Eaton 85100A2027S50 Receptacle - MIL-DTL-26482 SI Qualified
Part Number: 85100A2027S50
Quick Summary
85100A2027S50 is a MIL-DTL-26482 SI qualified square flange receptacle for rugged aerospace and defense harnesses. It addresses the common challenge of maintaining secure, vibration-resistant connections in harsh environments where loose contacts can cause system failures. The design is backed by MIL-DTL-26482 SI qualification, REACH compliance, and cadmium plating for corrosion protection, supporting long life in demanding service. By leveraging this Eaton Souriau connector, procurement teams can simplify part selection, reduce replacement cycles, and improve supply chain resilience, while integrators gain a reliable platform for high-density interconnects in compact bays. This part complements other 851 series solutions and enables scalable, compliant electrical harnessing in complex assemblies.
Product Information
Extended Description
85100A2027S50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos N; 85100A2027S50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100A2027S50
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
N
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 → Business Impact → Application: 27-position contact layout provides high-density interconnects, enabling compact harness design and reduced panel space while preserving signal integrity in vibration-prone environments such as aircraft and ground vehicles. This supports cost-effective installation and maintenance, with predictable performance across mission profiles. Feature → Business Impact → Application: Cadmium plating on an aluminium shell delivers robust corrosion resistance in saline and humid environments, extending service life and reducing maintenance downtime in aerospace, defense, and industrial automation applications. Feature → Business Impact → Application: 1/3 Bayonet coupling affords quick, secure mating and field readiness, minimizing aircraft turnaround times and enabling rapid replacement or upgrades in mission-critical systems. Feature → Business Impact → Application: Solder Cup contact delivery (Loaded) simplifies wiring processes, reduces assembly time, and improves reliability in high-vibration assemblies such as avionics bays and vehicle harnesses. Feature → Business Impact → Application: 44 mm depth, 36.9 mm height, and 36.9 mm width with a 20 shell size balance compact form with robust mechanical strength, supporting tight panel installations in constrained spaces. Feature → Business Impact → Application: REACH compliance aligns with environmental and regulatory expectations for modern defense and aerospace programs, reducing compliance risk while maintaining performance. Feature → Business Impact → Application: Straight backshell with adaptor option enables flexible installation and seamless integration into existing harness routes, improving overall installation efficiency and retrofit capabilities.
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FAQs
The 85100A2027S50 is qualified to MIL-DTL-26482 SI, enabling reliable interconnects in aerospace and defense harnesses. It uses a 27-contact configuration with solder cup contacts, a straight backshell, and an adaptor option to simplify integration with existing harness routes and panel layouts.
This square flange receptacle supports 27 contacts in a 27-position layout, with 27 cavities. The socket (female) solder cup contacts are loaded for immediate wiring, facilitating high-density interconnects in restricted spaces such as avionics bays and vehicle installations.
Operating temperature ranges from -40 °C to 125 °C, suitable for extreme aerospace and defense environments. The design uses cadmium plating on an aluminium shell and adheres to REACH environmental requirements, supporting long-term reliability and regulatory compliance in harsh service conditions.
Yes, the product is delivered with connector options and is compatible with the adaptor backshell for flexible installation. The configuration supports straight mating with the N orientation and is designed to simplify installation in existing harness systems while maintaining secure, vibration-resistant connections.
Aerospace and defense are the primary beneficiaries due to extreme vibration, environmental exposure, and stringent reliability requirements. The 27-contact, cadmium-plated aluminium shell, and MIL-DTL-26482 SI qualification also make it suitable for industrial automation, naval systems, and rugged unmanned platforms where robust, high-density interconnects are essential.