749020010A

Pulse Transformers Overview

The Würth Elektronik 749020010A is a WE-LAN series LAN pulse transformer designed for surface mount applications. It supports 10/100/1000 Base-T Ethernet standards and complies with IEEE 802.3, 802.3af, and 802.3at specifications. The component features a single port configuration with a 1:1 turns ratio and an inductance of 350µH. It operates within a temperature range of -40°C to +85°C and is available in reel, cut tape, and Digi-Reel packaging formats.

Pulse Transformers Feature Summary

• Compliant with IEEE 802.3, 802.3af, and 802.3at standards
• Supports 10/100/1000 Base-T data transmission rates
• Single-port surface mount design for compact integration

Pulse Transformers Applications

• Ethernet network interface circuits
• PoE (Power over Ethernet) powered devices
• Industrial communication modules

Pulse Transformers Procurement Notes

Verify the specific ordering suffix to ensure correct packaging type, such as Reel, Cut Tape, or Digi-Reel, as these affect handling but not electrical function. Confirm RoHS compliance status and moisture sensitivity level requirements against project specifications before finalizing procurement orders.

Pulse Transformers Selection Notes

Select this component for designs requiring integrated LAN isolation and signal coupling in a single SMD package. Ensure the PCB footprint matches the specified dimensions of 17.50mm x 14.20mm x 6.00mm. Consider the operating temperature range of -40°C to +85°C when evaluating environmental constraints for the target application.

Pulse Transformers Part Context

This part belongs to the WE-LAN family from Würth Elektronik, which specializes in LAN transformers and modular jack connectors. The series provides integrated solutions for Ethernet connectivity, combining magnetics and often PoE capabilities into compact surface-mount packages suitable for modern electronic designs.

Pulse Transformers Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source documentation. Verify pinout compatibility and electrical parameters if considering alternative manufacturers' components for this specific application.