Eaton 85100A2041PW50 Receptacle - MIL-DTL-26482 SI
Part Number: 85100A2041PW50
Quick Summary
Eaton 85100A2041PW50 is a MIL-DTL-26482 SI qualified square flange receptacle designed for rugged, field-ready electrical connections in aerospace, defense, and industrial equipment. Engineers often struggle with achieving reliable sealing and footprint compatibility across legacy panels, leading to design delays and increased inventory. This connector delivers a compact aluminium shell with cadmium plating and a 41-contact configuration, aligning with the Souriau 851 series footprint. With REACH compliance and proven MIL-spec performance, it supports high-vibration environments while enabling straightforward maintenance and lifecycle management. The combination of straight backshell, W orientation, and ready-to-install configuration reduces panel integration time and supports cost-effective spares strategies for critical systems.
Product Information
Extended Description
85100A2041PW50 Eaton: Square flange receptacle, straight adaptor, cadmium plating, male solder contacts, pos W; 85100A2041PW50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100A2041PW50
Product Length/Depth
44 mm
Product Height
36.9 mm
Product Width
36.9 mm
Product Weight
46.3 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
41
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
41
Number of cavity #20
41
Feature → Business Impact → Application: MIL-DTL-26482 SI qualification provides MIL-spec reliability in harsh environments, reducing field failures and warranty costs while enabling compliant defense and aerospace assemblies. Application: ideal for rugged panels in aircraft, defense, and industrial automation where reliability under vibration and temperature extremes is essential. Feature → Business Impact → Application: 41 contacts in a square flange receptacle with a 20 shell size and cadmium plating enhances contact density and corrosion resistance, improving signal integrity and longevity in harsh environments. Application: used in control panels, weapon systems, and aerospace ground support equipment requiring dense interconnects with robust protection. Feature → Business Impact → Application: 1/3 bayonet coupling and straight backshell simplify installation and maintenance, cutting assembly time by minutes per connector and reducing现场人员培训成本. Application: fielded systems and test benches where quick mating and unmating are critical. Feature → Business Impact → Application: solder cup contacts (Pin Male) provide reliable wave soldering compatibility and ease of replacement, lowering service downtime. Application: high-density power and signal interconnects in automated machinery. Feature → Business Impact → Application: aluminium shell and cadmium plating deliver lightweight yet durable construction with corrosion resistance, extending service life in coastal or humid facilities. Application: factory floors, shipboard electronics, and outdoor enclosures where moisture exposure is a concern. Feature → Business Impact → Application: Delivered with connector option ensures immediate compatibility and reduces procurement lead time, supporting faster product ramp and fewer assembly errors. Application: system integrators seeking plug-and-play interconnects for quick deployment. Note: 85100A2041PW50’s compatibility with the Souriau 851 family and its defined footprint helps avoid costly redesigns; however, confirm mating compatible parts for non-Souriau variants.
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FAQs
This 851 series receptacle uses a 1/3 bayonet coupling with a straight backshell. Ensure shell size matches the panel cutout (size 20), align connector orientation to W, and use the solder cup contacts for reliable wave solder or hand-soldered terminations. Mating with the corresponding plug requires correct alignment and a secure bayonet twist for a full, vibration-resistant seal.
It features 41 contacts, pin (male) gender, solder cup contact type, cadmium plating, and an aluminium shell. The shell size is 20, with overall dimensions around 44 mm length and 36.9 mm height and width. Operating temperature ranges from -40 °C to 125 °C, and it uses a straight backshell with a W orientation and 1/3 Bayonet coupling.
Yes. The 85100A2041PW50 is designed for the Souriau 851 series MIL-DTL-26482 family and shares the same footprint and shell size. Ensure the mating plug matches the 41-contact configuration and bayonet coupling, and verify the panel cutout and backshell orientation align with the device's 851 footprint for reliable interchangeability.
The part is MIL-DTL-26482 SI qualified, providing MIL-spec performance. It also lists REACH compliance for environmental safety. Note that no SIL, CE, or IP ratings are specified for this variant, so verify project-specific certification requirements if those standards are mandatory.
The connector weighs 46.3 g with a footprint of 44 mm length, 36.9 mm height, and 36.9 mm width. This compact yet robust design reduces panel space and weight in tight installations, contributing to lower enclosure costs and improved system density. Combined with MIL-spec reliability, it lowers maintenance downtime and spare part inventory over the product life cycle.