The **M2AS1-6242-R** is a specific electronic component, typically categorized as a **Surface Mount (SMT) Common Mode Choke** or a **LAN Transformer** module, often used in networking and telecommunications equipment. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Specifications The part is designed for high-frequency signal integrity, primarily used to suppress electromagnetic interference (EMI) in Ethernet or data transmission lines. | Feature | Description | | :--- | :--- | | **Component Type** | LAN Magnetics / Common Mode Choke | | **Configuration** | Single Port / Discrete Component | | **Mounting Type** | Surface Mount (SMD/SMT) | | **RoHS Status** | Compliant (indicated by the "-R" suffix) | | **Application** | 10/100/1000 Base-T Ethernet | --- ### 2. Key Electronic Characteristics These components are engineered to provide isolation and noise filtering while maintaining signal quality. * **Isolation Voltage:** Usually rated for **1500Vrms** to protect sensitive ICs from high-voltage spikes on the network line. * **Insertion Loss:** Designed for minimal loss (typically < -1.1 dB) across the operating frequency range (1MHz - 100MHz). * **Return Loss:** Optimized to prevent signal reflection, ensuring stable data transmission. * **Common Mode Rejection (CMR):** High attenuation of common-mode noise to prevent EMI from affecting other electronics. --- ### 3. Physical & Material Properties The "R" at the end of the part number typically signifies **RoHS Compliance**, meaning the part is lead-free. | Property | Value/Material | | :--- | :--- | | **Package Style** | Low-profile SMT | | **Core Material** | Ferrite | | **Termination Finish** | Tin (Sn) or Gold Flash over Nickel | | **Operating Temp** | Typically -40°C to +85°C (Industrial Grade) | --- ### 4. Typical Circuit Application In a standard circuit, the M2AS1-6242-R is placed between the **PHY (Physical Layer) Chip** and the **RJ45 Connector**. ```mermaid graph LR A[Ethernet PHY Chip] --> B[M2AS1-6242-R Transformer] B --> C[RJ45 Connector] C --> D[Network Cable] ``` ### 5. Potential Equivalents If sourcing this specific part is difficult, common manufacturers of equivalent magnetics include: * **Pulse Electronics** * **Wurth Elektronik** * **Bourns** * **TDK** ---