7491193912

Overview

The Würth Elektronik 7491193912 is a Power over Ethernet (PoE) transformer designed for DC/DC converters and SMPS applications. It features 1500Vrms isolation, operates within a -40°C to +125°C temperature range, and supports switching frequencies of 200-500kHz. The component utilizes a surface-mount package measuring 17.5mm x 8.3mm x 22.1mm.

Feature Summary

• Integrated magnetic solution optimized for PoE power delivery systems
• High voltage isolation capability for safety compliance
• Designed for compact surface-mount assembly processes

Applications

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

Procurement Notes

Verify the specific datasheet version against the manufacturer's official documentation before integration. Confirm that the surface-mount footprint dimensions align with your PCB layout constraints. Ensure the operating temperature range meets your environmental requirements. Cross-reference the isolation voltage specifications with your system safety standards.

Selection Notes

Select this component when designing PoE interfaces requiring integrated magnetics. It is suitable for applications utilizing compatible controller chips such as LM5070 or TPS23750 families. Consider the physical size and thermal performance when evaluating alternative solutions for space-constrained enclosures.

Part Context

This part belongs to the WE-PoE series from Würth Elektronik, focusing on efficient and EMI-compliant power delivery. It serves as a critical interface component between the network port and the power conversion stage in modern networking hardware.

Replacement Considerations

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