74270012

Overview

The Würth Elektronik part number 74270012 is a cylindrical ferrite cable core belonging to the WE-SAFB series. It features an inner diameter of 1.6 mm and an outer diameter of 4.1 mm, with a total length of 4 mm. The component provides an impedance of 39 Ohms at a frequency of 25 MHz. This design facilitates effective electromagnetic interference suppression for small-diameter cables.

Feature Summary

• Cylindrical snap-on ferrite core designed for direct clamping onto cables
• Provides high attenuation performance in the low-frequency range
• Compact geometry suitable for tight installation spaces

Applications

• Electromagnetic interference suppression on signal lines
• Noise reduction on data communication cables
• Common mode noise filtering on power supply wires

Procurement Notes

Verify the specific impedance requirement against application needs, as this model offers 39 Ohms at 25 MHz. Confirm that the target cable diameter falls within the 1.6 mm inner diameter tolerance. Ensure the operating environment does not exceed the material's thermal limits. Cross-reference the We-Safb series designation to confirm compatibility with existing assembly processes.

Selection Notes

Select this component when targeting low-frequency common mode noise on cables with diameters up to 1.6 mm. The 39 Ohm impedance at 25 MHz makes it suitable for general-purpose EMI suppression rather than high-frequency RF applications. Consider the snap-on form factor for rapid manual or automated assembly compared to split-core alternatives requiring screws.

Part Context

This ferrite core is part of the We-Safb series from Würth Elektronik, which specializes in passive components for electronic systems. The series focuses on providing reliable EMI suppression solutions through standardized cylindrical cores. These components are engineered for consistent magnetic properties across production batches to ensure predictable circuit performance.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.