Eaton 85100E2221PY50 MIL-DTL-26482 SI qualified
Part Number: 85100E2221PY50
Quick Summary
Eaton 85100E2221PY50 is a MIL-DTL-26482 SI qualified receptacle for rugged aerospace and industrial connectors. Engineers often face mounting tolerances and compatibility issues when integrating backshells and panel hardware in tight spaces. This solution carries MIL-DTL-26482 SI qualification and REACH compliance, with an aluminium shell and cadmium plating for corrosion resistance, while maintaining a lightweight profile. The 21-contact, square flange design with backnut and Y orientation supports seamless harness integration, reduced assembly time, and reliable performance across demanding environments. This combination supports long-term procurement stability and cost-effective maintenance in industrial automation and flight-critical applications.
Product Information
Extended Description
85100E2221PY50 Eaton: Square flange receptacle, with backnut, cadmium plating, male solder contacts, pos Y; 85100E2221PY50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E2221PY50
Product Length/Depth
34.5 mm
Product Height
40 mm
Product Width
40 mm
Product Weight
53 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Backnut
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
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 → Business Impact → Application: MIL-DTL-26482 SI qualified design ensures interoperability with existing harnesses and systems, reducing custom fabrication and field rework in military and aerospace assemblies. This translates to lower downtime and predictable installation costs in avionics bays and rugged machinery. Feature → 21 solder cup contacts in a 21-position layout delivers dense signal density while enabling straightforward soldered terminations in control panels and instrumentation racks. Application: high-pin-count sensors and field I/O enclosures where space is constrained and reliability is critical. Feature → Cadmium plating and aluminium shell provide corrosion resistance with light weight, reducing maintenance requirements and improving payload efficiency in outdoor equipment and offshore applications. Application: harsh environments and long service life. Feature → 1/3 Bayonet coupling with backnut and straight backshell supplies quick, vibration-resistant mating and secure panel retention, lowering assembly time. Application: production lines and mobile equipment subject to frequent assembly/disassembly. Feature → Operating range -40 to 125 °C supports broad temperature excursions in aerospace, rail, and industrial automation, ensuring stable connectivity in extreme climates. Application: heat-intensive environments and unconditioned facilities. Feature → Y orientation and defined layout with pre-loaded contacts streamline installation, improve traceability, and support consistent harness routing in complex machinery. Application: control cabinets and distributed systems where layout consistency is critical. Feature → Receptacle type Square Flange with Cadmium Plating and Aluminium Shell provides robust mechanical reliability, EMI resilience, and long-term durability. Application: high-vibration environments such as aircraft, heavy equipment, and energy infrastructure. These features collectively reduce total cost of ownership by improving installation speed, extending service intervals, and enhancing system reliability for industrial automation and aerospace programs.
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FAQs
The 85100E2221PY50 uses a square flange receptacle with a backnut and straight backshell, designed for reliable panel mounting and vibration resistance. The 21-contact layout and 1/3 Bayonet coupling provide secure mating in tight spaces and ease of field installation, supporting consistent harness alignment and efficient maintenance.
This model features 21 solder cup contacts with pin (Male) contact gender. The contacts are designed for solder termination, offering reliable signal integrity in high-density I/O panels, with a 22-shell size and compatible 1/3 Bayonet coupling for quick mating.
Yes. The connector supports an operating temperature range from -40 °C to 125 °C, accommodating extreme environmental conditions typical of aerospace, rail, and industrial machinery installations without compromising electrical performance or mechanical integrity.
The connector is MIL-DTL-26482 SI qualified, ensuring interchangeability and performance under strict military standards. It also complies with REACH environmental requirements, and uses cadmium plating on an aluminium shell to enhance durability and corrosion resistance in demanding applications.
The 85100E2221PY50 provides quick mating with 1/3 Bayonet coupling, a backnut for secure mounting, and a straight backshell, enabling fast field servicing and reduced downtime. Its high-density 21-pin arrangement, lightweight aluminium shell, and broad temperature range contribute to lower lifecycle costs and improved system uptime in automation or aerospace programs.