85106AC145S50 - Souriau 851 5C 5#16 5 Socket Plug With Bayonet Coupling

85106AC145S50 – Souriau 851 Series Circular Female Connector

Available now for order through the Industrial and Aerospace Interconnect Marketplace.

Overview Section

The Souriau 85106AC145S50 is a high-reliability, straight plug circular connector from the 851 Series. This series is based on the MIL-DTL-26482 standard, featuring a lightweight, compact design with a secure bayonet coupling mechanism. This specific connector is a "plug" housing designed to mate with 851 series receptacles for power or signal transmission in demanding environments.

The part number identifies a Size 14 shell with a 5-contact arrangement. The 5S designation indicates it is equipped with female Socket (SKT) contacts. The AC suffix refers to the backshell type, which provides a cable clamp for strain relief. Finished in a durable non-conductive black anodized or olive drab (depending on specific mod codes), this connector is ideal for aerospace, military, and industrial automation where a quick-connect, vibration-proof interface is required.

Key Features Section

• Bayonet Coupling Mechanism: Provides a rapid and secure 1/3-turn locking system with an audible and tactile "click," ensuring a vibration-proof connection.

• 5-Contact Heavy-Duty Layout: Features five size #16 contacts, offering a robust balance between current-carrying capacity and high signal integrity.

• Lightweight Aluminum Shell: High-strength aluminum alloy construction provides durability without adding significant weight to cable harnesses.

• AC Backshell for Strain Relief: Includes a straight backshell with an integrated cable clamp to protect the wire terminations from mechanical stress and pulling.

• Gold-Plated Sockets: Ensures low contact resistance and prevents oxidation, maintaining reliable electrical performance over the life of the connector.

• Intermateability: Fully compatible with all 851, MIL-DTL-26482 Series I, and PT/KPT style connectors of the same shell size and arrangement.

Technical Specifications Section

• Part Number: 85106AC145S50

• Manufacturer: Souriau (Eaton)

• Series: 851 Series (MIL-DTL-26482 Series I Style)

• Shell Size: 14

• Number of Contacts: 5

• Contact Size: #16

• Contact Gender: Socket (Female)

• Coupling Type: Bayonet

• Termination Style: Solder (Standard for the 851 Series)

• Shell Material: Aluminum Alloy

• Operating Temperature: -55°C to +125°C

• Current Rating: Up to 13 Amps per contact (Size #16)

Applications Section

• Industrial Automation: Control links for motors, sensors, and actuators in factory environments.

• Aerospace Systems: Reliable interconnects for cabin electronics, lighting, and non-critical flight systems.

• Medical Equipment: Secure power and signal connections for diagnostic and imaging devices.

• Geophysical and Oil/Gas: Ruggedized field equipment requiring quick-disconnect capabilities in harsh conditions.

Why Choose the 85106AC145S50?

The 85106AC145S50 is the preferred choice when reliability and speed of mating are paramount. Unlike threaded connectors that can loosen over time under vibration, the 851 series bayonet system remains locked until manually disengaged. The use of #16 contacts provides a higher current threshold than smaller #20 or #22 contacts, making this specific 5-contact arrangement versatile for both power delivery and ruggedized signal paths. Choosing this Souriau connector ensures your system benefits from a globally recognized standard used by Tier 1 aerospace and industrial manufacturers.

Proper assembly of the 85106AC145S50 requires careful solder termination. Each of the five size #16 socket contacts features a solder cup; it is recommended to use heat-shrink tubing over each individual wire to prevent short-circuiting between contacts. The AC backshell must be tightened sufficiently to engage the cable clamp, ensuring that the weight of the cable is supported by the clamp and not the solder joints. For environmental applications, applying a silicone-based dielectric grease to the interface seal before mating can further enhance moisture resistance.

Product Information