7427503

Overview

The Würth Elektronik 7427503 is a WE-UKW series EMI suppression ferrite bead designed for axial leaded through-hole mounting. It features a six-hole configuration to accommodate multiple conductors or wire wrapping. The component exhibits an impedance of 938 ohms at a test frequency of 100 MHz and supports a DC current rating of 3 A. Its physical dimensions include a length of 40 mm, with a low DC resistance characteristic suitable for power line filtering applications.

Feature Summary

• Six-hole axial design allows for multi-wire or wrapped conductor integration
• High impedance performance effective for EMI noise suppression
• Robust current handling capability for power circuit protection

Applications

• EMI suppression on digital signal lines
• Power supply input/output filtering
• Cable assembly noise reduction

Procurement Notes

Verify the specific impedance tolerance and DC resistance values against the official datasheet before implementation. Confirm that the axial lead spacing matches the target PCB footprint requirements. Ensure the 3 A current rating aligns with the maximum operating current of the application circuit to prevent thermal issues.

Selection Notes

Select this component when high attenuation is required at 100 MHz for axial wiring configurations. The six-hole structure provides flexibility for bundling wires compared to standard single-hole beads. Consider the 40 mm body length during layout planning to ensure adequate clearance within the enclosure.

Part Context

This part belongs to the WE-UKW series of EMI suppression components from Würth Elektronik. These beads are engineered for robust noise cancellation in electronic assemblies. The series offers various impedance levels and current ratings to suit different filtering demands across industrial and consumer electronics.

Replacement Considerations

Direct substitutes must match the 938 Ohm impedance at 100 MHz, 3 A current rating, and six-hole axial form factor. Verify equivalent material composition for similar frequency response characteristics.