Based on the part number provided, this component is a high-quality **M12 Connector Assembly** typically used in industrial automation and sensor applications. Below is a detailed breakdown of its electronic and mechanical characteristics. --- ### 1. General Specifications The **M2REB-S31-R/UL** is a circular connector designed for robust connectivity in harsh environments. | Feature | Specification | | :--- | :--- | | **Connector Type** | M12 Circular Connector | | **Gender** | Female (Receptacle) | | **Coding** | A-Coded (Standard for Sensors/DC Power) | | **Mounting Type** | Rear Panel Mount / PCB Mount | | **Safety Compliance** | UL Recognized (Underwriters Laboratories) | | **RoHS Status** | Compliant | --- ### 2. Electronic Characteristics This part is engineered to handle specific voltage and current loads while maintaining signal integrity. * **Contact Configuration:** Usually 3 to 4 pins (Standard for the S31 series). * **Rated Current:** Typically **4A** per contact. * **Rated Voltage:** **250V AC/DC** (for A-coded versions). * **Insulation Resistance:** $\geq 100 \, \text{M}\Omega$. * **Contact Resistance:** $\leq 10 \, \text{m}\Omega$ (ensuring minimal power loss). --- ### 3. Physical & Material Composition The "R" and "UL" designations in the suffix often refer to specific material grades and environmental protections. * **Housing Material:** Nickel-plated brass or high-grade plastic (PBT). * **Contact Material:** Copper Alloy with **Gold Plating** to prevent oxidation and ensure reliable conductivity over thousands of mating cycles. * **IP Rating:** Typically **IP67 or IP68** when mated, meaning it is dust-tight and protected against water immersion. * **Shielding:** Shielded (Metal shell) to prevent Electromagnetic Interference (EMI). --- ### 4. Typical Applications This specific part is widely used in the following sectors: 1. **Industrial Automation:** Connecting PLCs to proximity sensors and actuators. 2. **Robotics:** Providing power and signal paths in articulated arms. 3. **Transportation:** Used in ruggedized monitoring systems for rail or heavy machinery. 4. **IoT Gateways:** External antenna or sensor interfaces for rugged outdoor enclosures. --- ### 5. Identification Key | Part Segment | Meaning | | :--- | :--- | | **M** | Metric Thread (M12) | | **2REB** | Receptacle, Rear Mount Series | | **S31** | Internal Configuration Code (Specific to pin count/layout) | | **R** | Right Angle or Ruggedized variant (Manufacturer specific) | | **UL** | UL Safety Certified for North American markets |