Z0603C431ESMST

Overview

The KEMET Z0603C431ESMST is a surface-mount ferrite bead from the Z-SMS series, designed for signal line noise suppression. It features a 0603 (1608 metric) package with an impedance of 430 ohms at 100 MHz. The component supports a maximum DC current rating of 400 mA and exhibits a maximum DC resistance of 300 milliohms. It operates within a temperature range of -55°C to +125°C and complies with RoHS3 standards.

Feature Summary

• Provides effective high-frequency noise attenuation on signal lines through magnetic dissipation.
• Utilizes a compact 0603 surface-mount footprint suitable for space-constrained PCB layouts.
• Maintains low DC resistance to minimize voltage drop and power loss in the circuit path.

Applications

• High-speed digital signal line filtering
• Clock circuit noise suppression
• Data bus interference mitigation

Procurement Notes

Verify the specific impedance tolerance and DC resistance values against the official manufacturer datasheet prior to procurement, as variations may exist between production batches or regional specifications. Confirm that the 400 mA current rating aligns with the operational requirements of the target application to ensure reliable performance under load conditions.

Selection Notes

Select this component when high impedance at specific frequencies is required for signal integrity rather than power rail filtering. Ensure the operating current remains below the 400 mA limit to prevent saturation. The 0603 package size offers a balance between thermal performance and board real estate efficiency for general-purpose EMI suppression tasks.

Part Context

This ferrite bead belongs to KEMET's Z-SMS series, which focuses on small-form-factor components for consumer and industrial electronics. The series emphasizes consistent electrical characteristics across the supply chain, supporting mass production needs for devices requiring reliable electromagnetic interference control in compact designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative suppliers by matching impedance curves, current ratings, and package dimensions before substitution.