BLM41PG181SH1L

Chip Ferrite Bead Overview

The Murata BLM41PG181SH1L is a single-line ferrite chip bead in the EMIFIL BLM41 series, housed in an 1806 (4516 metric) surface-mount package. It provides an impedance of 180 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 3.5 A and features a maximum DC resistance of 25 mOhms. It operates within a temperature range of -55°C to +125°C and holds AEC-Q200 automotive qualification.

Chip Ferrite Bead Feature Summary

• Provides electromagnetic interference suppression for power lines through high-impedance ferrite characteristics.
• Engineered for automotive applications with AEC-Q200 reliability qualification.
• Designed for surface-mount assembly using standard SMD/SMT termination types.

Chip Ferrite Bead Applications

• Automotive power line noise filtering
• Electromagnetic interference suppression circuits
• Power supply input/output filtering

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SH1L against official Murata documentation to confirm packaging configuration and tape-and-reel specifications. Ensure the procurement order matches the exact part number to avoid substitutions with similar series components that may have different current ratings or impedance profiles. Confirm RoHS compliance status directly from the manufacturer's latest datasheet before finalizing purchase orders.

Chip Ferrite Bead Selection Notes

Select this component when a 1806 footprint is required for power line filtering with a 3.5 A current rating. The 180 Ohm impedance at 100 MHz targets specific noise frequencies. Compare the 25 mOhms DC resistance against circuit loss requirements. Verify that the AEC-Q200 qualification meets the target application's automotive standards. Consider thermal performance within the specified -55°C to +125°C operating range.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM41 series of ferrite beads. The series offers various impedance values and current ratings in standardized packages. The BLM41PG181SH1L specifically addresses high-current automotive power rail applications requiring robust EMI suppression in a compact surface-mount form factor suitable for automated assembly processes.

Chip Ferrite Bead Replacement Considerations

Check Murata's official substitution guide for equivalent parts with matching impedance and current ratings. Verify package compatibility if replacing with other 1806 ferrite beads. Ensure any substitute maintains AEC-Q200 qualification if used in automotive contexts.

Chip Ferrite Bead FAQ

What is the test frequency for the 180 Ohm impedance specification?

The impedance of 180 Ohms is measured at a test frequency of 100 MHz.

Is this component qualified for automotive use?

Yes, the BLM41PG181SH1L is AEC-Q200 qualified for automotive applications.