BLM03HD182FN1D

Chip Ferrite Bead Overview

The BLM03HD182FN1D is a single-line ferrite bead chip manufactured by Murata Electronics, designed for high-density surface-mount applications. It features an impedance of 1.8 kOhms at 100 MHz with a maximum DC resistance of 3.8 Ohms and a current rating of 100 mA. The component utilizes a 0201 (0603 metric) package measuring 0.60 mm in length, 0.30 mm in width, and 0.33 mm in height. It operates within a temperature range of -55°C to +125°C and meets RoHS3 standards.

Chip Ferrite Bead Feature Summary

• Provides effective electromagnetic interference suppression through high impedance characteristics at target frequencies.
• Supports compact circuit board layouts via the ultra-small 0201 surface-mount footprint.
• Maintains signal integrity while limiting noise currents up to the rated maximum DC current.

Chip Ferrite Bead Applications

• High-speed data line noise filtering
• Power supply input/output decoupling
• Clock signal noise suppression

Chip Ferrite Bead Procurement Notes

Verify the complete part number including suffixes to ensure correct impedance tolerance and packaging configuration. Confirm that the selected variant matches the required DC resistance and current handling capabilities for the specific circuit design. Cross-reference official Murata documentation to validate compliance with environmental regulations such as RoHS3 before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when space constraints necessitate a 0201 package size while requiring significant attenuation at 100 MHz. Ensure the circuit's operating current remains below the 100 mA limit to prevent saturation. Consider the 3.8 Ohm DC resistance impact on voltage drop if used in low-voltage power rails. Verify thermal performance requirements against the specified operating temperature range.

Chip Ferrite Bead Part Context

This component belongs to the Murata BLM series of ferrite beads, specifically the HD sub-series optimized for high-performance applications. The BLM03H__N designation indicates the 0201 form factor family. These chips are engineered to suppress electromagnetic interference in portable electronic devices and automotive electronics where minimal physical footprint is critical.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include other 0201 ferrite beads with 1.8 kOhm impedance at 100 MHz, such as the BLM03BX182SN1D or BLM03HD601SN1D if lower impedance is acceptable. Verify that alternative parts match the 100 mA current rating and 3.8 Ohm maximum DC resistance to maintain circuit performance equivalence.

Chip Ferrite Bead FAQ

What is the impedance tolerance for the BLM03HD182FN1D?

The impedance tolerance is ±25%.

Does this component support automotive applications?

Yes, the BLM03HD series is qualified under AEC-Q200 standards for automotive use.