7427927311

Overview

The Würth Elektronik 7427927311 is a single-line ferrite chip bead from the WE-CBF series, housed in a compact 0402 (1005 metric) surface-mount package. It provides an impedance of 120 Ohms at 100 MHz and supports a maximum DC current of 1.2 A with a maximum DC resistance of 90 milliohms. The component operates within a temperature range of -55°C to +125°C and measures 1.00 mm in length, 0.50 mm in width, and 0.55 mm in height.

Feature Summary

• Provides electromagnetic interference suppression for signal lines through high-frequency impedance characteristics.
• Designed for space-constrained applications utilizing a small 0402 surface-mount footprint.
• Capable of handling continuous currents up to 1.2 Amperes with low DC resistance.

Applications

• Signal line filtering in digital devices
• Electromagnetic interference suppression in compact electronics
• Automotive electronic circuits requiring AEC-Q200 qualification

Procurement Notes

Verify the specific ordering suffix to ensure the correct packaging format, such as tape and reel or cut tape, matches the assembly requirements. Confirm that the 0402 package dimensions align with the printed circuit board land pattern design. Ensure the selected variant meets the required AEC-Q200 automotive qualification standards if applicable to the target application environment.

Selection Notes

Select this component when a low-profile solution is needed for high-current signal paths requiring moderate attenuation at 100 MHz. The 1.2 A rating allows use in power-sensitive data lines where voltage drop must be minimized. Consider the 0402 size constraint against available board real estate and thermal dissipation capabilities during the design phase.

Part Context

This part belongs to the WE-CBF family of ferrite beads, which are engineered for EMI suppression in modern electronic systems. The series offers various impedance and current ratings across different package sizes to support diverse design needs. The 7427927311 specifically targets applications demanding a balance between current handling capacity and compact physical dimensions.

Replacement Considerations

Consult official manufacturer substitution lists for verified equivalents. Cross-referencing requires matching impedance values, current ratings, and package dimensions to ensure functional compatibility without redesigning the circuit layout.

FAQ

What is the maximum DC current rating for this ferrite bead?

The maximum DC current rating is 1.2 Amperes.

Does this component meet automotive reliability standards?

Yes, the component is qualified according to the AEC-Q200 standard.