Eaton 85100AC2039SZ50 Receptacle - MIL-DTL-26482
Part Number: 85100AC2039SZ50
Quick Summary
85100AC2039SZ50 is a square flange receptacle for MIL-DTL-26482 SI qualified connections in aerospace and industrial automation. Engineers often struggle with unreliable mating, misalignment in vibration, and corrosion risk under temperature swings. This Eaton Souriau design aligns with MIL-DTL-26482 SI qualification and REACH compliance, delivering durable performance from -40 to 125 °C and cadmium plating. Pre-loaded, solder-cup contacts and a straight 1/3 bayonet backshell simplify field installation while reducing maintenance time. With a 39-position layout and a lightweight aluminium shell, it supports high-density connectivity for aerospace, military, and industrial control systems.
Product Information
Extended Description
85100AC2039SZ50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos Z; 85100AC2039SZ50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100AC2039SZ50
Product Length/Depth
53 mm
Product Height
36.9 mm
Product Width
36.9 mm
Product Weight
58 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Adaptor
Connector accessory option
Delivered with connector
Connector orientation
Z
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Socket (Female)
Contact type
Solder Cup
Coupling type
1/3 Bayonet
Layout
39
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
39
Number of cavity #20
39
Feature: MIL-DTL-26482 SI qualified design ensures traceable qualification and rugged performance. Business Impact: lowers compliance risk and field failure rates, enabling reliable deployments in critical environments. Application: aerospace assemblies and defense equipment where certified interconnects are mandatory. Feature: 39 contacts in a compact square flange receptacle. Business Impact: increases I/O density without enlarging panel footprint, reducing enclosure size and material costs. Application: control cabinets, robotics, and avionics where high-channel counts are required. Feature: 1/3 bayonet coupling with straight backshell. Business Impact: fast, tool-free mating and secure retention even in vibration, decreasing assembly time and maintenance downtime. Application: field serviceable systems and rugged machinery. Feature: Cadmium plating on an aluminium shell. Business Impact: provides corrosion resistance and weight savings, extending service life in harsh or outdoor environments. Application: offshore, aerospace, and semi-exposed industrial settings. Feature: Solder Cup contact delivery and socket (female) contacts. Business Impact: simplifies solder termination and PCB integration, improving reliability of signal and low-power connections. Application: panel-mounted interfaces and modular automation blocks. Feature: Operating temperature range -40 °C to 125 °C. Business Impact: enables operation across extreme environments without additional enclosure cooling. Application: aerospace, rail, and heavy industry where ambient conditions vary widely. Feature: Delivered with connector and loaded contacts for ready-to-install use. Business Impact: reduces assembly steps and inventory handling, delivering faster time-to-value. Application: OEMs seeking streamlined procurement and faster time-to-market.
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FAQs
This model is supplied as a pre-loaded receptacle with solder cup contacts and a straight 1/3 bayonet coupling. For installation, ensure panel cutouts support a 53 mm depth and the square flange aligns with the mating partner. The Z orientation and adaptor backshell enable straightforward integration in compact layouts, reducing misalignment and troubleshooting time.
Key specs include 39 contacts across a 53 mm length, 36.9 mm width, and 36.9 mm height, aluminium shell size 20, cadmium plating, and solder cup contact type. The connector supports a temperature range from -40 °C to 125 °C and utilizes a 1/3 bayonet coupling for secure mating in vibration-prone environments.
Yes. It is designed as part of the Souriau 851 family and uses standard 851 series mounting and contact layouts. This compatibility enables streamlined replacements, easier spares management, and consistent performance across mixed connector assemblies in aerospace and industrial systems.
The 85100AC2039SZ50 is MIL-DTL-26482 SI qualified and REACH compliant, supporting requirements for aerospace, defense, and compliant industrial equipment. While no IP rating is specified in the data, the cadmium plating and aluminium shell provide corrosion resistance appropriate for many challenging environments.
Benefits include reduced field maintenance due to high reliability, faster assembly from pre-loaded contacts, and higher I/O density in compact panels. The combination of durable construction, wide operating temperature range, and standard Souriau interfaces translates to lower lifecycle costs and smoother regulatory audits over time.