Eaton 85100E2027PY50 Receptacle - MIL-DTL-26482 SI
Part Number: 85100E2027PY50
Quick Summary
Eaton Souriau 851 series MIL-DTL-26482 SI qualified receptacle delivers rugged interconnects for aerospace and industrial equipment. Engineers wrestle with harsh environments, long lead times, and maintenance demands that disrupt critical systems. Key certifications include MIL-DTL-26482 SI qualification and REACH compliance to support regulated aerospace and industrial programs. Designed for 27-position square-flange mating with cadmium plating and a backnut backshell, it helps reduce panel clutter while boosting reliability and uptime. The combination of lightweight aluminium shell, solder cup contacts, and a straight backshell supports streamlined installation in tight panel enclosures. In practice, this connector enables faster assembly, lower maintenance costs, and improved asset availability across demanding applications.
Product Information
Extended Description
85100E2027PY50 Eaton: Square flange receptacle, with backnut, cadmium plating, male solder contacts, pos Y; 85100E2027PY50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E2027PY50
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
Y
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
Feature → MIL-DTL-26482 SI qualification and cadmium plating provide proven MIL-spec compatibility and corrosion resistance, reducing field failures and warranty costs. Business Impact → Improves long-term reliability in military and aerospace environments, supporting compliance and lowering total cost of ownership. Application → Suitable for aircraft junctions, ground-support equipment, and rugged industrial panels where duty cycles are high and maintenance access may be limited. Feature → 27-position layout with 1/3 bayonet coupling and pin solder cup contacts delivers secure, vibration-resistant terminations. Business Impact → Field-installable yet robust connections minimize rework and downtime, accelerating assembly lines and service calls. Application → Ideal for 27-circuit harnesses in avionics racks and automated control cabinets with frequent mating cycles. Feature → Backnut backshell and aluminium shell provide lightweight, heat-dissipating housing with straightforward panel mounting. Business Impact → Reduces overall system weight and simplifies thermal management while maintaining EMI/EMC performance. Application → Effective in avionics bays, rail controls, and industrial PLC panels where weight and space are at a premium. Feature → Operating temperature range from -40 °C to 125 °C ensures reliability in extreme environments. Business Impact → Extends service life in harsh climates, minimizing unplanned maintenance and replacements. Application → Defence, railway, offshore, and process automation gear exposed to wide thermal swings benefit from this capability. Feature → Delivered with connector and Y orientation support streamlines procurement and installation. Business Impact → Facilitates faster wiring, reduces part-number fragmentation, and improves site readiness. Application → Panel assemblies and equipment cabinets in critical systems where speed and accuracy matter.
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FAQs
When mounting the 85100E2027PY50, ensure a square flange receptacle cutout sized for a 36.9 mm plane with the backnut backshell installed. Use the 1/3 bayonet coupling to achieve a secure, vibration-resistant connection and route conductors via solder cup contacts for robust, serviceable terminations. Confirm orientation is Y as specified and verify a 34.5 mm depth clearance for proper insertion.
MIL-DTL-26482 SI qualification denotes adherence to military interconnect standards for mechanical and environmental performance, including vibration, thermal cycling, and sealing requirements. For this model, key specs include 27 contacts, cadmium plating, aluminium shell, 1/3 bayonet coupling, backnut, and solder cup contacts, with operational temperature from -40 to 125 °C.
Yes. The 85100E2027PY50 is REACH compliant, supporting regulated applications in aerospace, defense, and industrial machinery. Its cadmium plating and aluminium shell are chosen for durability and weight considerations, while the 27-contact configuration aligns with common avionics and control-panel harnesses found in both aircraft and industrial automation environments.
Using MIL-DTL-26482 SI qualified connectors reduces maintenance intervals and field failures by delivering proven performance under vibration and thermal stress. The 27-contact, solder-cup configuration provides reliable terminations that resist loosening, while the backnut backshell and aluminium housing minimize weight and thermal buildup, contributing to longer service life and lower lifecycle costs.
The 85100E2027PY50 is designed to pair with other 851-series components via the same 27-contact layout and 1/3 bayonet coupling, offering consistent mating geometry and orientation (Y). Delivered with connector, it supports streamlined procurement and system-level compatibility across cabinets, panels, and harness assemblies, simplifying spares management and field upgrades.