742792090

Overview

The Würth Elektronik 742792090 is a surface-mount ferrite bead from the WE-CBF series, designed for EMI suppression in signal lines. It features an 0805 (2012 metric) package with dimensions of 2 mm length, 1.2 mm width, and 0.9 mm height. The component provides an impedance of 1800 Ohms at a test frequency of 100 MHz. It supports a maximum DC current of 200 mA and has a maximum DC resistance of 0.4 Ohms. The device operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards.

Feature Summary

• Provides high-impedance attenuation for high-frequency noise on signal lines
• Automotive-grade reliability certified under AEC-Q200 standards
• Compact surface-mount footprint suitable for space-constrained PCB layouts

Applications

• Signal line filtering in automotive electronic systems
• EMI suppression for high-speed data interfaces
• Noise reduction in consumer electronics circuitry

Procurement Notes

Verify the specific impedance value and tolerance against the manufacturer's official datasheet prior to ordering, as specifications may vary by revision. Confirm that the AEC-Q200 qualification status aligns with your project's automotive compliance requirements. Ensure the selected packaging format matches your assembly line capabilities. Cross-reference the part number with authorized distributors to guarantee authenticity and traceability.

Selection Notes

Select this component when designing circuits requiring significant attenuation at 100 MHz with limited current capacity. The 0805 package offers a balance between thermal performance and board space efficiency. Consider the 200 mA current rating to prevent saturation during normal operation. The wide operating temperature range makes it suitable for harsh environments where standard commercial parts might fail.

Part Context

This ferrite bead belongs to the WE-CBF series, which focuses on compact EMI suppression solutions. Wurth Elektronik designs these components to meet stringent automotive and industrial standards. The series utilizes specialized ferrite materials optimized for high-frequency damping. This specific model represents a standard offering for general-purpose signal integrity enhancement in modern electronic assemblies.

Replacement Considerations

No public confirmed substitute part numbers are available.