7491199331

Overview

The Würth Elektronik part number 7491199331 is a Power over Ethernet (PoE) transformer designed for surface mount applications. It features an ER13 core size with an inductance of 127µH and a DC resistance of 440mΩ. The component provides 1500Vrms isolation voltage and supports IEEE 802.3at standards. It operates within a temperature range of -40°C to 125°C, ensuring reliability in demanding environments.

Feature Summary

• Provides galvanic isolation for PoE power delivery
• Supports IEEE 802.3at compliance
• Designed for surface mount PCB integration

Applications

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

Procurement Notes

Verify the manufacturer part number 7491199331 against official Wurth Elektronik documentation to confirm specifications. Ensure compatibility with ER13 package requirements and check for updated datasheets regarding thermal performance and isolation ratings before procurement.

Selection Notes

Select this component for applications requiring high-temperature operation up to 125°C and robust isolation. Consider the 127µH inductance and 440mΩ resistance values for circuit design matching. Verify space constraints for the ER13 footprint and ensure the 1500Vrms isolation meets safety standards.

Part Context

This component belongs to the Würth Elektronik WE-PoE series, which specializes in transformers for Power over Ethernet applications. The series focuses on providing reliable power and data transmission solutions for networked devices, integrating magnetic components with specific electrical characteristics for efficient system design.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.