Eaton 85100AC2255PY50 Receptacle - MIL-DTL-26482 SI qualified
Part Number: 85100AC2255PY50
Quick Summary
85100AC2255PY50 is a MIL-DTL-26482 SI qualified receptacle designed for rugged electronic assemblies. Engineers often struggle with maintaining reliable mating and routing in harsh environments and tight installations. MIL-DTL-26482 SI qualification and REACH compliance help mitigate risk, while cadmium plating and an aluminium shell deliver durable resistance to corrosion and temperature variation. By selecting the Souriau 851 series, you gain proven compatibility with a 1/3 bayonet coupling, solder-cup contacts, and a square flange receptacle that streamlines integration in aerospace, defense, and industrial automation applications.
Product Information
Extended Description
85100AC2255PY50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, male solder contacts, pos Y; 85100AC2255PY50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100AC2255PY50
Product Length/Depth
53 mm
Product Height
40 mm
Product Width
40 mm
Product Weight
65.9 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Adaptor
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
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 MIL-DTL-26482 SI qualification → Business impact Enhanced reliability in severe environments → Application Aerospace, defense, and harsh-duty automation interfaces. The certification reduces integration risk and extends service life in mission-critical systems. Feature 55 solder cup contacts across 55 cavities → Business impact High-density wiring and robust terminations → Application Complex avionics, control panels, and industrial controllers, enabling faster assembly and lower assembly error rates. Feature Cadmium plating on an aluminium shell → Business impact Superior corrosion resistance and temperature stability → Application Outdoor, aircraft, and railway deployments where exposure to corrosive environments is a concern. Feature Aluminium shell size 22 and 53 mm depth → Business impact Lightweight yet rigid enclosure for easy handling and reduced system weight → Application Aerospace interiors and compact automation panels where space and weight matter. Feature 1/3 Bayonet coupling and straight backshell → Business impact Quick, reliable mating with reduced downtime → Application Field maintenance, on-site swaps, and modular system upgrades. Feature Connector orientation Y and delivered with connector → Business impact Simplified installation and consistent mating alignment → Application Retrofit projects and modular system expansions across Souriau 851 series ecosystems.
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FAQs
The 85100AC2255PY50 uses a square flange receptacle with a straight backshell and 1/3 bayonet coupling, delivering reliable mating in restricted spaces. It supports 55 solder cup contacts and an aluminium shell size 22, with 53 mm depth and 40x40 mm footprint. Ensure compatible mating hardware from the Souriau 851 series and respect the Y orientation for correct alignment during panel installation.
MIL-DTL-26482 SI qualification indicates a proven track record for high-reliability interconnections under stringent military and aerospace conditions. It supports robust sealing, structural integrity, and stable electrical performance across wide temperature ranges (as low as -40 °C and up to 125 °C). This reduces field failures and minimizes maintenance in demanding environments.
Yes. The 85100AC2255PY50 is part of the Souriau 851 series with a standardized 1/3 bayonet coupling and Y orientation. Its straight backshell and adaptor configuration are designed to mate with compatible Souriau connectors and backshells, enabling straightforward upgrades or expansions while preserving mating geometry and electrical performance.
Key compliance includes MIL-DTL-26482 SI qualification for high-reliability interconnections and REACH compliance for environmental safety. The finish uses cadmium plating, which is noted for corrosion resistance. When designing for restricted markets, verify cadmium usage policies and any regional RoHS-like restrictions that may affect your program unless your design adheres to applicable exemptions.
The 85100AC2255PY50 delivers improved uptime through reliable mating and environmental robustness, reducing field maintenance and replacement costs. Its high contact density and compatible Souriau 851 ecosystem simplify integration, lowering installation time and wiring errors. Over the system lifecycle, you gain predictable performance, fewer spare part variations, and an overall lower total cost of ownership.