Eaton 85100A2039SY50 Receptacle - MIL-DTL-26482
Part Number: 85100A2039SY50
Quick Summary
Eaton 85100A2039SY50 Receptacle is a MIL-DTL-26482 SI qualified square-flange connector for rugged automation. Engineers often struggle with mating reliability in tight panel spaces and ensuring regulatory compliance of finishes in harsh environments. Its MIL-DTL-26482 SI qualification and REACH compliance, combined with an aluminium shell and cadmium plating, support operation from -40 to 125 °C. This makes it a cost-effective, high-density solution for industrial controls, robotics, and machinery where dependable connectivity and long service life matter.
Product Information
Extended Description
85100A2039SY50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos Y; 85100A2039SY50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100A2039SY50
Product Length/Depth
44 mm
Product Height
36.9 mm
Product Width
36.9 mm
Product Weight
49.7 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
39
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
39
Number of cavity #20
39
Feature: 39 contacts in a compact 39-position layout with solder cup contacts and socket polarity. Business Impact: High signal/power density enables more channels in a smaller panel, reducing wiring complexity and potential points of failure. Application: multi-axis robotics, CNC controls, and process automation where dense I/O is required. Feature: Aluminium shell with Cadmium plating and a Size 20 backshell. Business Impact: Robust corrosion resistance and mechanical integrity in harsh environments, extending service life and reducing maintenance. Application: outdoor or corrosive industrial settings such as steel, mining, and oil & gas operations. Feature: Straight backshell adaptor and Y orientation with 1/3 Bayonet coupling. Business Impact: Simplified installation, reliable mating, and faster field assembly, cutting down commissioning time. Application: control panels, rack installations, and equipment housings. Feature: Operating temperature range -40 °C to 125 °C. Business Impact: Consistent performance across extreme temperatures, minimizing downtime due to thermal stress. Application: heavy equipment, aerospace-adjacent machinery, and high-ambient industrial environments. Feature: Delivered with connector and loaded contact delivery. Business Impact: Immediate readiness reduces assembly steps, improves traceability, and lowers field labor costs. Application: panel builders and integrators aiming for turnkey connectivity.
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FAQs
The 85100A2039SY50 uses a square flange mount with a straight backshell adaptor and a Y orientation. It features 39 solder cup contacts and a 1/3 Bayonet coupling, delivered ready to install. Ensure panel cutouts accommodate a Size 20 shell and verify proper alignment to achieve a leak-free, vibration-resistant connection in tight spaces.
This connector supports 39 contacts in a 39-position cavity layout, all as solder cup contacts. The contact delivery is loaded with socket (female) contacts, providing secure, solderable connections suitable for mixed signal and power applications in demanding equipment.
Yes. It is MIL-DTL-26482 SI qualified, which ensures high-reliability mating in rugged environments. It is also REACH compliant, addressing environmental and regulatory considerations. The aluminium shell with cadmium plating provides corrosion resistance, and the operating temperature range of -40 °C to 125 °C supports extreme industrial use cases.
Key certifications include MIL-DTL-26482 SI qualification for military-grade interconnect reliability, and REACH compliance for environmental safety. The assembly also supports standard aerospace and industrial practices for heavy equipment and control panels, helping meet internal regulatory requirements and supplier qualification standards.
The 85100A2039SY50 reduces downtime through reliable, high-density connections and faster field assembly with the straight adaptor and bayonet coupling. Its durable aluminium shell with cadmium plating extends service life in harsh environments, lowering maintenance costs. The 39-position layout enables efficient channel multiplexing, improving system throughput and overall equipment availability.