Eaton 85100A128SX50 Receptacle - MIL-DTL-26482 SI Qualified
Part Number: 85100A128SX50
Quick Summary
Eaton 85100A128SX50 Receptacle is a MIL-DTL-26482 SI qualified connector for aerospace and heavy industrial automation. Engineers often struggle with durable mating interfaces that endure temperature swings and harsh environments. This square flange receptacle carries MIL-DTL-26482 SI qualification and REACH compliance for dependable field use. The design pairs cadmium plating with an aluminium shell and a 1/3 Bayonet coupling for fast, reliable assembly. With eight solder cup contacts in a compact 41 mm length, it supports secure power and signal pathways while keeping lifecycle costs predictable. The orientation X and straight backshell further simplify panel layouts for OEMs and service teams.
Product Information
Extended Description
85100A128SX50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos X; 85100A128SX50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100A128SX50
Product Length/Depth
41 mm
Product Height
26.5 mm
Product Width
26.5 mm
Product Weight
18.9 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Adaptor
Connector accessory option
Delivered with connector
Connector orientation
X
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Socket (Female)
Contact type
Solder Cup
Coupling type
1/3 Bayonet
Plating
Cadmium
Shell material
Aluminium
Shell size
12
Operating temperature - max
125 °C
Operating temperature - min
-40 °C
Receptacle type
Square Flange Receptacle
Number Of Contacts
8
Number of cavity #20
7
The aluminium shell with cadmium plating delivers a lightweight yet corrosion-resistant enclosure, improving durability in aerospace and industrial environments while reducing weight-related structural loads. This translates to longer service intervals and lower maintenance costs in challenging locations. The 1/3 Bayonet coupling enables quick, repeatable mating with strong vibration resistance, accelerating field assembly and minimizing downtime during panel changes. Eight solder cup contacts provide robust power and signal paths in a compact footprint, simplifying wiring schemes and reducing the part count on tight installations. The square flange receptacle with a straight backshell adaptor supports straightforward panel mounting and alignment, enabling faster installation and fewer rework scenarios. Operating from -40 to 125 °C ensures performance across extreme environments, while REACH compliance aligns with modern procurement expectations and regulatory stewardship. Delivered with the connector reduces second-step assembly tasks, improving overall project timelines. The combination of cadmium plating, aluminium construction, and precise mechanical fit underpins predictable lifecycle costs and lower total cost of ownership in both production lines and service shops. In practice, engineers gain reliable mating, simplified inventory planning, and a clear path to compliance for aerospace and industrial automation programs.
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FAQs
Compatibility with Souriau 851 series modules is straightforward; this receptacle uses a square flange panel mount and a straight backshell adaptor, reducing alignment issues. Ensure mating with compatible 851 series contacts, verify the 1/3 Bayonet coupling engages properly, and maintain torque guidelines to avoid deformation. The eight solder cup contacts simplify wire termination in tight spaces.
1/3 Bayonet coupling provides quick mate-and-unmate action while resisting vibration once seated. In practice, this reduces field maintenance time and improves downtime metrics. For reliable performance, inspect the bayonet lugs and ensure the backshell is clean, lubricated as required, and the orientation is correct (X) to prevent misalignment.
MIL-DTL-26482 SI qualification is widely used in aerospace and defense programs for interconnect reliability under vibration, EMI, and temperature cycling. This receptacle meets that standard, supporting interchangeability with compatible parts and enabling consistent procurement and maintenance. Always verify project-level compliance and supplier QA documentation to satisfy program timelines.
The operating temperature range of -40 to 125 °C covers harsh factory floors and exposed outdoor equipment. The aluminium shell keeps weight down while cadmium plating provides corrosion protection. Check regulatory constraints on cadmium use in certain regions. Pair with appropriate mating connectors and follow RoHS/REACH guidelines to ensure safe, compliant operation across the lifecycle.
Cadmium plating and the aluminium shell contribute to corrosion resistance and lighter weight, translating to longer service intervals and lower maintenance costs. Ensure supply-chain compliance and proper disposal considerations for cadmium-containing parts. In field-installed systems, reduced downtime and fewer replacements improve total cost of ownership and equipment uptime.