CIM21J121NE

Chip Ferrite Bead Overview

The CIM21J121NE is a single-line ferrite bead from the Samsung Electro-Mechanics CIM21 series, housed in an 0805 (2012 metric) surface-mount package. It provides an impedance of 120 Ohms at 100 MHz with a maximum DC resistance of 30 milliohms and a rated current of 4 Amperes. The component operates within a temperature range of -55°C to 125°C and measures 2.00mm x 1.25mm x 1.30mm.

Chip Ferrite Bead Feature Summary

• Provides electromagnetic interference suppression through high impedance characteristics at specific frequencies
• Designed for power line filtering applications with low DC resistance to minimize signal loss
• Constructed for surface-mount assembly in compact electronic designs

Chip Ferrite Bead Applications

• Power line noise filtering in portable devices
• Electromagnetic interference suppression in consumer electronics
• Signal integrity management in high-speed digital circuits

Chip Ferrite Bead Procurement Notes

This component is officially obsolete and no longer manufactured by Samsung Electro-Mechanics. Verification of availability requires checking distributor inventories for remaining stock or identifying parameter-equivalent substitutes. Confirm RoHS compliance and end-of-life documentation before integration into new designs.

Chip Ferrite Bead Selection Notes

Select this part only if legacy compatibility is required. For new designs, evaluate active alternatives with matching impedance curves and current ratings. Verify that substitute components meet the same thermal and mechanical specifications for the target application environment.

Chip Ferrite Bead Part Context

Part of the CIM21 series of chip beads designed for EMI suppression. Manufactured by Samsung Electro-Mechanics, these components are widely used in mobile and communication equipment. The series offers various impedance values and package sizes to suit different circuit requirements.

Chip Ferrite Bead Replacement Considerations

Fair-Rite Products Corp. 2512061217Y5 is listed as a parameter-equivalent substitute.