BLM18BD471SH1D

Chip Ferrite Bead Overview

The Murata Electronics BLM18BD471SH1D is a single ferrite bead chip filter in the EMIFIL® BLM18 series. It provides an impedance of 470 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component operates within a temperature range of -55°C to +125°C and supports a maximum DC current of 250 mA. Its maximum DC resistance is 550 mOhms. The device utilizes SMD/SMT end termination types and is housed in a 0603 (1608 metric) package measuring 1.6 mm in length, 0.8 mm in width, and 0.8 mm in height. It holds AEC-Q200 qualification.

Chip Ferrite Bead Feature Summary

• Functions as a resistor at noise frequencies to reduce resonance possibilities
• Leaves signal waveforms undistorted during operation
• Designed for differential mode noise suppression

Chip Ferrite Bead Applications

• Noise suppression in electronic circuits
• Signal integrity protection in high-frequency applications
• Automotive electronics systems requiring AEC-Q200 qualification

Chip Ferrite Bead Procurement Notes

Verify the specific ordering suffix against official documentation to ensure correct impedance and tolerance specifications. Confirm that the selected variant matches the required package dimensions and thermal characteristics for the target application environment. Cross-reference the manufacturer's latest datasheet to validate compliance with RoHS directives and AEC-Q200 automotive standards before finalizing procurement decisions.

Chip Ferrite Bead Selection Notes

Select this component when a 470 Ohm impedance at 100 MHz is required for noise filtering in space-constrained designs. The 0603 footprint allows for compact PCB layouts while maintaining adequate current handling capabilities up to 250 mA. Consider the low DC resistance to minimize voltage drop across the component in power supply lines or sensitive signal paths where signal distortion must be avoided.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL® BLM18 series of ferrite beads. The series is engineered to provide effective electromagnetic interference suppression in small surface-mount packages. The BLM18BD471SH1D specifically targets applications requiring reliable noise reduction in automotive and industrial environments, leveraging the company's expertise in passive component manufacturing.

Chip Ferrite Bead Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.