BLM21BD151SN1D

Chip Ferrite Bead Overview

The Murata BLM21BD151SN1D is a single-line ferrite chip bead in the EMIFIL BLM21 series, housed in an 0805 (2012 metric) surface-mount package. It provides an impedance of 150 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 600 mA and exhibits a maximum DC resistance of 250 mOhms. It operates within a temperature range of -55°C to +125°C and features nickel barrier terminations with tin plating.

Chip Ferrite Bead Feature Summary

• Provides high-impedance noise suppression for signal lines in the RF spectrum
• Utilizes nickel barrier termination technology for reliable soldering
• Designed for compact surface-mount integration on printed circuit boards

Chip Ferrite Bead Applications

• EMI suppression filters for general electronic circuits
• Noise filtering for high-speed signal lines
• Power supply line decoupling in portable devices

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SN1D to confirm the presence of nickel barrier terminations and tin plating, as these affect solderability and compatibility with lead-free assembly processes. Ensure the selected variant matches the required 600 mA current rating for the target application to prevent saturation or excessive heating during operation.

Chip Ferrite Bead Selection Notes

Select this component when a 150 Ohm impedance at 100 MHz is required within a standard 0805 footprint. The 600 mA current handling capability makes it suitable for moderate power applications where space is constrained. Consider the 250 mOhm DC resistance impact on voltage drop if used in low-voltage power distribution paths.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM21 family of ferrite beads, which are widely used for electromagnetic interference suppression. The BLM21 series offers various impedance values and current ratings in the 0805 package, allowing designers to tailor noise filtering performance without increasing the board footprint size.

Chip Ferrite Bead Replacement Considerations

Cross-reference with other BLM21BD151 variants from Murata to verify termination material differences. Check competitor offerings in the 0805 ferrite bead category that match the 150 Ohm @ 100 MHz specification and 600 mA current rating for equivalent performance.