749119533

Overview

The Würth Elektronik 749119533 is a high-power Power over Ethernet (PoE) transformer from the WE-PoEH series, designed for board-mount applications. It features an isolation voltage of 1.5kV and operates within a temperature range of -40°C to 125°C. The component has primary voltage ratings of 34 to 72V and is intended for use in DC/DC converters and SMPS topologies. Its surface-mount package measures 13.46mm x 18.10mm with a maximum height of 12.70mm.

Feature Summary

• Engineered for high-power PoE applications requiring robust electromagnetic compatibility
• Provides reliable galvanic isolation for safe signal and power transmission
• Optimized for integration into compact surface-mount designs

Applications

• Power over Ethernet (PoE) systems
• DC/DC converter circuits
• Switching Mode Power Supply (SMPS) transformers

Procurement Notes

Verify the specific part number against official manufacturer documentation to confirm current availability and compliance status. Ensure that the selected component meets all required electrical specifications for the target application environment. Cross-reference datasheet revisions to account for any recent design or specification updates provided by the manufacturer.

Selection Notes

Select this component based on its high-power capabilities and wide operating temperature range suitable for demanding industrial environments. Consider the physical dimensions and surface-mount requirements for PCB layout compatibility. Evaluate the isolation voltage rating to ensure safety standards are met for the specific network infrastructure being implemented.

Part Context

This component belongs to the WE-PoEH series, which focuses on high-performance solutions for Power over Ethernet networks. The series supports efficient power delivery alongside data transmission, addressing the growing demand for integrated connectivity in modern electronic devices and infrastructure equipment.

Replacement Considerations

Consult official manufacturer substitution lists for verified alternative part numbers. Do not assume cross-compatibility with other series without explicit confirmation from technical documentation.