BLM03BC330SZ1D

Chip Ferrite Bead Overview

The Murata BLM03BC330SZ1D is a single-line chip ferrite bead in the EMIFIL BLM03 series, housed in an unshielded 0201 (0603 metric) surface-mount package measuring 0.6 mm x 0.3 mm x 0.3 mm. It provides an impedance of 33 Ohms at a test frequency of 100 MHz with a tolerance of ±25%. The component supports a maximum DC current of 150 mA and features a maximum DC resistance of 850 mOhms. It operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards.

Chip Ferrite Bead Feature Summary

• Designed to function as a resistor at noise frequencies to reduce resonance risks
• Maintains signal waveform integrity during high-frequency suppression
• Unshielded construction suitable for standard EMI filtering applications

Chip Ferrite Bead Applications

• Automotive infotainment system noise suppression
• High-speed digital signal line filtering
• Power supply line EMI reduction in compact electronics

Chip Ferrite Bead Procurement Notes

Verify the specific suffix against official Murata documentation to confirm exact impedance and current ratings. Ensure the selected packaging format matches production requirements. Confirm RoHS3 compliance status for regulatory adherence. Validate AEC-Q200 certification if deploying in automotive environments. Cross-reference datasheet revisions to ensure design compatibility.

Chip Ferrite Bead Selection Notes

Select this component when space constraints require a 0201 footprint for EMI suppression. Choose based on the required 33 Ohm impedance at 100 MHz for target noise frequencies. Ensure the circuit current remains below the 150 mA limit to prevent saturation. Consider the unshielded nature for general-purpose filtering where magnetic coupling is not critical.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM03 series of chip ferrite beads, designed for compact electronic designs. The series offers various impedance values in the 0201 package size. It targets applications requiring effective noise suppression in limited board space while maintaining signal quality.

Chip Ferrite Bead Replacement Considerations

Consult official Murata substitution guides for verified equivalents. Check impedance curves and current ratings carefully. Ensure physical dimensions match the existing footprint.