The part number **031-4803-RFX** refers to a high-quality **BNC Straight Jack (Female)** connector manufactured by **Amphenol RF**. It is specifically designed for use with flexible coaxial cables, most notably **RG-174, RG-188, and RG-316**. Below is a detailed breakdown of its specifications and electronic characteristics. --- ### 1. General Specifications | Feature | Details | | :--- | :--- | | **Manufacturer** | Amphenol RF | | **Connector Type** | BNC (Bayonet Neill–Concelman) | | **Gender** | Jack (Female) | | **Body Style** | Straight | | **Termination Method** | Crimp / Solder | | **Impedance** | 50 Ohms | ### 2. Electrical Characteristics These parts are engineered for high-frequency performance in telecommunications and test equipment. * **Frequency Range:** DC to 4 GHz (standard for BNC). * **Voltage Rating:** Approximately 500 Volts RMS at sea level. * **Insulation Resistance:** 5,000 Megohms minimum. * **Dielectric Withstanding Voltage:** 1,500 Volts RMS. ### 3. Material and Construction The "RFX" suffix in Amphenol parts often denotes a commercial-grade product that maintains high performance while optimizing materials for cost-effectiveness. | Component | Material | Plating | | :--- | :--- | :--- | | **Body** | Brass | Nickel | | **Contact (Center)** | Phosphor Bronze | Gold | | **Insulator** | PTFE (Teflon) | N/A | | **Gasket** | Silicone Rubber | N/A | ### 4. Application and Use Cases The **031-4803-RFX** is used primarily where quick connect/disconnect capabilities are needed in a 50-ohm system. * **Cable Compatibility:** Designed specifically for small-diameter cables like **RG-316** and **RG-174**. * **RF Equipment:** Used in oscilloscopes, signal generators, and spectrum analyzers. * **Wireless Infrastructure:** Often found in Wi-Fi antennas and GPS modules where low-loss miniature cabling is required. --- ### Assembly Note To install this part, you typically require a specialized **hex crimp tool** for the outer ferrule and a **soldering iron** for the center contact (though some variants allow for crimping the center pin as well).