BLM18EG121SH1D

Chip Ferrite Bead Overview

The BLM18EG121SH1D is a single-line ferrite chip bead manufactured by Murata Electronics. It features an impedance of 120 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 2 A and has a maximum DC resistance of 40 mOhms. It utilizes a surface-mount package in the 0603 (1608 metric) dimension, measuring 1.6 mm in length, 0.8 mm in width, and 0.8 mm in height. The device operates within a temperature range of -40°C to +125°C.

Chip Ferrite Bead Feature Summary

• Provides high-impedance noise suppression for high-current applications up to 2 A
• Designed for surface-mount integration in compact electronic circuits
• Constructed from ferrite material for effective electromagnetic interference filtering

Chip Ferrite Bead Applications

• Noise suppression on power supply lines
• Signal line filtering in consumer electronics
• Electromagnetic interference mitigation in automotive systems

Chip Ferrite Bead Procurement Notes

Verify the specific datasheet version and manufacturer documentation to confirm electrical characteristics and physical dimensions. Ensure that the selected component meets the required thermal operating range and current handling specifications for the intended circuit design before finalizing procurement.

Chip Ferrite Bead Selection Notes

Select this component when a low-resistance ferrite bead capable of handling 2 A is required for EMI suppression. The 0603 footprint suits space-constrained designs, while the 120 Ohm impedance provides targeted attenuation at 100 MHz for digital signal integrity.

Chip Ferrite Bead Part Context

This part belongs to the BLM18 series of ferrite beads from Murata Electronics. The series offers various impedance values and current ratings within the 0603 package format, allowing designers to choose components based on specific noise profiles and power requirements across different electronic applications.

Chip Ferrite Bead Replacement Considerations

Compatible substitutes include the BLM18PG121SN1D and BLM18AG121SH1D, which share similar impedance and package dimensions but may differ in current rating or manufacturing specifications.