744045004

Fixed Inductors Overview

The Würth Elektronik WE-LQ 744045004 is a surface-mount power inductor with an inductance of 4.7 µH and a tolerance of ±20%. It features a drum core, wirewound construction using ferrite material. The component has a maximum DC resistance of 150 mΩ and supports a rated current of 1.24 A with a saturation current of 2 A. Operating within a temperature range of -40°C to +105°C, it utilizes an unshielded design suitable for high-frequency applications.

Fixed Inductors Feature Summary

• Unshielded drum core wirewound construction for reduced magnetic interference
• Ferrite core material optimized for high-frequency performance
• Surface mount package designed for automated assembly processes

Fixed Inductors Applications

• DC-DC converter output filtering
• Power supply input stages
• General-purpose signal processing circuits

Fixed Inductors Procurement Notes

Verify the specific suffix and manufacturing date code against the latest manufacturer datasheet to ensure compliance with RoHS3 standards. Confirm that the supplied reel quantity matches your production requirements. Cross-reference the part number with official distributor catalogs to validate authenticity and traceability before finalizing procurement orders.

Fixed Inductors Selection Notes

Select this component when an unshielded inductor is required to minimize magnetic coupling in dense layouts. Ensure the 1.24 A RMS current rating meets the continuous load requirements. Verify that the 150 mΩ DCR aligns with efficiency targets. Confirm the 1812 footprint fits the PCB silkscreen and copper pad design constraints.

Fixed Inductors Part Context

This part belongs to the WE-LQ series of fixed power inductors from Würth Elektronik. The series offers various inductance values and current ratings in standardized SMD packages. The 744045004 specifically addresses applications needing moderate inductance with high current handling capabilities in a compact form factor.

Fixed Inductors Replacement Considerations

The Murata LQH43NN4R7K03L serves as a comparable alternative. Note differences in current ratings and DC resistance. Verify mechanical compatibility and electrical parameter alignment before substitution.