BLM18BB141SN1D

Chip Ferrite Bead Overview

The BLM18BB141SN1D is a single-line ferrite chip bead from the Murata EMIFIL BLM18 series, housed in a 0603 (1608 metric) surface-mount package. It provides an impedance of 140 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 450 mA and exhibits a maximum DC resistance of 350 mOhms. It operates within a temperature range of -55°C to +125°C and has physical dimensions of 1.6 mm length, 0.8 mm width, and 0.8 mm height.

Chip Ferrite Bead Feature Summary

• Multilayer ceramic construction for high-frequency noise suppression
• Compact 0603 surface-mount footprint for space-constrained designs
• Single-line configuration for signal line filtering applications

Chip Ferrite Bead Applications

• High-speed data line noise suppression
• Clock circuit interference reduction
• Power supply input filtering for sensitive ICs

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SN1D against the official Murata datasheet to confirm packaging and tape specifications. Ensure the selected variant matches the required impedance tolerance and current rating for the target application. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm authenticity and RoHS compliance status before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when a 140 Ohm impedance at 100 MHz is required for single-line noise attenuation. The 450 mA current rating suits low-power signal lines rather than high-current power rails. The 0603 package size offers a balance between thermal performance and board space efficiency compared to smaller footprints.

Chip Ferrite Bead Part Context

This component belongs to the Murata BLM18 family of multilayer ferrite beads, designed for EMI suppression in digital circuits. The BLM18 series utilizes specialized ferrite materials optimized for high-frequency absorption. The BB designation typically indicates specific material characteristics within the broader BLM18 product line.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include other 0603 ferrite beads with similar 140 Ohm impedance and 450 mA ratings, such as the BLM18PG221SN1D if higher current capacity is acceptable despite impedance differences.