Eaton 85100AC123SY50 Receptacle - MIL-DTL-26482 SI qualified

Part Number: 85100AC123SY50
Manufacturer
Eaton
Part number
85100AC123SY50

Quick Summary

Eaton 85100AC123SY50 is a MIL-DTL-26482 SI qualified square flange receptacle designed for rugged aerospace and industrial connectors. In the field, mating reliability and environmental durability are common pain points, especially in constrained or harsh environments where quick, secure connections matter. MIL-DTL-26482 SI qualification and REACH compliance are critical certifications that give engineers confidence in performance and regulatory alignment. This compact 851 series receptacle features a 48 mm depth, 26.5 mm width and a 12-shell size with a lightweight aluminium housing and cadmium plating, delivering durability without excessive bulk. For automation and aerospace harnesses, this solution also supports easy installation and reliable field service, aligning with modern industrial practice and procurement value.

Product Information

Extended Description

85100AC123SY50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos Y; 85100AC123SY50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100AC123SY50
Product Length/Depth
48 mm
Product Height
26.5 mm
Product Width
26.5 mm
Product Weight
21.3 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Adaptor
Connector accessory option
Delivered with connector
Connector orientation
Y
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Socket (Female)
Contact type
Solder Cup
Coupling type
1/3 Bayonet
Layout
3
Plating
Cadmium
Shell material
Aluminium
Shell size
12
Operating temperature - max
125 °C
Operating temperature - min
-40 °C
Receptacle type
Square Flange Receptacle
Number Of Contacts
3
Number of cavity #16
3
Feature → MIL-DTL-26482 SI qualification delivers proven compatibility and regulatory alignment, reducing qualification cycles and risk for critical systems. The business impact is improved project timelines and lower compliance overhead, with applicability across aerospace and rugged industrial environments. In practice, designers specify this 85100AC123SY50 for reliable connectors in harsh conditions, including aerospace harnesses and automated equipment installations. Feature → Three contacts in a 3-cavity layout with solder cup terminals enables dense, low-profile harnessing while maintaining signal integrity. The impact is reduced wiring complexity and consistent mating performance, ideal for automation panels and field repair scenarios. Application: used in square flange receptacles where space is constrained yet reliability is non-negotiable. Feature → 1/3 Bayonet coupling with a straight backshell adaptor supports quick, tool-free mating and secure retention. The result is faster assembly, easier maintenance, and fewer misalignments in manufacturing lines or service calls. Application: retrofit projects and new builds in automation lines that demand fast, repeatable connections. Feature → Cadmium plating on an Aluminium shell provides robust corrosion resistance and EMI shielding in hostile environments. Benefit: extended service life and reduced maintenance costs in outdoor or chemically challenging applications. Application: heavy-duty equipment, defense-adjacent industrial installs, and marine or coastal automation where exposure is high. Feature → Delivered with connector and a compact 12-shell size (Shell size 12) with a 48 mm depth and 26.5 mm width/height. Benefit: streamlined procurement and simplified installation with a known footprint, ideal for standardised harness designs and modular automation racks. Application: system integrators and OEMs standardising interconnects across product families.

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FAQs

The 85100AC123SY50 is a square flange receptacle with a straight backshell adaptor and 1/3 bayonet coupling. It ships as a complete connector option and uses a 3-contact, 3-cavity layout, designed to mate with matching Souriau 851 series parts that share the MIL-DTL-26482 SI qualification. For best results, verify shell size 12 and orientation Y with your partner components.
This receptacle uses three solder cup contacts in a socket (female) configuration. It features cadmium plating on an aluminium shell, offering corrosion resistance, and operates from -40 °C to 125 °C. It also aligns with REACH environmental requirements, supporting durability in regulated environments and long service life in demanding applications.
Yes. The MIL-DTL-26482 SI qualification and square flange receptacle design make it appropriate for aerospace, defense-adjacent industrial automation, and rugged automation harnesses. The combination of aluminium housing, cadmium plating, and a bayonet coupling provides reliable mating and corrosion resistance in harsh operating conditions.
Delivered with connector simplifies assembly and reduces wiring errors by providing a ready-to-mate solution. The 1/3 bayonet coupling enables quick, secure mating with a tactile lock, minimizing downtime during field service or rapid reconfigurations in automation lines. This combination is especially beneficial for service teams requiring fast, repeatable connections.
The MIL-DTL-26482 SI qualification and REACH compliance contribute to predictable reliability and regulatory alignment, lowering lifecycle risk and maintenance costs. In practice, engineers gain faster integration, reduced spare parts complexity, and longer interval maintenance, resulting in lower total cost of ownership for aerospace, military, and rugged industrial interconnects.