7427933

Overview

The Würth Elektronik 7427933 is a WE-PBF series ferrite bead designed for high-current applications. It features a flat wire construction and surface mount installation. The component provides an impedance of 39 ohms at 100 MHz with a maximum DC resistance of 600 microohms. It supports a current rating of 14 A and has an impedance tolerance of ±25%. The device utilizes a non-standard package suitable for power line filtering.

Feature Summary

• Flat wire construction for enhanced current handling
• High current capability up to 14 A
• Low DC resistance for minimal power loss

Applications

• Power supply output filtering
• DC-DC converter noise suppression
• High-current signal line EMI reduction

Procurement Notes

Verify the specific package dimensions against your PCB footprint, as this component uses a non-standard form factor. Confirm that the 14 A current rating aligns with your circuit's peak load requirements. Ensure the 39 Ohm impedance at 100 MHz meets your target frequency attenuation needs. Check for RoHS compliance status in the latest manufacturer documentation before finalizing procurement.

Selection Notes

Select this component when standard ferrite beads cannot handle the required 14 A current due to thermal limitations. The flat wire design offers lower profile and better thermal dissipation compared to traditional wound types. Consider the non-standard package size during layout planning. Evaluate if the 39 Ohm impedance curve matches the noise spectrum of your application effectively.

Part Context

This part belongs to the WE-PBF series from Würth Elektronik, which specializes in flat wire ferrite beads. These components are engineered for high-current power electronics where space and efficiency are critical. The series addresses the need for effective EMI suppression without introducing significant voltage drop or heat generation in high-amperage circuits.

Replacement Considerations

No public confirmed substitute part numbers are available.