Eaton 85100E2039PW50 Receptacle - MIL-DTL-26482 SI qualified
Part Number: 85100E2039PW50
Quick Summary
The Eaton 85100E2039PW50 Receptacle is a MIL-DTL-26482 SI qualified square flange connector for high-reliability panel-mount electrical connections. Engineers often struggle with secure mating and corrosion resistance in tight spaces, and this design addresses those issues with a backnut, cadmium plating, and a rugged aluminium shell. It meets MIL-DTL-26482 SI qualification and REACH compliance, and supports a wide operating range from -40 to 125 C. With 39 solder-cup contacts and a 1/3 bayonet coupling, it offers fast, repeatable assembly while preserving signal integrity. Compatible with the Souriau 851 series ecosystem, this receptacle enables straightforward installation in aerospace, defense, and industrial automation applications.
Product Information
Extended Description
85100E2039PW50 Eaton: Square flange receptacle, with backnut, cadmium plating, male solder contacts, pos W; 85100E2039PW50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E2039PW50
Product Length/Depth
34.5 mm
Product Height
36.9 mm
Product Width
36.9 mm
Product Weight
46.8 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Backnut
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
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 solder-cup contacts in a compact 39-position layout. Benefit: High-density I/O reduces panel footprint and wiring complexity, translating to cost and weight savings in aerospace and industrial automation harnesses. Application: Ideal for restricted spaces where performance per pin matters. Feature: 1/3 bayonet coupling. Benefit: Quick mating and unmate without excessive torque, improving field service efficiency and reducing downtime during maintenance. Application: Ground systems, aircraft, and on-site wiring where reliable, fast connects are required. Feature: Backnut Backshell with straight orientation (W). Benefit: Secure mounting with aligned connectors, minimizing misalignment risks and ensuring consistent signal integrity. Application: Panel-mounted enclosures in harsh environments. Feature: Cadmium plating on an aluminium shell (Shell size 20, weight 46.8 g). Benefit: Superior corrosion resistance and reduced weight without sacrificing mechanical strength, extending service life in challenging environments. Application: Military, aerospace, and harsh-industrial settings. Feature: Operating range -40 °C to 125 °C and REACH compliance. Benefit: Proven performance across extreme temperatures with regulatory compliance, reducing the need for alternate materials or coatings. Application: Outdoor and aviation applications where environmental exposure is a concern. Feature: 39-position, square flange receptacle with backnut and delivery-ready connector. Benefit: Streamlined installation and compatibility with existing harnesses and accessories in the Souriau 851 ecosystem. Application: System integrators upgrading legacy panels to MIL-spec interconnects without redesigning enclosures.
Get a Quick Quote for a Eaton 85100E2039PW50
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton 85100E2039PW50?
Enquire Now
FAQs
The 85100E2039PW50 Receptacle is designed as part of the Souriau 851 series ecosystem, ensuring compatible mounting patterns, backnut mounting, and matching contact arrangements. It simplifies integration with existing harnesses and accessories, reducing redesign risk and enabling a smooth upgrade path for MIL-spec interconnects.
With a square flange receptacle and backnut, alignment is facilitated when tightening from the front. The straight backshell orientation minimizes misalignment during mating, while the 1/3 bayonet coupling provides fast, repeatable mating without over-tightening. This reduces assembly time and improves long-term reliability in constrained spaces.
This receptacle is MIL-DTL-26482 SI qualified, supporting high-reliability applications. It also complies with REACH, addressing environmental and regulatory expectations. These certifications help ensure dependable operation in aerospace, defense, and industrial automation environments.
Yes. The 85100E2039PW50 is specified for ambient operating temperatures from -40 °C to 125 °C, enabling use in extreme environments encountered in aerospace, automotive, and outdoor industrial settings without compromising electrical performance.
The combination of cadmium plating, aluminium shell, and a robust 39-pin layout delivers corrosion resistance, weight savings, and high reliability. Quick mating and standardized Souriau accessories reduce maintenance downtime and spare parts inventory, improving overall lifecycle cost for programs in defense and aviation.