Z0603C121ESMST

Overview

The KEMET Z0603C121ESMST is a surface-mount ferrite bead from the Z-SMS series, designed for noise suppression in electronic circuits. It features an impedance of 120 ohms at 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 300 mA and has a maximum DC resistance of 250 milliohms. It operates within a temperature range of -55°C to +125°C and utilizes a 0402 (1005 metric) package size.

Feature Summary

• Provides effective high-frequency noise attenuation for signal lines
• Compact surface-mount design suitable for space-constrained PCB layouts
• Stable performance across a wide industrial temperature range

Applications

• High-speed data line filtering
• Power supply noise suppression
• RF circuit interference reduction

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm final purchase orders directly with KEMET or certified distributors as availability may be limited. Ensure specifications match design requirements before procurement to avoid obsolescence risks associated with discontinued parts.

Selection Notes

Select this component when a 120-ohm impedance at 100 MHz is required for EMI suppression in compact designs. Consider the 300 mA current rating and 250 milliohm DCR for power handling needs. Evaluate alternative packages if larger footprints are permissible, but note that this specific model is designated for 0402 mounting.

Part Context

This ferrite bead belongs to KEMET's Z-SMS series, which focuses on miniaturized noise suppression solutions. The series offers various impedance values and current ratings tailored for modern electronics. As a Class 1 component variant, it provides consistent electrical characteristics essential for reliable signal integrity management in dense circuit boards.

Replacement Considerations

Public confirmed substitute part numbers: Z0603C600ASMST.