Z0402C121ASMST

Overview

The KEMET Z0402C121ASMST is a single-line ferrite chip bead designed for surface-mount technology in the 0402 (1005 metric) package. It provides an impedance of 120 Ohms at 100 MHz with a maximum DC resistance of 230 milliohms and a rated current of 500 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 through significant impedance at 100 MHz
• Compact 0402 footprint suitable for dense surface-mount layouts
• Low DC resistance minimizes voltage drop across signal lines

Applications

• High-speed digital signal line filtering
• Power supply input/output decoupling
• EMI suppression in compact electronic modules

Procurement Notes

Verify the specific suffix ASMST against official KEMET documentation to confirm exact electrical ratings, as variations exist within the Z0402C series. Confirm RoHS compliance status and check for End-of-Life notices prior to finalizing procurement plans.

Selection Notes

Select this component when a 120 Ohm impedance at 100 MHz is required for a single-line application. Ensure the 500 mA current rating meets circuit requirements and that the 0402 package dimensions fit the board space constraints.

Part Context

This part belongs to the KEMET Z-series ferrite beads, which are passive components used for electromagnetic interference suppression. The Z0402C designation indicates the 0402 case size and general series characteristics.

Replacement Considerations

Consult KEMET's official cross-reference tools or datasheets for verified substitutes. Generic equivalents may not match the specific 120 Ohm @ 100 MHz impedance curve or thermal performance.