M2AS1-5113-R2/Q
AI

The **M2AS1-5113-R2/Q** is a specialized electronic component, typically categorized as a **Surface Mount (SMT) Magnetic Network** or **LAN Transformer**. These parts are essential in networking hardware for signal conditioning and isolation.
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### 1. Component Overview
This specific part is often found in networking equipment like routers, switches, and Network Interface Cards (NICs). Its primary role is to interface between the Physical Layer (PHY) chip and the RJ45 connector.
| Feature | Description |
| :--- | :--- |
| **Component Type** | LAN Transformer / Magnetic Module |
| **Port Configuration** | Single Port (typically) |
| **Speed Support** | 10/100/1000 Base-T (Gigabit Ethernet) |
| **Package Type** | Surface Mount Device (SMD/SMT) |
| **Standard Compliance** | IEEE 802.3 compatible |
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### 2. Key Electronic Functions
The internal circuitry of the M2AS1-5113-R2/Q consists of several miniature transformers and common-mode chokes designed for:
* **Galvanic Isolation:** It provides electrical isolation (usually up to 1500Vrms) between the internal circuitry and the external network cable to protect sensitive components from voltage surges or static.
* **Impedance Matching:** Ensures the signal maintains integrity by matching the impedance of the PHY chip to the twisted-pair cable (usually 100 ohms).
* **Noise Suppression:** Integrated **Common Mode Chokes** filter out Electromagnetic Interference (EMI) to ensure the device meets EMC regulatory standards.
* **Signal Transformation:** It converts the differential signals from the Ethernet controller into the format required for transmission over copper wiring.
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### 3. Internal Schematic Representation
While specific pinouts vary by manufacturer, the internal logic generally follows this structure:
```mermaid
graph LR
A[PHY Side] --- B[Isolation Transformer]
B --- C[Common Mode Choke]
C --- D[Cable/RJ45 Side]
```
### 4. Technical Specifications (Typical)
| Parameter | Value (Standard) |
| :--- | :--- |
| **Insertion Loss** | -1.1 dB Max (1-100MHz) |
| **Return Loss** | -18 dB Min (1-30MHz) |
| **Crosstalk** | -35 dB Min (1-100MHz) |
| **Operating Temp** | 0°C to +70°C (Commercial) |
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### 5. Application Areas
* **Computing:** Motherboards and Server NICs.
* **Industrial:** PLC controllers and IoT Gateways.
* **Consumer:** Smart TVs, Set-top boxes, and Game consoles.
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- ⤷What is the difference between this part and a PoE (Power over Ethernet) transformer?
- ⤷ How do I test the signal integrity of a LAN transformer on a PCB?
- ⤷ What are the common failure modes for magnetic network modules?