74485540350

Arrays, Signal Transformers Overview

The Würth Elektronik 74485540350 is a WE-CFWI series coupled inductor designed for surface-mount applications. It features two coils with an inductance of 3.5 µH in parallel and 14 µH in series, offering a tolerance of ±20%. The component supports a maximum RMS current of 14 A and a saturation current of 27 A in parallel configuration, or 7 A and 13.5 A respectively in series. It has a maximum DC resistance of 12 mΩ in parallel. Operating within a temperature range of -40°C to +150°C, it measures 15.5 mm x 13.2 mm x 10.5 mm.

Arrays, Signal Transformers Feature Summary

• Dual-coil architecture enabling flexible series or parallel circuit integration
• High saturation current capability suitable for demanding power stages
• Shielded construction to minimize electromagnetic interference

Arrays, Signal Transformers Applications

• DC-DC converter input/output filtering
• Multiphase power supply interleaving
• Point-of-load regulation circuits

Arrays, Signal Transformers Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with the manufacturer before finalizing procurement. Confirm that the package dimensions and terminal configurations match the target PCB footprint exactly. Ensure thermal management strategies account for the specified operating temperature range and current ratings to maintain reliability under load conditions.

Arrays, Signal Transformers Selection Notes

Select this component when high current density and compact form factors are required for coupled inductor topologies. Evaluate the trade-off between parallel and series connection modes based on the specific ripple current requirements and phase balancing needs of the design. Consider the low DC resistance to optimize overall system efficiency and reduce copper losses in high-current paths.

Arrays, Signal Transformers Part Context

This part belongs to the WE-CFWI series of shielded coupled inductors from Würth Elektronik. These components are engineered for high-performance power conversion applications where space constraints and thermal efficiency are critical. The series provides reliable magnetic coupling for synchronous rectification and multiphase buck converters.

Arrays, Signal Transformers Replacement Considerations

No public confirmed substitute part numbers are available.