749020111A

Pulse Transformers Overview

The Würth Elektronik 749020111A is a surface mount pulse transformer designed for 10/100/1000 BASE-T Ethernet interfaces. It features a single port configuration with a 1:1 turns ratio and an inductance of 350 µH. The component supports a common mode voltage of 1.5 kV and operates within a temperature range of -40°C to +85°C. It utilizes a compact SMD package suitable for automated assembly processes.

Pulse Transformers Feature Summary

• Engineered for robust integration into high-speed Ethernet network interfaces
• Provides galvanic isolation between the PHY and the transmission medium
• Optimized for signal integrity in Gigabit Ethernet applications

Pulse Transformers Applications

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

Pulse Transformers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct packaging and pinout compatibility. Confirm that the component meets the required environmental standards for the target application environment prior to final design approval.

Pulse Transformers Selection Notes

Select this component when designing systems requiring reliable isolation for Gigabit Ethernet connections. Ensure the PCB layout accommodates the specified surface mount footprint and maintains adequate clearance for the rated common mode voltage to prevent dielectric breakdown.

Pulse Transformers Part Context

This part belongs to the WE-LAN series, which provides transformers specifically tailored for LAN applications. The series includes variants for different speeds and port configurations, supporting various industrial and consumer networking requirements.

Pulse Transformers Replacement Considerations

Consult official substitution lists from Würth Elektronik for direct replacements. Verify electrical parameters and mechanical dimensions before integrating any alternative components into the design.