Eaton 85100A2221PW50 Souriau Receptacle - MIL-DTL-26482
Part Number: 85100A2221PW50
Quick Summary
Eaton 85100A2221PW50 is a MIL-DTL-26482 SI-qualified square flange receptacle for rugged aerospace connections. Engineers often struggle with compatibility gaps and unreliable performance when integrating interconnects in demanding environments. The design carries MIL-DTL-26482 SI qualification and REACH compliance, signaling robust interoperability and environmental responsibility. Cadmium plating and an aluminium shell deliver corrosion resistance across temperature swings, while the 1/3 bayonet coupling and 21-socket layout support fast, secure mating. Delivered with connector accessories, this solution reduces procurement steps and simplifies field maintenance, enabling more predictable program timelines and lower lifecycle costs for defense and aerospace programs.
Product Information
Extended Description
85100A2221PW50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, male solder contacts, pos W; 85100A2221PW50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100A2221PW50
Product Length/Depth
44 mm
Product Height
40 mm
Product Width
40 mm
Product Weight
51 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Adaptor
Connector accessory option
Delivered with connector
Connector orientation
W
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Pin (Male)
Contact type
Solder Cup
Coupling type
1/3 Bayonet
Layout
21
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
21
Number of cavity #16
21
Feature: MIL-DTL-26482 SI qualification with a 21-contact layout and 1/3 bayonet coupling. Business impact: Provides secure mating and high vibration resistance, reducing intermittent failures and maintenance in deployed systems. Application: Suited for high-reliability aerospace and defense interconnects where rapid, tool-free mating matters. Feature: Cadmium plating on an aluminium shell. Business impact: Offers robust corrosion protection and lightweight yet sturdy construction, supporting longer life in harsh environments. Application: Avionics enclosures, fielded equipment, and environmental conditions with wide temperature swings. Feature: Backshell adaptor and straight backshell with W orientation, delivered with connector. Business impact: Simplifies installation, minimizes additional parts sourcing, and ensures correct cable routing. Application: Assemblies needing precise orientation and reliable sealing. Feature: 21 solder cup contacts with pin (Male) contacts and 1/3 bayonet coupling. Business impact: Enables compact, reliable solder terminations and efficient assembly processes, reducing rework. Application: Dense interconnects in space-constrained avionics harnesses. Feature: Compact footprint and robust operating range. Business impact: 44 mm depth, 40 x 40 mm footprint, and -40 to 125 °C capability support flexible integration and extended lifecycle. Application: Military aircraft and industrial controls exposed to temperature extremes.
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FAQs
The 85100A2221PW50 uses a square flange receptacle with a straight backshell and 1/3 bayonet coupling. Installation involves aligning the mating connector, securing with the bayonet twist, and using the included adaptor/backshell as specified. The design delivers reliable alignment and simplified field maintenance, reducing rework and downtime in aircraft harness assemblies.
This receptacle features 21 solder cup contacts arranged across 21 cavities, with Pin (Male) contact delivery. It employs cadmium plating on an aluminium shell and supports operation from -40 °C to 125 °C, suitable for high-temperature aerospace environments. The 1/3 bayonet coupling ensures secure electrical mating under vibration.
Yes. It is MIL-DTL-26482 SI qualified, designed for high-vibration aerospace use, and offers REACH environmental compliance. Cadmium plating adds corrosion resistance, while aluminium shell keeps weight manageable. These features help ensure long-term reliability in demanding defense and aviation applications.
The key certification is MIL-DTL-26482 SI qualification, indicating adherence to military interconnect standards. REACH compliance is noted for environmental responsibility. The combination supports compliance-driven procurement and qualified supplier requirements in aerospace and defense programs.
The design reduces field maintenance through robust mating, corrosion resistance, and a simpler accessory configuration delivered with the connector. The 21-contact layout minimizes harness complexity, while the reliable 1/3 bayonet coupling lowers installation time, contributing to lower lifecycle costs and improved program timelines.