The part number **031-5137-RFX** refers to a high-quality **BNC Straight Crimp Plug** manufactured by **Amphenol RF**. It is a common connector used in telecommunications, broadcast, and testing equipment. --- ### 1. Technical Specifications This connector is designed for high-frequency performance and durability. Below are the primary specifications: | Feature | Specification | | :--- | :--- | | **Connector Style** | BNC Plug (Male) | | **Impedance** | 50 Ohms | | **Frequency Range** | 0 - 4 GHz | | **Termination Type** | Crimp | | **Body Material** | Brass | | **Body Finish** | Nickel | | **Contact Material** | Brass / Phosphor Bronze | | **Contact Plating** | Gold | | **Insulator Material** | Delrin | --- ### 2. Physical Design and Assembly The "RFX" designation usually indicates a commercial-grade product line that offers a balance between high performance and cost-effectiveness. * **Body Orientation:** Straight. * **Mounting Type:** Cable Mount (requires crimping tools). * **Coupling Mechanism:** Bayonet locking (twist-and-lock), which allows for quick connection and disconnection without the risk of accidental loosening. --- ### 3. Compatible Cable Types The 031-5137-RFX is specifically designed to fit specific coaxial cable groups. It is most commonly used with: * **RG-58** * **RG-141** * **RG-303** * **LMR-195** --- ### 4. Applications Because of its 50-ohm impedance and 4 GHz frequency rating, it is widely used in: 1. **Test and Measurement:** Connecting oscilloscopes and function generators. 2. **Antennas:** Low-power WiFi or radio frequency transmission. 3. **Medical Equipment:** Signal monitoring devices. 4. **Networking:** Older Ethernet topologies or specialized RF data links. --- ### 5. Installation Note To install this part, you typically need: 1. A **coax cable stripper** to prep the RG-58 wire. 2. A **crimp tool** with the correct hex die size (usually .213" for the ferrule). 3. Soldering is generally not required as the center pin is also designed to be crimped.