Eaton 85100E2255PW50 Receptacle - MIL-DTL-26482 SI
Part Number: 85100E2255PW50
Quick Summary
Eaton Souriau 85100E2255PW50 Receptacle provides rugged MIL-DTL-26482 SI connectivity for demanding industrial interfaces. Customers often struggle with reliability and compatibility in harsh environments and tight enclosure spaces. MIL-DTL-26482 SI qualification combined with REACH compliance helps ensure performance under -40 to 125 °C. With a high-density 55-contact layout and aluminium backnut shell, the solution fits aerospace, military, and process automation applications while streamlining panel wiring. For OEMs and integrators, the 34.5 mm depth and 40x40 mm footprint help simplify enclosure design, delivering robust performance and long service life.
Product Information
Extended Description
85100E2255PW50 Eaton: Square flange receptacle, with backnut, cadmium plating, male solder contacts, pos W; 85100E2255PW50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E2255PW50
Product Length/Depth
34.5 mm
Product Height
40 mm
Product Width
40 mm
Product Weight
56.6 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
55
Plating
Cadmium
Shell material
Aluminium
Shell size
22
Operating temperature - max
125 °C
Operating temperature - min
-40 °C
Receptacle type
Square Flange Receptacle
Number Of Contacts
55
Number of cavity #20
55
Feature → Business Impact → Application: MIL-DTL-26482 SI qualified design delivers proven reliability in harsh environments, reducing field failures and warranty costs while supporting heavy-duty aerospace, defense, and industrial automation systems. Application: Use in rugged harnesses where mission-critical connectivity is required. Feature → Business Impact → Application: 55-pin high-density contact arrangement enables compact wiring and scalable I/O integration, driving space savings and reducing assembly complexity in control panels. Application: Ideal for complex machine interfaces and high-density equipment racks. Feature → Business Impact → Application: Aluminium shell with cadmium plating provides lightweight yet corrosion-resistant housing, extending service life in challenging environments and supporting long-term maintenance cycles. Application: Suitable for outdoor or exposed installations and legacy systems requiring robust metal housings. Feature → Business Impact → Application: 1/3 Bayonet coupling, backnut, and W orientation allow fast, vibration-resistant mating and secure panel mounting, lowering installation time and improving现场 reliability. Application: Great for on-site assemblies and field upgrades in aerospace and factory floors. Feature → Business Impact → Application: 34.5 mm length with 40x40 mm footprint and 55-contact geometry delivers a compact, repeatable form factor that aligns with standardized panel cutouts, simplifying design and replacement. Application: Useful for OEMs upgrading legacy equipment or integrating new automation modules. Feature → Business Impact → Application: Solder Cup contact type supports reliable, field-serviceable terminations, reducing rework and enabling easier diagnostics in maintenance cycles. Application: Beneficial for controlled wiring harnesses and repair operations in harsh environments.
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FAQs
The 85100E2255PW50 is a square flange receptacle with a backnut for rigid panel mounting. It fits a 40 mm by 40 mm footprint with a 34.5 mm length. This configuration supports straightforward alignment and secure mating, which reduces installation time and aids in vibration-prone environments.
It features 55 solder cup contacts, aluminium shell, cadmium plating, and a -40 to 125 °C operating range. The 1/3 bayonet coupling provides vibration resistance, while the W orientation and backnut backing ensure reliable, repeatable terminations in harsh industrial and aerospace settings.
Yes. The MIL-DTL-26482 SI qualification indicates suitability for demanding aerospace and defense environments, and the environmental condition rating (REACH) supports operation in challenging industrial settings with reliable long-term performance.
The product is MIL-DTL-26482 SI qualified and REACH compliant, offering a combination of rugged mechanical performance and regulatory conformances that support durability, safety, and environmental responsibility in engineering designs.
With a 1/3 bayonet coupling, backnut, and solder cup contacts, installation is faster and more repeatable, and field terminations are straightforward to inspect and service. The high-density 55-contact arrangement reduces harness complexity, lowering wiring costs and maintenance time over the product lifecycle.