749020112B

Pulse Transformers Overview

The Würth Elektronik 749020112B is a Surface Mount Device (SMD) LAN transformer belonging to the WE-LAN series. It is designed for 10/100/1000Base-T Ethernet applications. The component features a 1:1 turns ratio with separate transmitter and receiver sections, each having one center tap (1CT:1CT). It includes integrated common mode chokes with an inductance of 350µH. The unit supports high-speed data transmission standards for general electronic equipment.

Pulse Transformers Feature Summary

• Supports 10/100/1000Base-T Ethernet communication standards
• Integrates common mode chokes within the transformer assembly
• Designed for surface mount technology (SMT) PCB integration

Pulse Transformers Applications

• Ethernet network interface circuits
• General electronic equipment requiring LAN connectivity
• High-speed data transmission modules

Pulse Transformers Procurement Notes

Verify the specific datasheet version and mechanical dimensions prior to implementation. Confirm that the application environment meets the operational requirements for general electronic equipment as defined by the manufacturer. Ensure compatibility with standard SMT reflow processes during assembly planning.

Pulse Transformers Selection Notes

Select this component for designs requiring integrated LAN isolation and filtering in a compact SMD footprint. The 1:1 configuration suits direct coupling scenarios. Verify pinout alignment and thermal characteristics against the target PCB layout constraints before finalizing the bill of materials.

Pulse Transformers Part Context

This part belongs to the WE-LAN series from Würth Elektronik, which provides various LAN transformers for different Ethernet speeds and form factors. The 749020112B specifically addresses Gigabit Ethernet needs with integrated magnetic components, simplifying the design compared to discrete solutions.

Pulse Transformers Replacement Considerations

Consult official Wurth Elektronik documentation for verified substitute part numbers or cross-reference options. Do not assume functional equivalence with other LAN transformers without validating electrical parameters and pin configurations.