Z0805C431ASMST

Overview

The KEMET Z0805C431ASMST is a multilayer ferrite chip bead from the Z-SMS series, designed for surface-mount applications in the 0805 (2012 metric) package. It provides an impedance of 430 ohms at a test frequency of 100 MHz with a tolerance of ±25%. The component supports a maximum DC current of 500 mA and features a maximum DC resistance of 0.25 ohms. It operates within a temperature range of -55°C to +125°C and has physical dimensions of 2 mm length, 1.25 mm width, and 0.85 mm height.

Feature Summary

• Multilayer construction for high-frequency noise suppression
• Surface-mount design compatible with standard SMD/SMT processes
• High current handling capability relative to impedance level

Applications

• Signal line filtering
• Power supply noise attenuation
• EMI suppression in compact electronic circuits

Procurement Notes

Verify availability status as this component may be subject to end-of-life or limited supply conditions. Confirm RoHS compliance details through official manufacturer documentation before integration. Ensure ordering suffixes match exact specifications, as variations can affect performance characteristics. Cross-reference datasheets for updated testing frequencies and electrical tolerances.

Selection Notes

Select this component when specific high-impedance noise filtering is required in space-constrained designs. The 0805 footprint allows for dense PCB layouts while maintaining adequate current capacity. Consider the 430-ohm impedance value for target frequency attenuation profiles. Evaluate thermal management requirements given the 125°C maximum operating temperature limit.

Part Context

This part belongs to KEMET's Z-SMS series of ferrite beads, which are engineered for general-purpose EMI suppression. The series offers various impedance and current ratings within standardized packages. Ferrite beads function by dissipating high-frequency energy as heat, providing effective noise reduction without introducing significant signal distortion in low-frequency paths.

Replacement Considerations

Direct substitutes include other 0805 ferrite beads with similar 430-ohm impedance and 500mA current ratings. Verify package dimensions and terminal configurations match existing footprints. Check equivalent impedance curves at target frequencies to ensure comparable filtering performance.