BLM18HE102SZ1D

Chip Ferrite Bead Overview

The Murata BLM18HE102SZ1D is a single-line chip ferrite bead in the EMIFIL BLM18H series, designed for EMI suppression. It features a 0603 (1608 metric) surface-mount package with dimensions of 1.6 mm length, 0.8 mm width, and 0.95 mm maximum height. The component provides an impedance of 1 kOhms at 100 MHz with a tolerance of ±25%. It supports a maximum DC current of 600 mA and has a maximum DC resistance of 350 mOhms. Operating temperatures range from -55°C to +125°C. It is AEC-Q200 qualified for automotive applications.

Chip Ferrite Bead Feature Summary

• Provides high-impedance noise attenuation for signal lines in the MHz frequency range
• AEC-Q200 qualified for reliability in automotive electronic environments
• Compact 0603 footprint enables dense circuit board layout
• Low DC resistance minimizes power loss in high-current signal paths

Chip Ferrite Bead Applications

• Automotive infotainment system signal line filtering
• High-speed data interface EMI suppression
• General-purpose noise reduction in automotive electronics

Chip Ferrite Bead Procurement Notes

Verify the suffix Z1D confirms the specific tape-and-reel packaging configuration required for automated assembly. Confirm AEC-Q200 qualification status if automotive compliance is mandatory. Check RoHS3 and REACH compliance documentation against regional regulatory requirements. Ensure the 600mA rating aligns with the target circuit's continuous current demands to prevent saturation or thermal issues.

Chip Ferrite Bead Selection Notes

Select this component when a 1 kOhm impedance at 100 MHz is required for single-line noise suppression. The 600mA current rating suits moderate-signal applications rather than high-power lines. The 0603 size offers a balance between performance and space efficiency. Consider the BLM18SP series if higher current handling up to 1.2A is needed for similar impedance characteristics.

Chip Ferrite Bead Part Context

This part belongs to Murata’s BLM18H series of unshielded chip ferrite beads. The series is engineered for general EMI suppression in compact electronic devices. The BLM18HE variant specifically targets automotive-grade reliability standards. It complements other BLM18 models by offering optimized impedance profiles for signal integrity protection in noisy environments.

Chip Ferrite Bead Replacement Considerations

BLM18HE102SN1D is a verified alternative within the same series, sharing identical electrical specifications including 1 kOhm impedance and 600mA rating. Verify that any substitute maintains the same AEC-Q200 qualification and package dimensions for direct replacement.