BLM15BD221SZ1D

Chip Ferrite Bead Overview

The Murata BLM15BD221SZ1D is a chip ferrite bead in the BLM15 series, designed for surface-mount applications. It features a 0402 (1005 metric) package with dimensions of 1 mm length, 0.5 mm width, and 0.5 mm height. The component provides an impedance of 220 Ohms at a test frequency of 100 MHz. It supports a maximum DC current of 300 mA and has a maximum DC resistance of 400 mOhms. The device operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards.

Chip Ferrite Bead Feature Summary

• Provides electromagnetic interference suppression through high-impedance characteristics at specific frequencies.
• Designed for compact surface-mount integration using standard 0402 footprints.
• Qualified for automotive environments under AEC-Q200 reliability standards.

Chip Ferrite Bead Applications

• EMI suppression filters for high-speed signal lines
• General-purpose noise filtering in electronic circuits

Chip Ferrite Bead Procurement Notes

Verify that the ordering suffix matches the required packaging configuration, as variations exist between tape-and-reel and bulk formats. Confirm the specific performance grade indicated by the middle characters aligns with the target current and impedance requirements. Ensure compliance with RoHS and REACH directives is documented for the specific batch. Cross-reference the manufacturer datasheet for precise handling instructions related to the small form factor.

Chip Ferrite Bead Selection Notes

Select this component when a 220 Ohm impedance at 100 MHz is required within a 0402 footprint. The 300 mA current rating suits moderate power applications where space is constrained. Consider the 400 mOhm DC resistance impact on voltage drop. Verify thermal management capabilities given the small physical size and operating temperature limits up to 125°C.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM15 series of chip ferrite beads, which are widely used for noise suppression in portable electronics and automotive systems. The series offers various impedance and current ratings across standardized packages. The BLM15BD variant specifically targets applications requiring higher current handling compared to standard low-current beads while maintaining a compact profile.

Chip Ferrite Bead Replacement Considerations

BLM15BB221SN1D: Similar impedance but lower current rating (200 mA). BLM15BD221SZ1D: Direct equivalent from different packaging sources. BLM15AG221SN1D: Higher current rating (450 mA) in same package.