74279273

Overview

The Würth Elektronik 74279273 is a surface-mount ferrite chip bead designed for signal line EMI suppression. It features a 0402 (1005 metric) package with dimensions of 1.00mm length, 0.50mm width, and a maximum height of 0.55mm. The component provides an impedance of 20 Ohms at 100 MHz and supports a maximum DC current of 300mA. Its maximum DC resistance is 200 milliohms, and it operates within a temperature range of -55°C to +125°C.

Feature Summary

• Provides effective electromagnetic interference suppression for high-speed signal lines
• Compact 0402 footprint enables dense circuit board layouts
• Low DC resistance minimizes voltage drop in signal paths

Applications

• High-speed digital signal line filtering
• Portable electronic device EMC mitigation
• Automotive electronics signal protection

Procurement Notes

Verify the part status as discontinued before procurement planning. Confirm that the recommended substitute 74279274 meets all electrical and mechanical requirements for your specific application design.

Selection Notes

Select this component for applications requiring small form factor EMI filtering on single signal lines. Ensure the operating current remains below the 300mA rating to maintain performance and reliability standards.

Part Context

This component belongs to the WE-CBF series of ferrite beads from Würth Elektronik. The series is engineered for surface mount technology and offers various impedance values and current ratings to suit different EMI suppression needs across consumer and industrial electronics.

Replacement Considerations

The manufacturer recommends part number 74279274 as the replacement for this discontinued item.