Eaton 85100E123S50 Receptacle - MIL-DTL-26482 SI qualified
Part Number: 85100E123S50
Quick Summary
The Eaton 85100E123S50 Receptacle provides MIL-DTL-26482 SI qualified performance for rugged industrial and aerospace use. Engineers face reliability challenges in harsh environments and with mixed contact layouts, which can drive field failures and maintenance costs. MIL-DTL-26482 SI qualification, REACH compliance, and cadmium plating underpin proven performance in demanding applications. This compact, aluminium-shell connector offers a backnut option and a 1/3 bayonet coupling to simplify installation, while delivering a robust, field-ready interface for 3-contact arrangements. For procurement and design teams, the combination of durability, compatibility with Souriau 851-series components, and a predictable maintenance profile translates to lower lifecycle costs and safer, more dependable systems.
Product Information
Extended Description
85100E123S50 Eaton: Square flange receptacle, with backnut, cadmium plating, female solder contacts, pos N; 85100E123S50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E123S50
Product Length/Depth
32.7 mm
Product Height
26.5 mm
Product Width
26.5 mm
Product Weight
14.7 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Backnut
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
3
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
3
Number of cavity #16
3
Feature: MIL-DTL-26482 SI qualification and cadmium plating. Business Impact: Delivers superior environmental resistance and extended service life in corrosive or rugged settings. Application: Aerospace panels and heavy machinery where reliability is non‑negotiable. Feature: Aluminium shell with a compact shell size 12. Business Impact: Reduces weight and allows tighter packaging without sacrificing performance. Application: Space-constrained control housings and mobile equipment. Feature: 1/3 Bayonet coupling and backnut option. Business Impact: Enables fast mating and secure retention, lowering maintenance time in the field. Application: Aircraft, ground vehicles, and automation cabinets requiring rapid, repeatable connections. Feature: Socket (Female) solder cup contacts, 3 contacts in 3 cavities. Business Impact: Stable solder terminations and consistent electrical performance across cycles. Application: Instrumentation, power, and sensor networks in harsh environments. Feature: Environment and ratings: Operating temperature -40 °C to 125 °C and REACH compliance. Business Impact: Ensures operation across wide temperature ranges and regulatory alignment. Application: Industrial automation, robotics, and defense equipment. Feature: Delivered with connector, orientation N, and square flange receptacle design. Business Impact: Simplifies installation and mating alignment, reducing assembly risk. Application: OEM panels and fielded systems using Souriau 851-series components.
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FAQs
For installation, use the backnut to secure the square flange to the panel. Align the connector with orientation N to ensure proper mating and avoid cross-threading. The 32.7 mm length and 26.5 mm width/height support compact panel layouts, while the 3-contact, 3-cavity configuration keeps wiring organized. Ensure cadmium-plated contacts are clean and solder cups are prepared for reliable terminations.
MIL-DTL-26482 SI qualification indicates a high level of environmental and mechanical performance, including vibration, shock, and humidity resistance. For this receptacle, it translates to dependable mating integrity in demanding aerospace and industrial environments, reducing the likelihood of intermittent connections and field failures over the product life.
Yes. The 85100E123S50 is a square flange receptacle designed for the Souriau 851 series ecosystem, featuring a 1/3 bayonet coupling and N-orientation. This aids consistent mating with compatible plug components, simplifies inventory management, and supports quick field swaps without reworking panel interfaces.
The connector supports an operating temperature range from -40 °C to 125 °C, suitable for extreme indoor and outdoor environments. It is REACH compliant and uses cadmium plating for corrosion resistance, making it appropriate for harsh industrial, aerospace, and defense applications where environmental exposure and regulatory compliance matter.
Typical use cases include rugged automation panels, aerospace systems, ground support equipment, and defense instrumentation. Engineers rely on the 85100E123S50 for reliable 3-contact connections in space-constrained enclosures, where fast mating, strong retention, and long-term durability translate to improved uptime and lower maintenance costs.