Eaton 85100E2027SZ50 Square Flange Receptacle - MIL-DTL-26482 SI
Part Number: 85100E2027SZ50
Quick Summary
Eaton 85100E2027SZ50 is a MIL-DTL-26482 SI qualified square flange receptacle used for rugged electrical connections in aerospace and industrial control. Engineers often struggle with ensuring reliable mating, durable backnut mounting, and effective corrosion protection in harsh environments. This design meets MIL-DTL-26482 SI qualification and REACH-compliant materials to help you stay compliant while reducing maintenance cycles. The combination of a straight backshell, cadmium plating, and a 27-contact layout delivers dependable performance in demanding applications, enabling faster installation and proven compatibility with the Souriau 851 family. For system integrators, it translates to lower risk and smoother procurement through a single, robust connector solution.
Product Information
Extended Description
85100E2027SZ50 Eaton: Square flange receptacle, with backnut, cadmium plating, female solder contacts, pos Z; 85100E2027SZ50
Product Name
Eaton Souriau 851 series MIL-DTL-26482 SI qualified
Catalog Number
85100E2027SZ50
Product Length/Depth
34.5 mm
Product Height
36.9 mm
Product Width
36.9 mm
Product Weight
45.4 g
Environmental conditions
REACH
Backshell angle
Straight
Backshell type
Backnut
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
27
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
27
Number of cavity #20
27
Feature 27 solder cup contacts wired as a 27-position socket (“27” cavities) enables high-density signal management with reliable electrical performance; Business Impact simplifies multi-channel wiring and reduces harness complexity, cutting assembly time in automation panels. Application Used in aerospace, defense, and industrial control cabinets where space is at a premium and signal integrity must be preserved. Feature 1/3 Bayonet coupling provides quick, secure mating while maintaining robust vibration resistance; Business Impact speeds field assembly and minimizes loose connections that trigger downtime. Application Ideal for on-site panel installations and equipment that experiences frequent assembly/disassembly cycles. Feature Cadmium plating offers corrosion protection in challenging environments; Business Impact extends service life and lowers maintenance costs. Application Suitable for environments with exposure to moisture, salts, or aggressive atmospheres in both aerospace and heavy industry. Feature Aluminium shell and shell size 20 deliver a lightweight yet strong enclosure; Business Impact reduces weight in compact assemblies and supports better thermal management. Application Beneficial in space-constrained control boxes and mobile equipment. Feature Backnut backshell and straight orientation support secure mounting and straightforward installation; Business Impact improves sealing performance and reduces installation time. Application Panel-mounted systems and fixed enclosures benefit from faster, reliable connections. Feature Operating temperature range -40 °C to 125 °C ensures consistent performance under wide environmental conditions; Business Impact minimizes risk of intermittent failures due to temperature swings. Application Harsh manufacturing floors, outdoor equipment, and aerospace compartments demanding thermal resilience. Feature Delivered with connector option simplifies integration; Business Impact accelerates deployment and ensures compatibility within the Souriau 851 ecosystem. Application System upgrades or new builds can optimize procurement and reduce integration risk.
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FAQs
The 85100E2027SZ50 is designed as a square flange receptacle within the Souriau 851 family and features a backnut backshell, Z orientation, and 27 contact positions. It mates with corresponding 851-series plugs designed for MIL-DTL-26482 SI, ensuring straightforward field assembly and predictable interconnect performance.
The 27 solder cup contacts provide high-density signaling for multi-channel applications while maintaining reliable electrical connections under vibration. They support solid solder joints, which improves current carrying capability and reduces the risk of intermittent contacts in demanding environments.
Yes. With an operating range of -40 °C to 125 °C, aluminium shell construction, and cadmium plating, the 85100E2027SZ50 is engineered for wide environmental exposure while maintaining electrical integrity and corrosion resistance.
This receptacle is MIL-DTL-26482 SI qualified and uses REACH-compliant materials, addressing both defense/aerospace interoperability requirements and European regulatory safety standards for materials used in electrical assemblies.
The MIL-DTL-26482 SI qualified design, combined with robust corrosion protection and a reliable mating interface, reduces maintenance cycles and replacement costs. Its compatibility with the Souriau 851 ecosystem simplifies procurement, minimizes spare parts diversity, and lowers total cost of ownership in long-life systems.