749023016

Pulse Transformers Overview

The Würth Elektronik 749023016 is a WE-LAN series pulse transformer designed for Surface Mount Technology (SMT) applications. It supports 10/100/1000 Base-T Ethernet standards with a single port configuration. The component features a 350 µH inductance and a 1CT:1CT turns ratio. It operates within a frequency range of 1 MHz to 100 MHz and withstands an insulation voltage of 1500 VAC. The unit is shielded, has a quad channel count, and functions between 0°C and +70°C. Primary and secondary coil resistances are both 900 mOhms. The physical dimensions are 17.1 mm x 15.34 mm x 8.4 mm.

Pulse Transformers Feature Summary

• Supports 10/100/1000 Base-T Ethernet transmission standards
• Surface mount construction for automated assembly
• Integrated shielding for electromagnetic interference reduction

Pulse Transformers Applications

• Ethernet network interface circuits
• Computer motherboard LAN ports
• Industrial communication equipment

Pulse Transformers Procurement Notes

Verify the current production status before ordering, as this specific part number may be obsolete or discontinued according to available distributor records. Confirm that the SMT package dimensions and electrical specifications align with the target design requirements. Ensure compatibility with the intended Ethernet PHY controller. Check for valid replacement alternatives if the original component is no longer manufactured.

Pulse Transformers Selection Notes

Select this component for designs requiring integrated isolation and signal conditioning for Gigabit Ethernet. The SMT form factor suits high-density PCB layouts. Verify that the operating temperature range meets the environmental constraints of the final application. Ensure the board layout accommodates the specified footprint and height restrictions.

Pulse Transformers Part Context

This component belongs to the WE-LAN family from Würth Elektronik, specialized for LAN connectivity. It serves as a critical interface element between the MAC layer and the physical medium. The transformer provides galvanic isolation and common-mode noise rejection essential for reliable data transmission in networked systems.

Pulse Transformers Replacement Considerations

Public sources indicate this product is obsolete. Consider alternative parts from the same manufacturer's current portfolio or compatible third-party suppliers that meet IEEE 802.3ab specifications.