BLM18HD601SZ1D

Chip Ferrite Bead Overview

The Murata BLM18HD601SZ1D is a single-line ferrite chip bead in the EMIFIL BLM18H series, designed for high-impedance noise suppression. It features a 0603 (1608 metric) surface-mount package with dimensions of 1.6 mm length, 0.8 mm width, and 0.8 mm height. The component provides an impedance of 600 Ohms at a test frequency of 100 MHz with a tolerance of ±25%. It supports a maximum DC current of 100 mA and has a maximum DC resistance of 1.5 Ohms. Operating temperatures range from -55°C to +125°C, and it holds AEC-Q200 qualification.

Chip Ferrite Bead Feature Summary

• Provides high attenuation for broadband noise in signal lines through significant impedance generation at target frequencies.
• Engineered for automotive reliability with formal AEC-Q200 qualification status.
• Utilizes a compact 0603 footprint to facilitate dense circuit board layouts while maintaining thermal stability across wide temperature ranges.

Chip Ferrite Bead Applications

• Automotive infotainment system noise filtering
• High-speed digital signal line protection
• Power supply output noise suppression

Chip Ferrite Bead Procurement Notes

Verify the suffix 'SZ1D' against official Murata documentation to confirm specific packaging and tape-and-reel specifications. Ensure the selected variant matches the required impedance tolerance and current rating for the target application environment. Cross-reference the part number with the latest datasheet to confirm RoHS compliance and availability status before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when a 600 Ohm impedance at 100 MHz is required within a standard 0603 footprint. The 100 mA current rating limits suitability for high-power applications; verify that the operating current remains below this threshold to prevent saturation. Consider the 1.5 Ohm DC resistance impact on voltage drop if used in sensitive power rails.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM18H series, which focuses on high-performance noise suppression for automotive and industrial electronics. The series offers various impedance values within the 0603 package, allowing designers to tailor filtering characteristics without altering the physical board layout constraints associated with larger packages.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include BLM18HD601SN1D and BLM18HD601SH1D, which share identical electrical parameters but may differ in packaging or reel specifications. Verify compatibility with existing assembly equipment when switching between these variants.

Chip Ferrite Bead FAQ

What is the test frequency for the specified 600 Ohm impedance?

The impedance value of 600 Ohms is measured at a test frequency of 100 MHz.

Is this component qualified for automotive applications?

Yes, the BLM18HD601SZ1D is AEC-Q200 qualified, indicating compliance with automotive electronic component standards.