749013011 10/100BASE-TX Power Over Ethernet Transformer SMT Module
Introduction:
The WE-LAN 749013011 is a compact surface-mount (SMT) LAN transformer specifically designed for 10/100BASE-T Ethernet applications. Supporting Power over Ethernet (PoE), it ensures both data transmission and power delivery through a single Ethernet cable. This component provides excellent signal integrity, electrical isolation, and complies with IEEE 802.3 and IEEE 802.3af standards, making it ideal for industrial, commercial, and network communication devices.
The 749013011 PoE transformer plays a critical role in Ethernet interfaces. It provides:
- Electrical isolation between PHY and network lines.
- Low insertion loss and high common-mode rejection, ensuring stable data transmission.
- PoE compatibility, supporting current up to 350 mA per center tap.
- RoHS and REACH compliance, ensuring environmentally safe design.
This LAN transformer meets the reliability and performance demands of modern Ethernet systems, including those operating in harsh industrial environments.
Key Features & Electrical Specifications of 749013011:
| Parameter | Test Conditions | Value |
|---|---|---|
| Inductance (L) | 100 kHz / 100 mV @ 8 mA | 350µH min. |
| Insulation Test Voltage (VT) | 1 min | 1500V (RMS) min. |
| Insertion Loss (IL) | 1–100 MHz | -1.1dB max. |
| Return Loss (RL) | 1–30 MHz @ 100 Ω | -18dB min. |
| 30–60 MHz @ 100 Ω | -14dB min. | |
| 60–80 MHz @ 100 Ω | -12dB min. | |
| 80–100 MHz @ 100 Ω | -10dB min. | |
| Differential to Common Mode Rejection Ratio (DCMR) | 1–30 MHz | -38dB min. |
| 30–60 MHz | -38dB min. | |
| 60–100 MHz | -30dB min. | |
| Crosstalk (CT) | 1–60 MHz | -40dB min. |
| 60–100 MHz | -35dB min. | |
| Turns Ratio (n) | — | 1:1±3% |
| Data Rate | — | 10/100BASE-TX |
749013011 Ethernet Transformer General Information:
| Parameter | Specification |
|---|---|
| Operating Temperature | -40°C to +85°C |
| Storage Conditions | < 40°C, < 75% RH |
| Insulation Voltage | 1500 VAC, 1 min |
| Moisture Sensitivity Level (MSL) | 1 |
| PoE Current Capacity | Up to 350 mA per center tap |
| Compliance | IEEE 802.3af, RoHS, REACH, UL 62368-1 (E472316) |
749013011 Ethernet Transformer Mechanical Dimensions:
|
Dimension |
Value (max.) |
|---|---|
|
Length |
12.95 mm |
|
Width |
6.85 mm |
|
Height |
5.33 mm |
|
Mounting Type |
Surface Mount (SMT) |
|
Package |
16-pin configuration |
749013011 Datasheet:
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