The part number **31-217-RFX** refers to a high-quality **BNC Straight Plug (Male)** connector manufactured by **Amphenol RF**. This specific part is widely used in radio frequency (RF) applications. --- ### 1. Technical Specifications The following table summarizes the key electrical and physical characteristics of the 31-217-RFX: | Property | Specification | | :--- | :--- | | **Connector Type** | BNC Plug (Male) | | **Impedance** | 50 Ohm | | **Frequency Range** | 0 - 4 GHz | | **Body Material** | Brass | | **Body Finish** | Nickel | | **Contact Plating** | Gold | | **Termination Style** | Crimp | | **Cable Group** | RG-58, RG-141, RG-142, LMR-195 | | **Insulator Material** | Delrin / PTFE | --- ### 2. Key Components and Design The connector consists of three main sub-components designed for secure signal transmission: * **The Main Body:** Features a bayonet-style coupling mechanism (twist-and-lock) which allows for quick connection and disconnection without tools. * **The Center Pin:** A gold-plated male contact that is typically crimped or soldered onto the center conductor of the coaxial cable to ensure low signal loss. * **The Crimp Ferrule:** A metal sleeve used to secure the outer shield (braid) of the coaxial cable to the connector body, providing mechanical strength and EMI shielding. --- ### 3. Common Applications Due to its 50-ohm impedance and reliability, this part is found in: 1. **Test & Measurement:** Oscilloscopes, signal generators, and spectrum analyzers. 2. **Telecommunications:** Base stations and antennas. 3. **Broadcast:** Video and audio signal routing. 4. **Medical Equipment:** High-frequency monitoring devices. --- ### 4. Assembly Note To install the 31-217-RFX, a specific **crimp tool** is required. The dimensions for stripping the cable must be precise to ensure the center pin sits at the correct depth within the BNC housing to prevent signal reflection or "ghosting."