Eaton 85100E2027PX50 Receptacle - MIL-DTL-26482 SI Qualified
Part Number: 85100E2027PX50
Quick Summary
The Eaton 85100E2027PX50 Receptacle provides secure MIL-DTL-26482 SI qualified connections for rugged industrial and aerospace assemblies. Engineers often wrestle with compatibility and reliability in EMI-rich environments, where mating interfaces must stay locked and conductive. This design is MIL-DTL-26482 SI qualified and REACH compliant, supporting demanding sectors while helping avoid costly field failures. With an aluminum shell, cadmium plating, and a compact 27-contact layout, it delivers robust performance in compact equipment while reducing inventory complexity. Using backnut backshell and straight orientation X provides straightforward installation and stable mating.
Product Information
Extended Description
85100E2027PX50 Eaton: Square flange receptacle, with backnut, cadmium plating, male solder contacts, pos X; 85100E2027PX50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E2027PX50
Product Length/Depth
34.5 mm
Product Height
36.9 mm
Product Width
36.9 mm
Product Weight
41.9 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
27
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
27
Number of cavity #20
27
MIL-DTL-26482 SI qualification is a core feature that translates to dependable mating in vibration-heavy platforms, reducing rework and boosting system uptime in aerospace, defense, and rugged industrial equipment. The 27 solder cup pins across 27 cavities deliver robust, trouble-free terminations with consistent electrical performance, minimizing intermittent signals and field maintenance costs. The aluminum shell with cadmium plating offers a lightweight, corrosion-resistant enclosure suitable for outdoor or aerospace environments, helping extend service life and reduce maintenance cycles. A 1/3 bayonet coupling paired with a straight backshell and backnut provides quick, secure mating under tight installation windows and high-vibration conditions, improving field readiness and installation efficiency. Finally, a wide operating temperature range from -40 °C to 125 °C ensures reliable operation across extreme climates, enabling common use cases from factory floors to remote deployments.
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FAQs
The 85100E2027PX50 is a square flange receptacle designed to mate with Souriau 851-series interfaces. It features a backnut backshell, X orientation, and a 27-contact layout with solder cup contacts, ensuring a secure, reliable connection within the 851-series ecosystem. Delivered with connector integration simplifies field compatibility and reduces assembly steps.
MIL-DTL-26482 SI qualification indicates adherence to stringent interface standards for reliability in vibration, temperature extremes, and EMI conditions. For the 85100E2027PX50, this means stable mating, consistent contact resistance, and dependable signal integrity across the operating range, reducing the risk of intermittent failures in aerospace, defense, and rugged industrial applications.
Yes. The 85100E2027PX50 Receptacle is designed for demanding sectors such as aerospace and defense, leveraging MIL-DTL-26482 SI qualification and a cadmium-plated aluminum shell for corrosion resistance, lightweight construction, and reliable performance under vibration and temperature extremes commonly encountered in those environments.
Cadmium plating provides corrosion resistance but requires proper environmental controls and periodic inspection for wear or plating integrity. For the 85100E2027PX50, regular visual checks on the mating interface, torque verification on the backnut, and ensuring clean, dry connectors help maintain electrical performance and prolong service life in challenging environments.
Start by aligning the receptacle with the mating partner using the X orientation. Bring the backnut into position and engage the 1/3 bayonet coupling until snug, then rotate to secure the bayonet lugs. Verify contact delivery is loaded and perform a final electrical inspection. The straight backshell simplifies routing and minimizes alignment time during installation.