742792514

Overview

The Würth Elektronik 742792514 is a surface-mount EMI suppression ferrite bead from the WE-CBF series. It features an 1812 (4532 metric) package with dimensions of 4.5 mm length, 3.2 mm width, and 1.6 mm height. The component provides an impedance of 600 Ohms at a test frequency of 100 MHz. It supports a maximum DC current of 3000 mA and has a maximum DC resistance of 12 mOhms. The device operates within a temperature range of -55°C to +125°C and holds AEC-Q200 qualification for automotive reliability.

Feature Summary

• Multi-layer ceramic construction for compact surface-mount integration
• High current handling capability suitable for power line filtering
• Automotive grade qualification ensuring reliability in harsh environments

Applications

• Automotive electronic circuit protection
• Power supply output filtering
• EMI suppression on high-current signal lines

Procurement Notes

Verify the specific impedance value and current rating against the official datasheet before procurement, as these parameters are critical for circuit performance. Confirm that the 1812 package dimensions match the PCB footprint requirements. Ensure the supplier provides documentation confirming AEC-Q200 compliance if the application mandates automotive standards. Check for any recent product change notices that might affect material composition or manufacturing location.

Selection Notes

Select this component when high current capacity is required alongside effective high-frequency noise attenuation. The 1812 package offers a balance between current handling and board space efficiency compared to smaller footprints. Consider the 600 Ohm impedance profile at 100 MHz to ensure it aligns with the target noise frequencies. The low DC resistance minimizes voltage drop and power loss in high-current paths, making it suitable for power delivery networks.

Part Context

This part belongs to the WE-CBF series of multi-layer ferrite beads designed for EMI suppression. The series utilizes proprietary ferrite materials optimized for broadband noise absorption. The 742792514 variant specifically targets applications requiring robust current handling in a standard industrial package size. It complements lower-current variants in the same family by providing enhanced thermal stability under heavy load conditions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify compatibility with alternative manufacturers by matching impedance curves, current ratings, and physical dimensions.