approval processes across aerospace, defense, and industrial OEM programs.
The unit features a 34.5 mm depth (length), 36.9 mm height, and 36.9 mm width, with a shell size of 20. It weighs 45.4 g and uses a straight backshell with a backnut. The 27-contact configuration and 1/3 bayonet coupling are designed for compact installation while preserving mating reliability.