Eaton 85100E2025PW50 Receptacle - MIL-DTL-26482 qualified
Part Number: 85100E2025PW50
Quick Summary
Eaton Souriau 851 series MIL-DTL-26482 SI qualified square flange receptacle provides rugged, reliable mating for aerospace and industrial assemblies. Engineers often struggle with compatibility gaps, corrosion risk from cadmium plating, and mounting challenges in tight enclosures. This receptacle carries MIL-DTL-26482 SI qualification and REACH environmental compliance, delivering proven ruggedness and long life. When paired with the 851-series plug, it enables efficient installations and reduced inventory with a common backnut-backed, 25-contact footprint. Designed for high-vibration environments, its straight backshell and backnut provide secure mounting in panels and equipment racks. The solder cup contacts support reliable signal integrity across all 25 cavities, while the cadmium plating offers wear resistance in harsh settings.
Product Information
Extended Description
85100E2025PW50 Eaton: Square flange receptacle, with backnut, cadmium plating, male solder contacts, pos W; 85100E2025PW50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E2025PW50
Product Length/Depth
34.5 mm
Product Height
36.9 mm
Product Width
36.9 mm
Product Weight
41.2 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
25
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
25
Number of cavity #20
25
MIL-DTL-26482 SI qualification and cadmium plating deliver rugged reliability in aerospace and harsh-industrial environments. Business impact: reduces field failures, extends service life, and lowers maintenance costs over multi-year deployments. Application: ideal for systems requiring high-vibration tolerance, thermal stability, and long-term reliability, such as aircraft, defense equipment, and heavy automation lines. Feature: square flange receptacle with backnut and 1/3 bayonet coupling provides robust, twist-resistant mating. Business impact: faster, repeatable assembly with precise alignment; reduces field rework and warranty costs. Application: panel assemblies where space is constrained and misalignment risks are high, such as control panels and field enclosures. Feature: 25-pin layout with male solder cup contacts and aluminium shell size 20 balances robustness and weight. Business impact: simplifies cable termination and enables high-density connections without increasing panel footprint. Application: robotics, machine controls, and automation equipment needing compact yet capable I/O interfaces. Feature: straight backshell angle and W orientation support consistent installation and enclosure design. Business impact: predictable harness routing and easier harness management, reducing installation errors. Application: equipment requiring repeatable cabling layouts in clean-room or harsh environments. Feature: wide operating temperature range (-40 °C to 125 °C) and cadmium plating with aluminium shell. Business impact: expands usable environments while minimizing SKU proliferation. Application: automotive, aerospace, and industrial machinery exposed to temperature extremes and outdoor conditions. Feature: compact footprint with 34.5 mm length, 36.9 mm width and 36.9 mm height, 41.2 g weight; delivered with connector; 25 contacts. Business impact: streamlined mechanical design, lighter assemblies, and easier sourcing from a single 851-series family. Application: design engineers integrating Souriau 851-series into new or upgrade projects; drawings available C08851A.
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FAQs
The 85100E2025PW50 is a square flange receptacle with backnut and 1/3 bayonet coupling and mates with compatible 851-series plugs. It features a W orientation, straight backshell, and 25 solder cup contacts in an aluminium shell size 20. Delivered with connector options streamline procurement, installation, and field interoperability in standard 851-series systems.
This receptacle supports an operating range of -40 to 125 °C and uses cadmium plating on an aluminium shell for durability. It provides 25 solder cup contacts in a 25-position layout, with pin (male) contact delivery. The design uses a backnut and 1/3 bayonet coupling to ensure robust mating in vibration-intensive environments.
Yes. The 85100E2025PW50 is MIL-DTL-26482 SI qualified and aligned with REACH environmental standards. This combination supports high-reliability aerospace and industrial applications while helping ensure regulatory compliance, durability, and long service life across challenging operating conditions.
Plan for panel thickness compatibility with the backnut, ensure proper alignment for the 1/3 bayonet coupling, and verify correct orientation (W). Consider using the delivered-with-connector configuration to simplify assembly and maintain consistency with other 851-series parts. Use drawings C08851A to validate fit and clearance in your enclosure.
Expected ROI stems from reduced field failures, longer service life due to SI qualification and cadmium plating, and faster installation from the backnut and bayonet design. Standardization with the 851-series lowers inventory complexity, minimizes maintenance downtime, and improves uptime in mission-critical equipment across aerospace, defense, and rugged industrial automation.