7490200136

Pulse Transformers Overview

The Würth Elektronik 7490200136 is a surface mount LAN pulse transformer designed for 10/100/1000 Base-T applications. It features a single output configuration with a 1:1 turns ratio and 350µH inductance. The component supports IEEE 802.3at standards and provides 1500Vrms isolation voltage. Operating frequencies range from 1MHz to 100MHz, with an insertion loss of -1.0dB. It operates within a temperature range of -40°C to 85°C and complies with UL94-V0 flammability ratings.

Pulse Transformers Feature Summary

• Supports 10/100/1000 Base-T Ethernet standards
• Provides high voltage isolation for circuit protection
• Surface mount design for automated assembly

Pulse Transformers Applications

• Ethernet network interface circuits
• PoE enabled devices
• LAN connectivity modules

Pulse Transformers Procurement Notes

Verify component availability as this part may be obsolete or discontinued. Confirm current manufacturing status through official Wurth channels before finalizing procurement plans. Check for valid replacement part numbers if the original component is no longer produced. Ensure compliance with RoHS regulations for intended applications.

Pulse Transformers Selection Notes

Select this component for designs requiring integrated LAN isolation and signal conditioning. Verify that the 1500Vrms isolation rating meets safety requirements. Ensure the surface mount package dimensions fit the PCB layout constraints. Confirm compatibility with 10/100/1000 Base-T signaling speeds.

Pulse Transformers Part Context

This component belongs to the Würth Elektronik LAN transformer family. It serves as a critical interface element between Ethernet PHY chips and modular jacks. The device integrates common mode chokes and center taps for noise suppression. It simplifies board design by combining multiple passive components into a single package.

Pulse Transformers Replacement Considerations

Public sources indicate this product is no longer manufactured. Review available substitute part numbers provided by the manufacturer for direct replacements. Ensure substitutes maintain identical pinout configurations and electrical specifications.