Eaton 85100A123SY50 Receptacle MIL-DTL-26482 SI
Part Number: 85100A123SY50
Quick Summary
Eaton Souriau 85100A123SY50 is a MIL-DTL-26482 SI qualified square flange receptacle for rugged interconnects. Engineers often wrestle with matching compatibility and environmental performance across assemblies in demanding environments. The design carries MIL-DTL-26482 SI qualification for reliable interconnects, cadmium plating for corrosion protection, and a broad -40 to 125 °C operating range to ensure performance in harsh conditions. This solution fits well in industrial automation, aerospace, and defense equipment where long life and predictable connectivity matter. In addition, its aluminium shell and Y orientation support straightforward integration into compact panels and harness layouts, helping reduce total cost of ownership across programs.
Product Information
Extended Description
85100A123SY50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos Y; 85100A123SY50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100A123SY50
Product Length/Depth
41 mm
Product Height
26.5 mm
Product Width
26.5 mm
Product Weight
18.8 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 #20
8
Feature → MIL-DTL-26482 SI qualification plus 1/3 Bayonet coupling provides proven mating integrity. Business Impact → Reduces field failures and testing time, enabling faster certification of systems. Application → Ideal for aerospace, defense, and rugged industrial equipment requiring vibration resistance. Feature → Cadmium plating on an aluminium shell delivers corrosion protection. Business Impact → Extends service life in humid or coastal environments, reducing maintenance cycles. Application → Suitable for outdoor installations, chemical processing, and offshore platforms. Feature → Solder Cup contacts delivered loaded with the connector. Business Impact → Speeds harness assembly and improves solder joint reliability in-field or in-shop. Application → Automation controllers, robots, and machinery with frequent wiring changes. Feature → Backshell adaptor with straight orientation Y and compact dimensions (41 mm length x 26.5 mm x 26.5 mm). Business Impact → Easier panel mounting and routing with a small footprint. Application → Panel-mounted enclosures and space-constrained equipment. Feature → 3 contacts in an 8-cavity layout with 1/3 Bayonet coupling. Business Impact → Supports multi‑signal configurations while preserving a compact form factor. Application → Sensor arrays and control interfaces in automation cabinets. Feature → Delivered with connector option and cadmium plating. Business Impact → Streamlines procurement and integration, reducing assembly steps and inventory handling. Application → New builds and retrofit programs across industrial automation and military applications.
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FAQs
Yes. The 85100A123SY50 is a MIL-DTL-26482 SI qualified square flange receptacle designed to mate with compatible MIL-DTL-26482 resources. It features a backshell adaptor and an 1/3 bayonet coupling, and it specifies a layout of three contacts within an eight-cavity framework, supporting multi‑signal configurations while preserving a compact form factor.
The receptacle supports an operating temperature range from -40 °C to 125 °C, enabling use in extreme environments. It carries MIL-DTL-26482 SI qualification, and the cadmium plating provides corrosion protection. It is also listed under REACH environmental considerations, supporting regulatory compliance for many industrial programs.
Yes. The product specifications indicate contact delivery as loaded with solder cup contacts, and the connector is delivered with an adaptor backshell. This simplifies harness assembly and reduces the number of field solderings, improving installation reliability in automation panels.
The backshell is an adaptor with straight orientation (Y), designed for straightforward panel mounting. The overall shell is aluminium (Shell size 12) with a 41 mm depth and compact 26.5 x 26.5 mm footprint, making it suitable for space-constrained enclosures and robotic interfaces in automation or aerospace assemblies.
The combination of MIL-DTL-26482 SI qualification, cadmium corrosion protection, and a solder cup contact approach reduces maintenance needs by improving long-term reliability and joint integrity. Faster harness assembly, easier qualification workflows, and a robust operating temperature range contribute to lower downtime and a favorable total cost of ownership in automation, defense, and aerospace programs.