The **CSI-RGFB-100-UFFR** is a specific electronic component belonging to the category of **High-Frequency Coaxial Cable Assemblies**. It is primarily used for internal antenna connections or board-to-board RF signal transmission in compact electronic devices. --- ### 1. Component Breakdown The part number typically decodes into specific physical and electrical attributes: | Segment | Meaning | Description | | :--- | :--- | :--- | | **CSI** | Manufacturer Prefix | Often associated with **Connect-Source** or similar RF assembly specialists. | | **RGFB** | Cable Type | Refers to a thin, flexible micro-coaxial cable (often 1.13mm or 1.32mm OD). | | **100** | Length | Indicates the cable assembly length (usually **100mm**). | | **UFFR** | Connector Type | Represents **U.FL** (or IPEX MHF) Right-Angle Female connectors on both ends. | --- ### 2. Technical Specifications The performance of this assembly is defined by its RF (Radio Frequency) characteristics: * **Frequency Range:** Typically DC to 6 GHz (suitable for Wi-Fi 6, Bluetooth, and 4G/5G). * **Impedance:** 50 Ohms (Standard for RF communications). * **Connector Type:** U.FL (MHF1) - A miniature surface-mount connector with a mating height of ~2.5mm. * **Cable Jacket:** Often FEP (Fluorinated Ethylene Propylene) for heat resistance and durability. --- ### 3. Key Electronic Features #### A. Signal Integrity The use of a shielded coaxial structure minimizes **EMI (Electromagnetic Interference)**. The braided outer conductor ensures that the high-frequency signals traveling through the center core do not leak out or get distorted by outside noise. #### B. Mechanical Constraints * **Snap-on Mating:** The UFFR (U.FL) connectors use a friction-lock snap-on mechanism. They are designed for a limited number of "mate/un-mate" cycles (typically 30 cycles). * **Bend Radius:** Due to the thinness of the cable, it allows for tight routing inside small enclosures like laptops or IoT sensors. --- ### 4. Typical Applications This specific part is common in the following hardware: 1. **Wi-Fi/Bluetooth Modules:** Connecting an M.2 card to an external chassis antenna. 2. **GPS Receivers:** Routing signals from a patch antenna to the PCB. 3. **IoT Gateways:** Internal routing where space is at a premium. ---