749196510

Overview

The Würth Elektronik 749196510 is a surface-mount SMPS transformer from the WE-FLEX series, designed for flexible DC/DC converter configurations. It features a 9.9 µH inductance and supports a maximum current rating of 1.17 A to 1.91 A depending on specific operational parameters. The component provides 500 V DC isolation voltage and utilizes an air gap core design. Key electrical specifications include a turns ratio of 1:1:1:1:1:1 and operation within standard industrial temperature ranges. Its compact SMD package facilitates automated assembly in space-constrained power supply applications.

Feature Summary

• Flexible configurable architecture suitable for various DC/DC converter topologies
• High voltage isolation capability ensuring safety in isolated power stages
• Integrated air gap design optimizing performance for switch-mode applications

Applications

• Isolated DC/DC converter modules
• Multi-output power supply designs
• Industrial control system power stages

Procurement Notes

Verify the specific datasheet revision to confirm exact current ratings and pinout configurations, as WE-FLEX components may have variant specifications. Ensure compatibility with your PCB footprint and reflow soldering profile. Cross-reference manufacturer documentation for precise thermal management requirements and mechanical tolerances before finalizing procurement.

Selection Notes

Select this component when high isolation voltage and flexible winding configurations are required for DC/DC conversion. Compare inductance values and current handling capabilities against your specific load requirements. Consider the surface-mount form factor for automated manufacturing processes and verify that the operating frequency range aligns with your switching regulator design.

Part Context

This part belongs to the WE-FLEX series of transformers from Würth Elektronik, which emphasizes customizable magnetic solutions for power electronics. The series targets designers needing adaptable transformer characteristics for complex power conversion needs. It complements other discrete magnetics by offering integrated, pre-configured options that reduce design time and improve consistency in production environments.

Replacement Considerations

Direct substitutes must match the 9.9 µH inductance, 500 V isolation, and 1:1:1:1:1:1 turns ratio. Verify physical dimensions and pin assignments to ensure PCB compatibility. Alternative parts should offer similar current ratings and operate within the same temperature range without requiring circuit redesign.