The **47LM-101G-R/Q** is a specific electronic component typically categorized under **Network Interface Modules** or **RJ45 Connector Modules with Integrated Magnetics** (often called "MagJacks"). These are commonly used in Ethernet networking hardware to provide both physical connectivity and signal conditioning. --- ### 1. Component Overview This part is a high-performance connector designed for Local Area Network (LAN) applications. It integrates traditional RJ45 mechanical housing with internal transformer components (magnetics). | Feature | Specification Details | | :--- | :--- | | **Component Type** | RJ45 Integrated Magnetics Connector (MagJack) | | **Port Configuration** | Single Port (1x1) | | **Ethernet Speed** | 10/100/1000 Base-T (Gigabit Ethernet) | | **Orientation** | Right Angle / Tab-Up or Tab-Down (varies by suffix) | | **LEDs** | Often includes integrated Green/Yellow status LEDs | | **Shielding** | Metal EMI Shield with Spring Tabs | --- ### 2. Internal Electronic Parts The "101G" designation typically refers to the internal circuit configuration. These components are not just plastic plugs; they contain several surface-mount elements inside the shell: 1. **Isolation Transformers:** Provides 1500Vrms isolation between the cable and the PHY (Physical Layer) chip to protect the device from surges. 2. **Common Mode Chokes:** Used to suppress Electromagnetic Interference (EMI) and ensure signal integrity over long cable runs. 3. **Bob Smith Termination:** A resistor/capacitor network (usually 75Ω resistors and high-voltage capacitors) used to reduce noise on unused wire pairs. 4. **LEDs:** Integrated Light Emitting Diodes for "Link" and "Activity" status. --- ### 3. Pinout and Mechanical Properties The part connects to a Printed Circuit Board (PCB) via Through-Hole pins. * **Signal Pins:** Usually 8 to 12 pins depending on the specific PoE (Power over Ethernet) support or grounding requirements. * **Shield Tabs:** Provide a path for static discharge and EMI shielding to the chassis ground. * **Gold Plating:** The contact pins inside the RJ45 socket are typically plated with 30μ" to 50μ" of gold to prevent corrosion and ensure a low-resistance connection. --- ### 4. Common Applications * **Networking Gear:** Switches, Routers, and Hubs. * **Industrial PC:** Embedded motherboards and Automation controllers. * **Consumer Electronics:** Set-top boxes, Game consoles, and Smart TVs. --- ### 5. Technical Identification (Suffix Decoding) * **47LM:** Series identifier (usually indicates the height and profile of the housing). * **101G:** Indicates the internal wiring diagram (Gigabit Ethernet 1:1 Turns Ratio). * **R/Q:** Generally refers to compliance standards (RoHS Reach) or specific packaging types (Tape & Reel vs. Tray).