750310018

Overview

The Würth Elektronik 750310018 is a surface-mount power transformer designed for Power over Ethernet (PoE) applications within DC/DC converter circuits. It belongs to the WE-PoE, MID-POE series and provides 1500Vrms isolation between windings. The component operates at a frequency of 200kHz with an inductance of 500µH measured at 10kHz. Primary voltage ratings range from 33V to 57V, while the auxiliary winding supplies 8V at 20mA.

Feature Summary

• Provides high-voltage isolation suitable for PoE interfaces
• Optimized for use in switch-mode power supply topologies
• Designed for surface-mount assembly processes

Applications

• Power over Ethernet (PoE) systems
• DC/DC converter modules
• Switching Mode Power Supply (SMPS) designs

Procurement Notes

Verify the specific datasheet revision against the manufacturing date code, as design corrections have been issued for this product line. Confirm that the required insulation class and isolation voltage meet the safety standards of the target equipment. Ensure the operating temperature range aligns with the specified limits for reliable performance in the final application environment.

Selection Notes

Select this component when designing PoE-powered devices requiring robust galvanic isolation. The 500µH inductance value supports standard flyback or forward converter architectures operating at 200kHz. Consider the physical dimensions and thermal characteristics during PCB layout to ensure adequate clearance and creepage distances for the 1500Vrms isolation rating.

Part Context

This transformer is part of Würth Elektronik's WE-PoE portfolio, specifically engineered for mid-span or end-span PoE injectors and switches. It integrates magnetic components necessary for efficient energy transfer over Ethernet cabling while maintaining strict isolation barriers required by IEEE standards for safe data and power transmission.

Replacement Considerations

No public substitute part numbers are documented.