744032004

Fixed Inductors Overview

The Würth Elektronik 744032004 is a surface-mount fixed inductor from the WE-LQ series. It features an unshielded drum core wirewound construction with a ferrite core. The component has an inductance of 4.7 µH and a tolerance of ±20%. It supports a maximum DC current of 490 mA and a saturation current of 1.25 A. The DC resistance is 280 mΩ max. The package size is 1210 (3225 Metric), measuring 3.20 mm x 2.50 mm with a maximum height of 1.60 mm.

Fixed Inductors Feature Summary

• Unshielded drum core wirewound design for general-purpose applications
• Ferrite core material optimized for high-frequency performance
• AEC-Q200 qualified for automotive reliability standards
• Surface mount packaging suitable for automated assembly

Fixed Inductors Applications

• General-purpose power filtering in DC-DC converters
• Signal processing circuits requiring stable inductance
• Automotive electronics systems meeting AEC-Q200 requirements
• EMI suppression in compact consumer devices

Fixed Inductors Procurement Notes

Verify the specific datasheet version when ordering, as manufacturer updates may occur. Confirm that the 1210 footprint matches your PCB layout constraints precisely. Ensure thermal management plans account for the 280 mΩ DC resistance at full load. Check RoHS compliance certificates if required by your supply chain regulations. Validate that the 490 mA continuous current rating meets your circuit's operational demands under all temperature conditions.

Fixed Inductors Selection Notes

Choose this component when an unshielded design is acceptable to minimize cost and profile while maintaining reliable performance. The WE-LQ series offers a balance of electrical characteristics and physical dimensions suitable for space-constrained designs. Consider the 1.25 A saturation current limit to prevent performance degradation under peak loads. The standard 20% tolerance provides sufficient precision for most general power applications without requiring tighter, more expensive alternatives.

Fixed Inductors Part Context

This part belongs to the WE-LQ series of surface-mount power inductors manufactured by Würth Elektronik. The series is designed for general-purpose applications where moderate shielding is not critical. The 744032004 specifically utilizes a 1210 case size, offering a compact solution compared to larger industrial inductors. It complements other parts in the family that vary in inductance values and current ratings while sharing similar construction techniques.

Fixed Inductors Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.