Eaton 85100AC2255SZ50 Receptacle - MIL-DTL-26482 SI qualified
Part Number: 85100AC2255SZ50
Quick Summary
The Eaton 85100AC2255SZ50 Receptacle provides rugged MIL-DTL-26482 SI qualified performance for high-reliability aerospace and defense connections. Design teams often struggle with mating reliability, EMI shielding, and serviceability in harsh environments. MIL-DTL-26482 SI qualification ensures rugged performance, while REACH compliance supports global regulatory responsibilities. With a square flange receptacle, cadmium plating, and 55 solder-cup contacts, this Eaton Souriau series part simplifies integration and lifecycle cost. This design leverages an aluminium shell and 1/3 bayonet coupling for fast, secure mating in production and field repair. Engineers specify it where space, weight, and reliability matter, from industrial automation to aerospace harness assemblies. Overall, it delivers predictable performance, simplified sourcing, and lower total cost of ownership in challenging environments.
Product Information
Extended Description
85100AC2255SZ50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, female solder contacts, pos Z; 85100AC2255SZ50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100AC2255SZ50
Product Length/Depth
53 mm
Product Height
40 mm
Product Width
40 mm
Product Weight
69.8 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
55
Plating
Cadmium
Shell material
Aluminium
Shell size
22
Operating temperature - max
125 °C
Operating temperature - min
-40 °C
Receptacle type
Square Flange Receptacle
Number Of Contacts
55
Number of cavity #20
55
Feature: MIL-DTL-26482 SI qualification ensures the connector meets rigorous aerospace and defense reliability standards. Business Impact: This provides predictable mating cycles, robust EMI shielding, and resistance to vibration and dust, reducing field failures and warranty costs. Application: Ideal for Souriau 851 series square flange receptacles in harsh environments where reliability is non-negotiable. Feature: 55 contacts with solder cup terminations. Business Impact: Enables high-density harnessing without sacrificing solder integrity, improving signal integrity and reducing rework. Application: Suitable for complex avionics or industrial control systems requiring 55-position layouts. Feature: 1/3 bayonet coupling. Business Impact: Quick, secure mating with easy disengage during maintenance, shortening assembly time and minimizing downtime. Application: Fits tight or access-limited panels common in aerospace and rugged automation. Feature: Cadmium plating on an aluminium shell. Business Impact: Delivers corrosion resistance with lower weight, extending service life in aggressive environments and lowering replacement frequency. Application: Harsh climate applications, including outdoor industrial installations and aircraft systems. Feature: Backshell adaptor with straight orientation. Business Impact: Improves routing and strain relief while enabling straightforward installation and improved EMI/av shielding. Application: Ideal for straight-back installations and panel-mounted connectors in control cabinets. Feature: Delivered with connector and square flange receptacle form factor. Business Impact: Reduces sourcing complexity and accelerates project schedules by ensuring compatible, ready-to-mount hardware. Application: Quick integration into Souriau 851 family harnesses and 55-contact assemblies.
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FAQs
The 85100AC2255SZ50 uses a square flange receptacle with a straight backshell and 1/3 bayonet coupling. Plan panel cutouts to match shell size 22 and ensure mounting hardware aligns with the flange pattern. The connector ships with the connector assembly and supports solder-cup contacts, simplifying field termination and panel installation.
Operating temperature range is -40 °C to 125 °C, and the MIL-DTL-26482 SI qualification provides reliable mating under vibration and thermal cycling. Cadmium plating on an aluminium shell enhances corrosion resistance, while the solder-cup contacts maintain signal integrity in dynamic environments typical of aerospace and industrial automation.
Yes. It is part of the Souriau 851 series, with MIL-DTL-26482 SI qualification, and features a square flange receptacle design that is common in aerospace harness assemblies. The 55-contact configuration supports complex wiring needs, and the SI qualification indicates performance criteria aligned with stringent defense and aviation standards.
The product is REACH compliant, addressing chemical safety regulations in many global markets. While it does not list CE or IP ratings in the data, MIL-DTL-26482 SI qualification provides a high-reliability benchmark, and cadmium plating offers corrosion resistance in controlled environments where permitted.
With a robust aluminium shell, cadmium plating, and solder-cup contacts, the 85100AC2255SZ50 offers long service life in demanding environments and reduces maintenance cycles. The 55-contact, 1/3 bayonet design enables quick mating and disconnection, lowering field downtime and replacement costs while delivering consistent electrical performance.