749020015

Pulse Transformers Overview

The Würth Elektronik 749020015 is a WE-LAN series surface-mount LAN pulse transformer designed for single-port applications. It supports 10/100/1000 Base-T Ethernet standards with a 1:1 turns ratio and operates within a frequency range of 1 MHz to 100 MHz. The component features an inductance of 350 µH, primary and secondary coil resistances of 900 mOhms each, and provides 1500 Vrms isolation voltage. It is shielded, housed in a compact SMD package measuring 12.7 mm by 9.27 mm, and functions reliably between -40°C and +85°C.

Pulse Transformers Feature Summary

• Supports 10/100/1000 Base-T Ethernet standards for high-speed data transmission
• Provides galvanic isolation via 1500 Vrms insulation voltage rating
• Integrated shielding minimizes electromagnetic interference (EMI)
• Surface-mount design facilitates automated PCB assembly

Pulse Transformers Applications

• Internet of Things (IoT) devices
• Network hubs and routers
• Ethernet switches
• IP cameras

Pulse Transformers Procurement Notes

Verify the specific datasheet version and RoHS compliance status prior to procurement. Confirm that the surface-mount footprint dimensions align precisely with the printed circuit board layout. Ensure thermal management strategies accommodate the specified operating temperature range during final product integration.

Pulse Transformers Selection Notes

Select this component for designs requiring integrated EMI shielding and support for Gigabit Ethernet speeds. The 1:1 turns ratio suits direct coupling applications. Verify that the 350 µH inductance meets the common-mode rejection requirements of the target network interface controller.

Pulse Transformers Part Context

This part belongs to the WE-LAN family from Würth Elektronik, specialized for LAN connectivity. It serves as a critical interface between the MAC layer and the physical medium, ensuring signal integrity and electrical safety in modern networking hardware.

Pulse Transformers Replacement Considerations

Consult official Wurth Elektronik documentation for verified substitute part numbers. Cross-reference pin configurations and electrical parameters before considering alternative components.