742792161

Overview

The Würth Elektronik 742792161 is a Surface Mount Technology (SMT) EMI suppression ferrite bead from the WE-CBF series. It features a 1206 [3216 Metric] package with dimensions of 3.2 mm length, 1.6 mm width, and 1.1 mm height. The component provides an impedance of 1000 Ω at 100 MHz and supports a maximum DC current rating of 1.1 A. It has a maximum DC resistance of 300 mOhms and operates within a temperature range of -55°C to +125°C.

Feature Summary

• High-speed EMI suppression capability for signal integrity protection
• Shielded construction to minimize external magnetic field interference
• AEC-Q200 qualified for automotive electronic reliability standards

Applications

• High-speed data line filtering in automotive electronics
• EMI suppression on USB and high-speed interface cables
• Noise reduction in compact consumer electronic devices

Procurement Notes

Verify the specific impedance tolerance and DC resistance values against the official datasheet before integration. Confirm that the 1206 package footprint matches the PCB layout design. Ensure the selected variant meets the required AEC-Q200 qualification if used in automotive applications. Cross-reference the manufacturer part number to avoid confusion with similar series components.

Selection Notes

Select this component when high impedance is required for noise suppression in space-constrained designs. The 1.1 A current rating suits moderate power applications without significant self-heating. The shielded type is preferred where adjacent sensitive traces require isolation. Verify thermal performance under continuous DC load conditions.

Part Context

This ferrite bead belongs to the WE-CBF series, designed specifically for SMT assembly processes. It addresses the growing need for effective EMI control in miniaturized electronics. The series offers various impedance options to match different frequency requirements while maintaining a small profile suitable for dense board layouts.

Replacement Considerations

Check for direct substitutes within the same WE-CBF series offering identical 1000 Ω impedance and 1206 footprint. Verify that any alternative maintains the same AEC-Q200 certification and current handling capabilities.