74273012

Overview

The Würth Elektronik 74273012 is a WE-MLS multiline EMI suppression ferrite bead designed for power line applications. It features an impedance of 249 Ohms at 100 MHz and supports a maximum current of 4 Amperes with a low DC resistance of 2 milliohms. The component utilizes an 8-terminal through-hole design, enabling the simultaneous suppression of multiple conductors within a single housing to optimize board space and enhance electromagnetic interference mitigation in dense circuit layouts.

Feature Summary

• Multiline configuration for simultaneous suppression of multiple power lines
• High impedance performance for effective EMI noise attenuation
• Through-hole mounting structure for robust mechanical stability

Applications

• Power supply input filtering
• DC bus line noise suppression
• Multi-conductor cable protection

Procurement Notes

Verify the specific impedance value and current rating against the official datasheet before integration. Confirm that the through-hole footprint matches the PCB layout requirements. Ensure the operating temperature range aligns with the system environment. Cross-reference the manufacturer part number to avoid confusion with similar series components.

Selection Notes

Select this component when multi-line EMI suppression is required in a compact form factor. The high current capability makes it suitable for power distribution networks. Evaluate the impedance profile at the target noise frequency to ensure adequate attenuation. Consider the physical dimensions and terminal spacing during the mechanical design phase.

Part Context

This component belongs to the WE-MLS series from Würth Elektronik, specialized for multiline electromagnetic interference suppression. The series focuses on providing efficient noise reduction for multiple conductors simultaneously, addressing the growing need for compact and effective filtering solutions in modern electronic devices.

Replacement Considerations

No public confirmed substitute part numbers are available.