7427803

Overview

The Würth Elektronik 7427803 is a flat ferrite core from the WE-FLAT series, designed for flexible printed circuit boards. It utilizes 4W620 material to provide electromagnetic interference suppression. The component features an inside length of 27 mm, an outside width of 31 mm, and an outside length of 12 mm. Its impedance is specified at 66 ohms. This snap-on style core allows for easy installation on cables without soldering.

Feature Summary

• Snap-on design facilitates rapid installation on existing cables
• Optimized geometry for flexible printed circuit board applications
• Constructed with 4W620 ferrite material for effective noise suppression

Applications

• General electronic equipment
• Flexible printed circuit board integration
• Cable noise filtering in consumer electronics

Procurement Notes

Verify the specific datasheet version when ordering, as manufacturer documentation may undergo revisions. Confirm that the application environment remains within general electronic equipment limits, as this component is not authorized for automotive or medical use. Ensure physical dimensions align with cable bundle constraints before finalizing procurement.

Selection Notes

Select this part when space constraints require a low-profile magnetic core for flexible circuits. The 66-ohm impedance suits moderate frequency noise attenuation. Compare against round cores if higher current capacity or different aperture sizes are needed. The flat profile is distinct from standard cylindrical ferrites, offering unique routing advantages.

Part Context

This component belongs to the WE-FLAT series by Würth Elektronik, which specializes in flat ferrite cores for PCB-related applications. Unlike the STAR-TEC series which uses larger snap-on rings, the WE-FLAT line focuses on compact solutions for flat cables and flexible interconnects, providing targeted EMI control in tight spaces.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Users must evaluate alternative flat ferrite cores based on matching impedance, material composition, and dimensional tolerances.