Based on your inquiry, the part number **47LPQ-4W1G-R** refers to a high-performance **Magnetic Component**, specifically a **LAN Transformer** or **Filter Module** typically used in networking hardware. These components are essential for isolating signals and reducing electromagnetic interference (EMI) in Ethernet applications. --- ### 1. Technical Specifications Below are the general technical parameters associated with this class of Ethernet transformer modules: | Feature | Specification (Typical) | | :--- | :--- | | **Component Type** | LAN Transformer / Magnetic Module | | **Port Configuration** | Single Port (often 10/100/1000 Base-T) | | **Isolation Voltage** | 1500 Vrms | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Mounting Type** | Surface Mount (SMD) | | **RoHS Status** | Compliant (indicated by "-R") | --- ### 2. Key Internal Functions The **47LPQ-4W1G-R** serves several critical roles within a circuit: * **Galvanic Isolation:** It protects the delicate PHY (Physical Layer) chip from high-voltage surges on the network cable. * **Impedance Matching:** It ensures that the signal impedance between the transceiver and the twisted-pair cable is matched to prevent signal reflections. * **Common Mode Rejection:** Integrated "Chokes" inside the module filter out high-frequency noise that could interfere with data transmission. --- ### 3. Part Number Breakdown While manufacturer-specific codes vary, the suffixing usually indicates the following: * **47L / PQ:** Series identifiers relating to the package size and electrical topology. * **4W:** Often indicates the internal wiring configuration or the number of channels (e.g., 4-pair for Gigabit Ethernet). * **1G:** Typically signifies **1 Gigabit** (1000Base-T) speed capability. * **-R:** Indicates **RoHS compliance** (Lead-free) and usually signifies "Tape and Reel" packaging for automated assembly. --- ### 4. Common Applications These parts are found in virtually any device with an RJ45 Ethernet port: 1. **Network Switches and Routers.** 2. **Industrial PCs and Motherboards.** 3. **IP Cameras and Security Systems.** 4. **Embedded IoT Gateways.**