The **31-216-RFX** is a high-performance RF (Radio Frequency) connector manufactured by **Amphenol RF**. It is a standard BNC (Bayonet Neill–Concelman) straight plug designed for coaxial cable termination. --- ### Technical Specifications | Feature | Specification | | :--- | :--- | | **Connector Type** | BNC Plug (Male) | | **Impedance** | 50 Ohm | | **Frequency Range** | DC to 4 GHz (Optimized for performance) | | **Termination Style** | Crimp | | **Body Material** | Brass | | **Body Plating** | Nickel | | **Contact Material** | Brass / Phosphor Bronze | | **Contact Plating** | Gold | | **Dielectric Material** | Delrin (Acetal Copolymer) | | **Cable Type Compatibility** | RG-58, RG-141, RG-142, RG-400 | --- ### Key Components and Construction The 31-216-RFX consists of several critical electronic and mechanical parts that ensure signal integrity: 1. **Male Center Pin:** Usually gold-plated to ensure low contact resistance and prevent oxidation over long-term use. 2. **Bayonet Coupling Mechanism:** The "twist-and-lock" outer shell allows for quick connect/disconnect while maintaining a secure mechanical vibration-resistant bond. 3. **Dielectric Insulator:** Typically made of Delrin, this separates the center conductor from the outer shield, maintaining the constant 50-ohm impedance required for RF signals. 4. **Crimp Ferrule:** A metal sleeve that is compressed over the cable braid to provide a secure electrical ground and mechanical strain relief. ### Common Applications * **Test and Measurement:** Used extensively in oscilloscopes and signal generators. * **Telecommunications:** Base station equipment and antennas. * **Broadcast:** Video signal transmission (though 75-ohm BNCs are also common in video, 50-ohm is standard for data/RF). * **Medical Equipment:** High-frequency monitoring devices. --- ### Installation Requirements To properly install the 31-216-RFX, you typically require: * **Coaxial Stripper:** To remove the jacket, braid, and dielectric to specific dimensions. * **Crimp Tool:** A hex-crimp tool specifically sized for RG-58/u dimensions (usually .213" or similar). * **Soldering Iron (Optional):** While many are full-crimp, some variants allow for soldering the center pin for increased reliability.