BLM15PE121SH1D

Chip Ferrite Bead Overview

The Murata BLM15PE121SH1D is a single-line chip ferrite bead in the BLM series, designed for power line noise suppression. It features an impedance of 120 Ohms at 100 MHz with a maximum DC resistance of 90 mOhms and a rated current of 1.5 A. The component utilizes a 0402 (1005 metric) surface-mount package measuring 1.0 mm x 0.5 mm x 0.55 mm. It operates within a temperature range of -55°C to +125°C and holds AEC-Q200 automotive qualification.

Chip Ferrite Bead Feature Summary

• Provides effective high-frequency noise attenuation on power lines through magnetic dissipation.
• Supports high-current applications with a 1.5 A rated current capacity.
• Complies with AEC-Q200 standards for automotive reliability requirements.

Chip Ferrite Bead Applications

• Power supply filtering in automotive electronic control units
• Noise suppression for DC power lines in vehicle infotainment systems
• EMI reduction in automotive sensor circuits

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SH1D against official Murata documentation to confirm packaging and tape specifications. Ensure the selected variant matches the required 0402 footprint and 1.5 A current rating for the target circuit design. Cross-reference the datasheet for precise impedance tolerances and thermal characteristics before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when designing for automotive environments requiring AEC-Q200 compliance. The 120 Ohm impedance at 100 MHz targets common switching noise frequencies. Verify that the 1.5 A current rating exceeds the maximum operating current of the protected line to prevent saturation. The 0402 package suits space-constrained PCB layouts.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM EMIFIL series, which specializes in chip ferrite beads for EMI suppression. The BLM15 series specifically offers compact footprints suitable for dense electronics. The PE designation indicates specific electrical characteristics within the broader product family, distinguishing it from other impedance or current variants.

Chip Ferrite Bead Replacement Considerations

Check Murata's official substitution guide for equivalent parts with matching 120 Ohm impedance and 1.5 A ratings. Ensure any substitute maintains the 0402 package dimensions and AEC-Q200 qualification if automotive use is required.

Chip Ferrite Bead FAQ

What is the test frequency for the specified impedance?

The impedance of 120 Ohms is measured at a test frequency of 100 MHz.

Is this component qualified for automotive applications?

Yes, the BLM15PE121SH1D meets the AEC-Q200 standard for passive components used in automotive electronics.