BLM18BB331SN1D

Chip Ferrite Bead Overview

The Murata BLM18BB331SN1D is a single-line ferrite bead in the EMIFIL BLM18BB series, housed in a 0603 (1608 metric) surface-mount package. It provides an impedance of 330 Ohms at 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 400 mA and features a maximum DC resistance of 580 mOhms. Operating temperatures range from -55°C to +125°C. Physical dimensions are 1.6 mm in length, 0.8 mm in width, and a maximum height of 0.95 mm.

Chip Ferrite Bead Feature Summary

• Provides high-frequency noise suppression for signal lines through ferrite material properties
• Designed for surface-mount assembly in compact electronic circuits
• Complies with RoHS3 standards for environmental safety

Chip Ferrite Bead Applications

• High-frequency noise suppression in signal lines
• EMI filtering in portable devices
• Noise reduction in digital circuitry

Chip Ferrite Bead Procurement Notes

Verify the specific part number against official Murata documentation to confirm impedance values and physical dimensions. Ensure compatibility with existing PCB footprints and thermal requirements. Check for RoHS3 compliance status if required by project specifications. Confirm availability through authorized distributors to avoid counterfeit components.

Chip Ferrite Bead Selection Notes

Select this component when a 330 Ohm impedance at 100 MHz is required for noise attenuation in space-constrained designs. The 0603 package suits applications needing small form factors. Consider the 400 mA current rating to ensure the component does not saturate under operating conditions. Verify that the 580 mOhm DC resistance meets power loss constraints in the target circuit.

Chip Ferrite Bead Part Context

This component belongs to the Murata EMIFIL BLM18BB series of chip ferrite beads. The series offers various impedance options within the same 0603 footprint, allowing designers to tailor noise suppression characteristics without changing the board layout. These beads are widely used in consumer electronics and industrial equipment for EMI control.

Chip Ferrite Bead FAQ

What is the impedance value of the BLM18BB331SN1D at 100 MHz?

The impedance is 330 Ohms at 100 MHz.

What is the maximum DC current rating for this ferrite bead?

The maximum DC current rating is 400 mA.