744025220

Fixed Inductors Overview

The Würth Elektronik 744025220 is a shielded surface-mount power inductor from the WE-TPC series. It features a ferrite core and wirewound construction within a compact 2828 package measuring 2.8 mm x 2.8 mm x 1.1 mm. The component provides an inductance of 22 µH with a tolerance of ±20%. It supports a maximum DC current of 500 mA and a saturation current of 750 mA, with a maximum DC resistance of 575 mΩ. Operating temperatures range from -40°C to +125°C, and it exhibits a self-resonant frequency of 100 MHz.

Fixed Inductors Feature Summary

• Magnetically shielded design minimizes leakage fields for improved electromagnetic compatibility.
• Extremely flat profile suitable for space-constrained surface-mount applications.
• High current capability relative to its small physical footprint.

Fixed Inductors Applications

• DC-DC converter output filtering
• Point-of-load regulation circuits
• Portable electronic device power management

Fixed Inductors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct packaging and tolerance specifications. Confirm that the requested quantity aligns with standard reel sizes or cut-tape availability requirements. Cross-reference the part number with the latest RoHS compliance documentation to meet environmental regulatory standards for your target market.

Fixed Inductors Selection Notes

Select this component when a low-profile, shielded inductor is required for high-density PCB layouts. Ensure the application current does not exceed the 500 mA RMS rating to maintain efficiency. Verify that the 22 µH value meets the circuit's ripple current and transient response requirements. Consider the 575 mΩ DCR impact on overall system power loss during thermal analysis.

Fixed Inductors Part Context

This part belongs to the WE-TPC SMT Shielded Tiny Power Inductor family, designed for modern electronics requiring miniaturization. The series emphasizes high reliability and consistent performance across various power management topologies. Würth Elektronik utilizes advanced ferrite materials to optimize magnetic properties while maintaining a robust mechanical structure for automated assembly processes.

Fixed Inductors Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Engineers should consult the manufacturer directly for cross-reference recommendations or evaluate alternative shielded SMD inductors with matching electrical parameters and footprint dimensions.