742792031

Overview

The Würth Elektronik WE-CBF 742792031 is a surface-mount EMI suppression ferrite bead in an 0805 (2012 metric) package. It provides an impedance of 300 Ohms at 200 MHz with a rated current of 3000 mA. The component features a maximum DC resistance of 25 mOhms and operates within a temperature range of -55°C to +125°C. It complies with AEC-Q200 automotive standards and RoHS directives.

Feature Summary

• Provides high-frequency noise attenuation for signal integrity protection
• Supports high-current applications up to 3000 mA rating
• Complies with AEC-Q200 automotive qualification standards

Applications

• Automotive electronic circuits requiring EMI suppression
• High-speed digital signal line filtering
• Power supply output noise reduction

Procurement Notes

Verify the specific impedance frequency point, as datasheets may list 300 Ohms at either 100 MHz or 200 MHz depending on the revision. Confirm the package dimensions match the 0805 footprint requirements. Ensure the supplier documentation explicitly states AEC-Q200 compliance for automotive use cases.

Selection Notes

Select this component when high current handling is required alongside significant impedance at 200 MHz. The low DC resistance minimizes voltage drop in power lines. Verify thermal performance under continuous load conditions to ensure operation remains within the specified temperature limits.

Part Context

This part belongs to the WE-CBF series of surface-mount ferrite beads designed for EMI/RFI suppression. The series offers various impedance and current ratings in standard packages like 0402 and 0805, catering to both consumer electronics and automotive applications requiring robust noise filtering.

Replacement Considerations

Public confirmed substitute: None identified.