Eaton 85100E1811PX50 Receptacle - MIL-DTL-26482 SI Qualified
Part Number: 85100E1811PX50
Quick Summary
Eaton Souriau 851 series MIL-DTL-26482 SI qualified receptacle delivers rugged, high-reliability connections for aerospace, defense, and industrial applications. In many projects, connectors fail from corrosion, vibration, or mounting incompatibilities; this part targets those pain points with a robust square flange receptacle and backnut design. MIL-DTL-26482 SI qualification ensures traceable performance in mission-critical environments, while REACH compliance supports regulatory requirements for chemical safety. The aluminum shell with cadmium plating delivers durable protection across temperature extremes, and an 11-contact, solder cup layout enables compact, field-assembly friendly harnessing. For system integrators, the X connector orientation and 1/3 bayonet coupling simplify installation, reduce maintenance overhead, and improve uptime in harsh environments.
Product Information
Extended Description
85100E1811PX50 Eaton: Square flange receptacle, with backnut, cadmium plating, male solder contacts, pos X; 85100E1811PX50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E1811PX50
Product Length/Depth
32.7 mm
Product Height
33.7 mm
Product Width
33.7 mm
Product Weight
31.6 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Backnut
Connector accessory option
Delivered with connector
Connector orientation
X
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Pin (Male)
Contact type
Solder Cup
Coupling type
1/3 Bayonet
Layout
11
Plating
Cadmium
Shell material
Aluminium
Shell size
18
Operating temperature - max
125 °C
Operating temperature - min
-40 °C
Receptacle type
Square Flange Receptacle
Number Of Contacts
11
Number of cavity #16
11
Feature: MIL-DTL-26482 SI qualified square flange receptacle with backnut. Business Impact: Provides proven, trustworthy performance in mission-critical applications, reducing field failures and maintenance costs. Application: Aerospace, defense, and rugged industrial machinery where reliability is non-negotiable. Feature: 11 solder cup contacts in a compact layout. Business Impact: Enables straightforward harness termination and robust, low-resistance electrical paths, shortening assembly time and lowering assembly errors. Application: Panel-to-cable connections in tight control panels and instrumentation enclosures. Feature: Cadmium plating on an aluminum shell. Business Impact: Improves corrosion resistance and environmental durability, extending service life in aggressive environments. Application: Equipment exposed to humidity, salt spray, or high-temperature cycling. Feature: 1/3 bayonet coupling with straight backshell. Business Impact: Fast, secure mating with vibration resistance and reduced risk of incomplete engagement. Application: Mobile or airborne platforms and equipment operating in dynamic conditions. Feature: Shell size 18, light 31.6 g and compact footprint. Business Impact: Space-efficient mounting on crowded panels without compromising strength or accessibility. Application: Space-constrained control panels and remote I/O enclosures. Feature: Operating temperature range -40 °C to 125 °C. Business Impact: Maintains electrical performance across extreme temperatures, reducing thermal-related failures and downtime. Application: Outdoor, industrial, and military environments with wide temperature swings.
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FAQs
The 85100E1811PX50 is designed for backnut square flange mounting with MIL-DTL-26482 Series I follow-up. It uses 11 solder cup contacts and a 1/3 bayonet coupling, oriented X, to simplify panel mounting and mating alignment. Ensure panel cutouts and mounting holes match the 33.7 mm width/height footprint and that the backnut is tightened to spec to maintain seal and alignment.
Key specs include 11 contacts with solder cup termination, aluminum shell size 18, cadmium plating, straight backshell, and operating temperature from -40 °C to 125 °C. It is a square flange receptacle with backnut, delivering reliable electrical performance under vibration and temperature cycling typical of aerospace and industrial environments.
Yes. It is MIL-DTL-26482 SI qualified and REACH compliant, with an aluminum shell, cadmium plating, and a robust 1/3 bayonet coupling. The -40 to 125 °C operating range supports extreme conditions found in aerospace, defense, and heavy industry, while the compact footprint aids installation in space-limited panels.
The 85100E1811PX50 is MIL-DTL-26482 SI qualified, ensuring aerospace-grade performance. It also lists REACH as an environmental condition, indicating compliance with chemical safety requirements. If your program requires additional RoHS considerations, verify with the latest supplier data to ensure alignment with regulatory mandates.
Plan for periodic inspection of the cadmium-plated contacts and mating surfaces to prevent corrosion-related degradation. The solder cup terminations favor durable, serviceable terminations, but field maintenance should respect torque on mounting hardware and ensure bayonet coupling remains secure after vibration exposure. Availability of spare backshells and compatible mating plugs should be confirmed in procurement to minimize downtime.