Eaton 85100E2025SZ50 Receptacle - MIL-DTL-26482 SI qualified
Part Number: 85100E2025SZ50
Quick Summary
The Eaton 85100E2025SZ50 is a MIL-DTL-26482 SI qualified square flange receptacle designed for rugged, high-reliability connections in aerospace, defense, and industrial automation. Engineers often face challenges with dense panels, vibration resistance, and environmental protection in compact connectors. This solution delivers MIL-DTL-26482 SI qualification with a cadmium-plated aluminium shell, backnut mounting, and a 25-position layout to ensure secure mating and robust operation across harsh conditions. With REACH compliance and a Z-oriented connector geometry, it supports streamlined integration into panel assemblies while minimizing heat buildup and maintenance downtime. The combination of proven compatibility, reliable performance, and total cost of ownership advantages makes it a solid choice for demanding programs and long-term supply continuity.
Product Information
Extended Description
85100E2025SZ50 Eaton: Square flange receptacle, with backnut, cadmium plating, female solder contacts, pos Z; 85100E2025SZ50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E2025SZ50
Product Length/Depth
34.5 mm
Product Height
36.9 mm
Product Width
36.9 mm
Product Weight
44.7 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Backnut
Connector accessory option
Delivered with connector
Connector orientation
Z
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Socket (Female)
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
Feature: MIL-DTL-26482 SI qualification provides a standardized performance baseline and proven interoperability. Business Impact: Reduces program risk, ensuring regulatory compliance and supplier consistency across defense and aerospace supply chains. Application: Ideal for mission-critical avionics and rugged industrial systems where connector integrity is non-negotiable. Feature: Square flange receptacle with backnut ensures secure, vibration-resistant mounting. Business Impact: Enhances panel retention and easing field serviceability, lowering maintenance time and potential connection loosening in harsh environments. Application: Panel-mounted enclosures and avionics bays subject to dynamic loads benefit from this robust mounting philosophy. Feature: Cadmium plating on an aluminium shell delivers corrosion resistance and lightweight strength. Business Impact: Extends service life in moisture-rich or saline environments, reducing replacement costs and downtime. Application: Coastal or maritime facilities and outdoor industrial deployments. Feature: 25-contact capacity with a 34.5 mm depth and 36.9 mm width/height footprint balances compact form with signal density. Business Impact: Supports rich I/O in tight panel footprints without sacrificing signal integrity. Application: Aircraft harnesses and machine controls where space is at a premium. Feature: 1/3 bayonet coupling and Z-oriented alignment simplify mating and ensure accurate orientation during installation. Business Impact: Accelerates assembly, reduces misalignment risk, and improves repeatable mating in production settings. Application: Fielded systems requiring quick, reliable connect/disconnect with minimal tools. Feature: Operating range -40 to 125 °C and REACH compliance provide resilience in extreme environments. Business Impact: Ensures reliability across temperature swings and regulatory adherence, lowering thermal-related failures. Application: Military ground and aerospace environments with wide thermal exposure. This combination of features supports compatibility across Eaton Souriau 851 series, enabling streamlined sourcing, spare-part strategy, and predictable lifecycle management for automation and control panels.
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FAQs
The 85100E2025SZ50 is a square flange receptacle designed for panel mounting with a backnut. It provides 25 contacts in a 20-shell-size footprint and uses a 1/3 bayonet coupling with Z orientation for correct alignment. Ensure a compatible panel cutout and mating plug per the 851 series documentation to guarantee proper engagement and sealing.
This connector supports -40 °C to 125 °C operation, with an aluminium shell and cadmium plating. These materials and temperature ratings contribute to corrosion resistance and structural integrity in extreme environments common to aerospace, defense, and industrial automation applications.
Yes. It is MIL-DTL-26482 SI qualified, designed for high-reliability aerospace and defense use. The combination of square flange receptacle form, backnut mounting, and rugged materials makes it a dependable choice for MIL-SPEC and aviation programs needing standardized, tested interfaces.
The 85100E2025SZ50 carries MIL-DTL-26482 SI qualification and REACH environmental compliance. Cadmium plating offers corrosion protection, while the aluminum shell keeps weight down. These factors support regulatory adherence and long-term sustainability in regulated industries.
With backnut mounting, 1/3 bayonet coupling, and a Z orientation, installation is fast and repeatable, reducing labor and misalignment risk. The 25-contact capacity balances signal density with a compact footprint, supporting easier spare management and lower total cost of ownership over system lifecycles.