749052012

Pulse Transformers Overview

The Würth Elektronik 749052012 is a LAN pulse transformer from the WE-LAN series, designed for Single Pair Ethernet (SPE) and SPE with Power over Data Lines (SPE+PoDL). It features a 1:1 turns ratio and 120µH inductance. The component supports 10/100 Base-T standards with a maximum operating frequency of 100MHz. It offers 1500Vrms isolation voltage and -1.0dB insertion loss. Dimensions are 12.7mm length by 9.27mm width, with a surface mount package.

Pulse Transformers Feature Summary

• Supports Single Pair Ethernet (SPE) and SPE with Power over Data Lines (SPE+PoDL)
• Provides 1500Vrms isolation voltage for signal integrity
• Surface mount design optimized for compact layouts

Pulse Transformers Applications

• Single Pair Ethernet network interfaces
• SPE with Power over Data Lines systems
• 10/100 Base-T compliant devices

Pulse Transformers Procurement Notes

Verify the specific datasheet version to confirm compliance with IEEE 802.3at standards and UL94-V0 flammability ratings. Ensure the selected variant matches the required 120µH inductance and 1:1 turns ratio for the target application. Cross-reference official manufacturer documentation to validate operational temperature ranges and physical dimensions before integration.

Pulse Transformers Selection Notes

Select this component for applications requiring Single Pair Ethernet connectivity or Power over Data Lines solutions. The 120µH inductance and 1:1 ratio suit standard 10/100 Base-T implementations. Consider the 1500Vrms isolation capability for robust signal separation. Verify that the surface mount footprint aligns with the PCB layout constraints.

Pulse Transformers Part Context

This part belongs to the WE-LAN series of LAN transformers and modular jack connectors manufactured by Würth Elektronik. The series provides various Ethernet solutions tailored for different networking standards. The 749052012 specifically addresses modern Single Pair Ethernet requirements within this product family.

Pulse Transformers Replacement Considerations

Public confirmed substitutes include part numbers 749050017 and 749050018, which are parameter-equivalent alternatives available from Würth Elektronik.