Eaton 85100E2039PY50 Receptacle - MIL-DTL-26482 SI
Part Number: 85100E2039PY50
Quick Summary
The Eaton Souriau 851 series MIL-DTL-26482 SI qualified receptacle delivers rugged interconnects for demanding aerospace and defense electronics. Engineers often struggle with mating reliability, backnut installation, and sealing in tight, harsh environments. This part is MIL-DTL-26482 SI qualified and REACH compliant, featuring cadmium plating and an aluminium shell for corrosion resistance. With a 34.5 mm depth and 39-pin configuration, it supports dense layouts while maintaining ease of assembly. The combination of backnut mounting, straight backshell, and Y-oriented connector allows flexible routing in compact enclosures, reducing installation time and field maintenance costs. In industrial automation contexts, this translates to higher uptime, traceable quality, and supplier confidence for programs with stringent environmental and regulatory requirements.
Product Information
Extended Description
85100E2039PY50 Eaton: Square flange receptacle, with backnut, cadmium plating, male solder contacts, pos Y; 85100E2039PY50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E2039PY50
Product Length/Depth
34.5 mm
Product Height
36.9 mm
Product Width
36.9 mm
Product Weight
46.8 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
39
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
39
Number of cavity #20
39
Feature → Business Impact → Application The MIL-DTL-26482 SI qualification delivers proven reliability in critical environments, reducing field failures and warranty costs while enabling compliant, traceable interconnections for defense, aerospace, and heavy industry. Application: high-stress avionics harnesses and rugged control systems in harsh climates. The 1/3 bayonet coupling with a backnut provides secure mating and quicker field assembly, cutting maintenance downtime and improving serviceability across remote installations. Application: aircraft panels, military ground systems, and offshore platforms where repeatable engagement matters. 39 pin Solder Cup contacts (Pin male) support robust signal and power transfer with straightforward soldering, promoting tighter layouts and easier rework. Application: compact assemblies requiring reliable solder connections in constrained spaces. Cadmium plating on an aluminium shell (Shell size 20) delivers corrosion resistance and light weight, sustaining performance from -40 °C to 125 °C. Application: environmental demanding applications such as aerospace, rail, and industrial automation. The Y orientation and straight backshell simplify routing and cable management, accelerating assembly and reducing risk of misalignment. Application: quick integration into multi-connector backplanes and modular frames. Delivered with connector ensures immediate readiness for integration, reducing procurement and lead times. Application: rapid deployment in programs with tight schedules and stringent supplier requirements.
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FAQs
Installation requires aligning the 85100E2039PY50 with the panel cutout designed for a size-20 shell, then threading the backnut to secure the receptacle. Ensure the Y orientation is correct, mating engages firmly, and the 34.5 mm depth clears adjacent components. Use standard Souriau tools and verify continuity after installation.
Key specs include 39 contacts with solder cup terminals, cadmium plating on an aluminium shell (Shell size 20), operating temperature from -40 °C to 125 °C, and MIL-DTL-26482 SI qualification. These features deliver reliable electrical performance, corrosion resistance, and stability under vibration and wide temperature swings.
Yes. This receptacle is designed to mate with standard MIL-DTL-26482 interfaces within the Souriau 851 series. Ensure the mating insert and shell size are compatible, and verify orientation (Y) and coupling method (1/3 bayonet) to ensure secure, repeatable engagement in assemblies and backplanes.
Key certifications and compliance include MIL-DTL-26482 SI qualification and REACH compliance. The cadmium plating provides corrosion resistance, and the aluminium shell contributes to weight savings and durability in environmental conditions typical of aerospace and industrial installations.
The combination of MIL-DTL-26482 qualification, robust 39-contact solder cup design, and durable coatings reduces field failures and maintenance cycles. Faster mating with the 1/3 bayonet and backnut simplifies servicing, while the sealed, temperature-tolerant design supports higher uptime and predictable lifecycle costs in demanding programs.