750343576

Switching Converter, SMPS Transformers Overview

The Würth Elektronik part number 750343576 is a power transformer designed for Power-over-Ethernet (PoE) applications. It belongs to the MID-POETI series and utilizes an ER19/4.8/15 core configuration. The component is intended for surface-mount technology (SMT) installation on printed circuit boards. Key electrical specifications include an inductance of 100 µH and an operating frequency range between 200 kHz and 700 kHz. This transformer supports DC/DC conversion within switching mode power supply (SMPS) architectures, providing isolation suitable for PoE standards.

Switching Converter, SMPS Transformers Feature Summary

• Designed specifically for Power-over-Ethernet (PoE) DC/DC converter topologies
• Utilizes ER19/4.8/15 core geometry for compact surface-mount integration
• Operates within a high-frequency range of 200 kHz to 700 kHz
• Provides galvanic isolation for secure signal and power transmission

Switching Converter, SMPS Transformers Applications

• Power-over-Ethernet (PoE) injectors and midspans
• DC/DC converter modules requiring isolated power stages
• Switching Mode Power Supply (SMPS) designs for network equipment
• Industrial IoT devices with PoE power input capabilities

Switching Converter, SMPS Transformers Procurement Notes

Verify the specific datasheet revision and mechanical dimensions prior to finalizing the design, as manufacturing updates may occur. Confirm that the target PCB footprint matches the SMT package specifications provided in the official Wurth Elektronik documentation. Ensure that the thermal management strategy aligns with the transformer's power dissipation characteristics under maximum load conditions.

Switching Converter, SMPS Transformers Selection Notes

Select this component when designing PoE systems requiring a 100 µH inductance value within the 200-700 kHz frequency band. The ER19/4.8/15 form factor is suitable for space-constrained surface-mount layouts. Evaluate the isolation requirements against the application's safety standards to ensure compatibility with the transformer's voltage ratings.

Switching Converter, SMPS Transformers Part Context

This transformer is part of the MID-POETI series from Würth Elektronik, which focuses on solutions for Power-over-Ethernet applications. The series addresses the growing demand for integrated power and data transmission in modern networking infrastructure. The MID-POETI line offers standardized components to simplify the development of compliant PoE endpoints and intermediate devices.

Switching Converter, SMPS Transformers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. When evaluating alternatives, prioritize transformers with identical ER19/4.8/15 core sizes, 100 µH inductance, and compatible frequency ranges to maintain circuit performance.