BLM03HD331SZ1D

Chip Ferrite Bead Overview

The BLM03HD331SZ1D is a single ferrite chip bead from the EMIFIL BLM03HD series, manufactured by Murata Electronics. It features an impedance of 330 Ohms with a tolerance of 25% at a test frequency of 100 MHz. The component supports a maximum DC current of 200 mA and has a maximum DC resistance of 1 Ohm. It operates within a temperature range of -55°C to +125°C. The physical dimensions are 0.6 mm in length, 0.3 mm in width, and 0.3 mm in height, corresponding to the 0201 (0603 metric) package size.

Chip Ferrite Bead Feature Summary

• Designed for electromagnetic interference suppression in automotive infotainment systems
• Provides signal integrity maintenance through high-impedance noise absorption
• Utilizes compact surface-mount technology for dense circuit board integration

Chip Ferrite Bead Applications

• Automotive infotainment system noise filtering
• High-frequency signal line protection
• Compact electronic device EMI suppression

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'SZ1D' against official Murata documentation to confirm packaging configuration and automotive qualification status. Ensure the selected variant matches the required reel or cut tape specifications for your assembly process. Cross-reference the part number with the latest datasheet to validate RoHS compliance and AEC-Q200 certification requirements before procurement.

Chip Ferrite Bead Selection Notes

Select this component when space constraints require a 0201 footprint with moderate current handling capabilities. The 330 Ohm impedance value is suitable for suppressing noise in specific frequency bands around 100 MHz. Consider the 200 mA current rating to ensure the component does not saturate under normal operating conditions while maintaining effective attenuation characteristics.

Chip Ferrite Bead Part Context

This component belongs to the BLM03H__N series of ferrite beads, specifically engineered for automotive applications. The series emphasizes miniaturization and reliability in harsh environments. The BLM03HD331SZ1D variant integrates high-performance magnetic materials into a small form factor, addressing the increasing demand for efficient EMI control in modern vehicle electronics.

Chip Ferrite Bead Replacement Considerations

Consult official Murata substitution guides for equivalent parts within the BLM03 series. Verify that any alternative maintains the same 0201 footprint, 330 Ohm impedance, and 200 mA current rating. Ensure compatibility with automotive infotainment standards if replacing in existing designs.