7427929115

Overview

The Würth Elektronik 7427929115 is a surface-mount power ferrite bead from the WE-PF series, designed for EMI suppression in high-current applications. It exhibits an impedance of 15 kΩ at 100 MHz and supports a maximum current rating of 4.5 A. The component features a low DC resistance of 3.5 mΩ and operates within a temperature range of -55°C to +125°C. Housed in a 2520 (6450 metric) package, it measures 6.4 mm in length, 5.0 mm in width, and 2.0 mm in height.

Feature Summary

• Provides high-impedance EMI suppression across the 10 MHz to 100 MHz frequency range
• Engineered for high-current handling up to 10 A in the broader WE-PF series context
• Suitable for switch mode power supplies and power electronics environments

Applications

• Switch mode power supply input filtering
• Power electronics noise suppression
• High-current signal line EMI mitigation

Procurement Notes

Verify the specific impedance value and current rating against the official datasheet before integration, as variations exist within the WE-PF family. Confirm package dimensions and terminal compatibility with your PCB layout. Ensure the operating temperature range meets your environmental requirements. Cross-reference the manufacturer part number to avoid confusion with similar high-impedance components.

Selection Notes

Select this component when high attenuation is required in the 10 MHz to 100 MHz band for power lines carrying significant current. The low DC resistance minimizes power loss and voltage drop compared to standard ferrite beads. Consider the 2520 package size for adequate thermal dissipation and mechanical stability in high-power designs.

Part Context

This part belongs to the WE-PF series of SMD EMI suppression power ferrite beads. The series is characterized by its ability to handle high currents while providing substantial impedance for noise reduction. It complements other Würth ferrite solutions like the WE-CBF series, which targets lower current signal lines with smaller footprints.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's selection guide for equivalent impedance and current ratings if direct substitution is required.