BLM15AX121SZ1D

Chip Ferrite Bead Overview

The Murata BLM15AX121SZ1D is an unshielded chip ferrite bead in a 0402 (1005 metric) SMD package. It provides 120 Ohms impedance at 100 MHz with a 25% tolerance. The component supports a maximum DC current of 700 mA and has a maximum DC resistance of 130 mOhms. It operates between -55°C and +125°C, meets AEC-Q200 automotive qualification standards, and weighs approximately 1 mg.

Chip Ferrite Bead Feature Summary

• AEC-Q200 qualified for automotive reliability
• Compact 0402 surface-mount footprint
• Unshielded design for signal line noise suppression

Chip Ferrite Bead Applications

• Automotive infotainment systems
• Power supply filtering
• Signal line noise suppression

Chip Ferrite Bead Procurement Notes

Verify the specific suffix against official Murata documentation to confirm exact electrical characteristics and packaging options. Ensure the selected variant matches the required impedance and current ratings for the target circuit. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement specifications.

Chip Ferrite Bead Selection Notes

Select this component when a compact 0402 ferrite bead is required for automotive applications. The 700 mA rating suits moderate current paths, while the 120 Ohm impedance targets high-frequency noise. Verify that the 130 mOhms DC resistance fits the power loss constraints of the specific application environment.

Chip Ferrite Bead Part Context

This part belongs to the BLM15_Z series of chip ferrite beads from Murata Electronics. The series offers various impedance and current combinations within the standard 0402 package size. These components are designed for general-purpose noise suppression in electronic circuits requiring small form factors.

Chip Ferrite Bead Replacement Considerations

Consult Murata's official substitution guide for verified alternatives. Cross-referencing requires matching impedance, current rating, and package dimensions.