BLM15BD471SZ1D

Chip Ferrite Bead Overview

The BLM15BD471SZ1D is a single-line ferrite chip bead from the Murata BLM15_Z series, housed in a 0402 (1005 metric) surface-mount package. It provides an impedance of 75 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 300 mA and exhibits a maximum DC resistance of 600 mOhms. It operates within a temperature range of -55°C to +125°C and holds AEC-Q200 qualification for automotive reliability.

Chip Ferrite Bead Feature Summary

• Provides electromagnetic interference suppression through high-impedance noise filtering characteristics
• Features compact 0402 surface-mount packaging for space-constrained circuit board layouts
• Designed for signal line applications requiring specific impedance profiles at 100 MHz

Chip Ferrite Bead Applications

• Electromagnetic interference (EMI) suppression filters
• Noise filtering on high-speed signal lines
• Automotive electronic circuits requiring AEC-Q200 qualified components

Chip Ferrite Bead Procurement Notes

Verify the specific suffix against official documentation, as variations such as SN1D or SZ1D may indicate differences in termination materials or packaging formats. Confirm that the 75 Ohm impedance rating aligns with the design requirements, distinguishing it from similar models offering higher impedance values like 470 Ohms. Ensure compatibility with automated pick-and-place equipment given the small 0402 footprint.

Chip Ferrite Bead Selection Notes

Select this component when a lower impedance value of 75 Ohms is required compared to standard 470 Ohm variants. The 300 mA current rating suits moderate signal currents without significant saturation effects. Consider the AEC-Q200 certification if the application involves automotive environments. Evaluate the low DC resistance to minimize voltage drop across the filter in sensitive signal paths.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM15 series of ferrite beads, specifically the Z sub-series designed for general-purpose noise suppression. It shares the physical dimensions with other members of the family but differs in magnetic material properties to achieve the specified 75 Ohm impedance. It serves as a passive component alternative to active filtering solutions in compact electronics.

Chip Ferrite Bead Replacement Considerations

BLM15PX471SH1D offers higher current handling but different impedance. BLM15BX471SN1D provides higher impedance. Verify exact impedance matching before substitution.