Z0402C121BSMST

Overview

The KEMET Z0402C121BSMST is a ferrite chip bead in the Z-SMS series, housed in a 0402 (1005 metric) surface-mount package. It provides an impedance of 120 ohms at 100 MHz with a maximum DC resistance of 250 milliohms and a current rating of 300 mA. The component operates within a temperature range of -55°C to +125°C and features a 25% impedance tolerance.

Feature Summary

• Provides high-frequency noise suppression for signal lines
• Designed for compact surface-mount integration
• Offers stable performance across extended industrial temperature ranges

Applications

• High-frequency signal line filtering
• Noise suppression in compact electronic circuits
• EMI reduction in portable devices

Procurement Notes

Verify end-of-life status before procurement as the manufacturer indicates this part is obsolete and will be discontinued. Confirm final availability through authorized distributors and ensure replacement components are identified for long-term supply chain stability.

Selection Notes

Select this component for applications requiring specific 120-ohm impedance at 100 MHz within a 0402 footprint. Ensure the 300 mA current rating meets circuit requirements and verify compatibility with standard SMT reflow processes.

Part Context

This ferrite bead belongs to the KEMET Z-SMS series, designed for general-purpose noise suppression. It utilizes a monolithic ferrite structure optimized for high-frequency attenuation while maintaining low DC resistance to minimize power loss in sensitive signal paths.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.