74485540440

Arrays, Signal Transformers Overview

The Würth Elektronik 74485540440 is a WE-CFWI series coupled inductor featuring a flatwire construction. It offers a parallel inductance of 4.4 µH with a ±20% tolerance and a maximum DC current rating of 12 A. The component has a maximum DC resistance of 9.6 mΩ in parallel configuration, or 15.36 mΩ when connected in parallel as per specific datasheet listings. Dimensions are 15.5 mm x 13.2 mm x 10.5 mm. It operates between -40°C and +150°C.

Arrays, Signal Transformers Feature Summary

• Utilizes flatwire technology for high-current handling capabilities
• Provides coupled inductance for space-efficient power designs
• Features a shielded magnetic structure to minimize EMI

Arrays, Signal Transformers Applications

• DC-DC converter input/output filtering
• Multiphase power supply interleaving
• High-density point-of-load regulation stages

Arrays, Signal Transformers Procurement Notes

Verify the specific datasheet revision to confirm whether the DC resistance specification refers to the single coil value (9.6 mΩ) or the combined parallel resistance (15.36 mΩ). Ensure the selected package variant matches the required tape-and-reel or cut-tape quantity for your assembly line. Confirm RoHS compliance status through the manufacturer's official certification documents before finalizing procurement orders.

Arrays, Signal Transformers Selection Notes

Select this component for applications requiring high saturation current in a compact footprint. The flatwire design supports efficient thermal management compared to traditional wire-wound alternatives. Evaluate the 12 A current rating against peak load requirements to ensure adequate margin. Consider the 150°C operating temperature range for high-ambient environments.

Arrays, Signal Transformers Part Context

This part belongs to the WE-CFWI series, which specializes in coupled flatwire inductors. The series is designed for high-power density applications where size constraints are critical. Würth Elektronik engineers these components to meet stringent efficiency standards in modern switching power supplies.

Arrays, Signal Transformers Replacement Considerations

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