BLM18BA050SZ1D

Chip Ferrite Bead Overview

The Murata BLM18BA050SZ1D is a single-line ferrite chip bead in the BLM18BA 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 5 Ohms at a test frequency of 100 MHz with a tolerance of 25%. It supports a maximum DC current of 500 mA and has a maximum DC resistance of 200 mOhms. The device 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.
• Engineered for surface-mount assembly using standard SMD/SMT termination types.
• Constructed as a single-line filter suitable for signal line noise reduction applications.

Chip Ferrite Bead Applications

• Signal line noise filtering in electronic circuits
• EMI suppression for high-speed digital signals
• Noise reduction in portable communication devices

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'SZ1D' against official Murata documentation to confirm material composition and packaging details, as suffixes define critical handling and storage requirements. Ensure compatibility with AEC-Q200 qualification if automotive reliability is required, noting that some variants may differ. Confirm moisture sensitivity level and reflow soldering profiles prior to integration into the manufacturing process.

Chip Ferrite Bead Selection Notes

Select this component when a low-impedance path is needed for signal integrity while attenuating high-frequency noise. The 5 Ohm rating suits lines requiring minimal insertion loss at DC. Compare against the BLM18BB series for higher current capabilities or different impedance needs. Ensure the 0603 footprint aligns with the PCB layout constraints and thermal management requirements of the design.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM18BA series of ferrite beads. These components are widely used in consumer electronics and industrial equipment for EMI control. The BLM18BA series offers various impedance values in a compact 0603 package, balancing performance with space efficiency. It serves as a passive filter element in power and signal distribution networks.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include other BLM18BA series parts with identical impedance and current ratings, such as BLM18BA050SN1D or BLM18BA050SH1D, provided the suffix differences in packaging or material do not impact the application. Verify pinout and electrical parameters match exactly before substitution.