BLM18SP102SN1D

Chip Ferrite Bead Overview

The Murata BLM18SP102SN1D is a single-line ferrite chip bead in the EMIFIL BLM18S series, designed for high-current noise suppression. It features a 1608 metric (0603) surface-mount package with dimensions of 1.6 mm length, 0.8 mm width, and 0.8 mm height. The component provides an impedance of 1000 ohms at a test frequency of 100 MHz with a tolerance of ±25%. It supports a maximum DC current of 450 mA and has a maximum DC resistance of 500 milliohms. The operating temperature range spans from -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• High current handling capability suitable for power line applications
• Nickel barrier electrode structure ensures excellent soldering heat resistance
• Designed to minimize resonance probability for undistorted signal waveforms
• Requires no ground connection, enabling use in circuits without stable grounding

Chip Ferrite Bead Applications

• Noise suppression on high-current power lines
• Electromagnetic interference filtering in industrial equipment
• Signal integrity protection in portable electronic devices
• Power management circuitry in consumer electronics

Chip Ferrite Bead Procurement Notes

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

Chip Ferrite Bead Selection Notes

Select this component when the application requires significant current capacity alongside standard EMI suppression. The 450 mA rating distinguishes it from lower-current variants within the same footprint. Verify that the 1000 ohm impedance at 100 MHz aligns with the target noise frequency spectrum. Confirm that the 1608 package size fits the available PCB real estate constraints.

Chip Ferrite Bead Part Context

This component belongs to the Murata EMIFIL BLM18S series, which specializes in ferrite beads capable of handling higher direct currents compared to standard signal-line variants. The series utilizes multi-layer ceramic technology to provide compact noise suppression solutions. It is engineered for surface-mount assembly processes commonly used in modern electronics manufacturing.

Chip Ferrite Bead Replacement Considerations

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