Eaton 85100A2027SY50 Receptacle - MIL-DTL-26482 SI
Part Number: 85100A2027SY50
Quick Summary
Eaton Souriau 851 series MIL-DTL-26482 SI qualified receptacle connectors enable rugged interconnects for aerospace and defense applications. Design engineers often face tight specs, corrosion considerations, and assembly timelines that impact system reliability. This solution aligns with MIL-DTL-26482 standards and REACH environmental compliance, offering a cadmium-plated aluminium shell for durability and long service life. By standardizing on square flange receptacles like the 85100A2027SY50, you gain predictable mating, easier field maintenance, and faster qualification cycles, with reduced risk when integrating high-density 27-cavity connections into complex assemblies. The result is lower total cost of ownership and improved uptime across mission-critical equipment.
Product Information
Extended Description
85100A2027SY50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos Y; 85100A2027SY50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100A2027SY50
Product Length/Depth
44 mm
Product Height
36.9 mm
Product Width
36.9 mm
Product Weight
44.9 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
Socket (Female)
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: 27 solder cup contacts deliver a dense circuit layout with reliable, low-impedance connections. Business Impact: Improved signal integrity and power delivery reduce the need for additional interconnects, lowering BOM complexity and assembly time in avionics and industrial control panels. Application: Ideal for high-density panels in aerospace and rugged manufacturing environments. Feature: 1/3 bayonet coupling provides fast, secure mating with vibration resistance. Business Impact: Shorter assembly cycles and enhanced reliability in high-vibration applications, delivering faster throughput in assembly lines and field deployments. Application: Aircraft, ground support equipment, and mobile machines. Feature: Cadmium plating on an aluminium shell offers corrosion protection with lightweight performance. Business Impact: Extended service life in harsh environments while keeping weight budgets in check, reducing maintenance cycles and replacement costs. Application: External enclosures and outdoor systems. Feature: Square flange receptacle with adaptor backshell and straight orientation (Y) simplifies panel mounting and cable routing. Business Impact: Easier installation, consistent alignment, and reduced risk of mis-mating during field service. Application: Panel assemblies and modular systems across aerospace and industrial automation. Feature: Operating range -40 °C to 125 °C supports extreme thermal conditions. Business Impact: Maintains electrical integrity across cold starts and hot operating cycles, improving uptime. Application: Equipment exposed to temperature swings in aerospace, defense, and harsh-industrial environments.
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FAQs
Install with the corresponding Souriau 851 series plug, align the Y orientation, and engage the 1/3 bayonet coupling until it seats. Use the adaptor backshell to route cables cleanly, ensuring the solder cup contacts are mated properly and the assembly is secured to the panel to maintain vibration resistance in demanding environments.
The 85100A2027SY50 is designed to mate with Souriau 851-series plug equivalents that support MIL-DTL-26482 with 27 cavities. Ensure the mating connector shares the same backshell configuration, contact type (Solder Cup), and coupling scheme (1/3 Bayonet) for reliable electrical and mechanical performance.
Yes. This receptacle is MIL-DTL-26482 SI qualified and adheres to REACH environmental standards, with cadmium plating providing corrosion resistance on an aluminium shell suitable for wide operating temperatures. Always verify any additional customer or program-specific compliance requirements during integration.
Absolutely. The 85100A2027SY50 features a square flange receptacle design, 27 solder cup contacts, 1/3 bayonet coupling, and an aluminium shell with cadmium plating, optimized for high-vibration, wide-temperature environments typical of aerospace and defense platforms.
Standardization on a single 851-series square flange receptacle reduces part variety, simplifies assembly, and shortens qualification cycles. The 27-contact density improves interconnect efficiency, while the lightweight aluminium shell lowers system weight. Combined with reliable MIL-DTL-26482 performance and REACH compliance, this can lower lifecycle costs and boost uptime in high-volume programs.