Eaton 85100A128PY50 Receptacle - MIL-DTL-26482 SI Qualified
Part Number: 85100A128PY50
Quick Summary
The Eaton Souriau 85100A128PY50 is a MIL-DTL-26482 SI qualified square flange receptacle that delivers rugged, reliable connectivity for harsh environments in aerospace, defense, and industrial automation. This high-integrity connector is designed to withstand vibration, temperature extremes, and exposure risks common in field deployments. Many engineers struggle with compatibility gaps between backshell options and mounting configurations, which can slow assemblies and extend downtime. The 85100A128PY50 includes a straight adaptor backshell, cadmium plating for corrosion resistance, and a Y-oriented receptacle design that simplifies harness routing. With eight solder-cup contacts and aluminium shell, it offers robust electrical performance while keeping weight modest. The result is faster installation, lower maintenance costs, and improved certification-ready integration for mission-critical systems.
Product Information
Extended Description
85100A128PY50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, male solder contacts, pos Y; 85100A128PY50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100A128PY50
Product Length/Depth
41 mm
Product Height
26.5 mm
Product Width
26.5 mm
Product Weight
17.8 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Adaptor
Connector accessory option
Delivered with connector
Connector orientation
Y
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Pin (Male)
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
6
MIL-DTL-26482 SI qualification provides rugged, MIL-spec reliability for critical connections in aerospace, defense, and industrial automation. This certification translates into predictable mating cycles, enhanced durability, and lower lifecycle costs in demanding environments. Square flange receptacle design with a straight adaptor backshell simplifies installation and ensures precise alignment with panel cutouts. The straight backshell and Y orientation streamline harness routing and reduce assembly error in tight spaces. An aluminium shell with cadmium plating offers a balanced combination of weight savings and corrosion resistance in harsh environments. Cadmium plating provides robust sacrificial protection while the aluminium shell aids heat dissipation during operation. Eight solder cup contacts deliver reliable electrical performance with easy hand-soldering or automated attachment. The solder-delivery arrangement is compatible with standard wire harness terminations, supporting fast field repairs. 1/3 bayonet coupling provides quick, secure mating with strong vibration resistance, reducing downtime during maintenance and field upgrades. The combination of backshell adaptor and connector orientation supports flexible installation across equipment layouts. Delivered with connector and its associated shell size and features ensure readiness for production lines and inventory management in diverse industrial settings.
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FAQs
Installation starts with selecting the correct panel cutout for the square flange receptacle, then aligning the straight adaptor backshell with the mounting holes. Install the receptacle with the Y orientation as specified, secure the flange, and complete mating using the 1/3 bayonet coupling. Ensure solder cup contacts are clean and properly soldered to the conductors. Finally, verify continuity and environmental seal integrity after assembly.
MIL-DTL-26482 SI qualification indicates compliance with a military-standard interface for highly reliable circular and rectangular connectors, including vibration, temperature, and environmental performance. For the 85100A128PY50, this translates to robust mating integrity, consistent electrical performance across duty cycles, and suitability for mission-critical applications in aerospace and defense environments.
Yes. The 85100A128PY50 is listed with REACH-related environmental considerations, indicating compliance with REACH regulations for chemical substances used in the connector materials and finishes. This supports safer procurement for regulated industries and helps simplify regulatory reporting.
This square flange receptacle is well-suited for aerospace, defense, and industrial automation applications requiring MIL-spec reliability, moderate-weight aluminium construction, and corrosion resistance from cadmium plating. The 8-contact, solder cup configuration supports compact, high-pin-count connections in rugged environments with limited space and demanding vibration profiles.
Benefits include predictable lifecycle performance thanks to MIL-DTL-26482 SI qualification, straightforward field maintenance due to solder cup contacts, and a backshell adaptor that simplifies installation and upgrades. The aluminium shell reduces weight, while cadmium plating enhances corrosion resistance, contributing to lower replacement costs and reduced downtime over the connector’s service life.