7491195331

Overview

The Würth Elektronik 7491195331 is a surface-mount power transformer from the WE-PoEH series, designed for high-power Power over Ethernet applications. It features an EPQ13 core with 21µH inductance and supports 21.12W power delivery. The component operates within a frequency range of 200 to 400kHz and provides 1500Vrms isolation. It is suitable for DC/DC converters and SMPS topologies.

Feature Summary

• Designed specifically for high-power Power over Ethernet (PoE) implementations
• Provides robust electrical isolation between primary and secondary circuits
• Optimized for use in switching mode power supply architectures

Applications

• Power over Ethernet injectors and midspans
• DC/DC converter modules requiring PoE integration
• Switching Mode Power Supply (SMPS) designs

Procurement Notes

Verify that the specific part number matches the required high-power PoE specifications. Confirm surface-mount compatibility and isolation voltage ratings against system requirements. Ensure compliance with RoHS3 standards if environmental regulations apply to the final assembly process.

Selection Notes

Select this component when high power transfer capability is required for Ethernet-powered devices. Consider the EPQ13 package size and operating frequency range relative to the converter design. Evaluate thermal management needs given the 21.12W power handling capacity.

Part Context

This transformer belongs to the WE-PoEH family, which focuses on high-power Ethernet solutions. It complements other network components by providing efficient energy transmission alongside data signals. The series supports modern networking standards requiring increased power budgets.

Replacement Considerations

No public confirmed substitute part numbers are available.