Z1812C681BPWZT

Overview

The KEMET Z1812C681BPWZT is a high-current ferrite chip bead in the Z-PWZ series, housed in an 0603 (1608 metric) surface-mount package. It provides 680 Ohms impedance at 100 MHz with a maximum DC current rating of 4 Amperes and a maximum DC resistance of 170 mOhms. The component operates within a temperature range of -40°C to +125°C and features a 25% impedance tolerance.

Feature Summary

• Engineered for high ripple current capacity in power line applications
• Provides effective noise suppression through high impedance characteristics
• Features low DC resistance to minimize signal loss

Applications

• Power line noise suppression
• High current circuit filtering
• EMI/RFI suppression in compact designs

Procurement Notes

Verify the specific datasheet version and manufacturer specifications before integration. Confirm that the 0603 package dimensions and thermal ratings align with your PCB layout constraints. Ensure the 4A current rating meets your application's peak load requirements without exceeding the component's limits.

Selection Notes

Select this component when space is limited to an 0603 footprint but high current handling is required. Compare its 680 Ohm impedance profile against other ferrite beads to ensure adequate attenuation at the target frequency. Evaluate the trade-off between its low DC resistance and impedance performance for your specific power rail.

Part Context

This part belongs to the KEMET Z-PWZ series of ferrite chip beads, designed specifically for high-current environments. Unlike standard signal-line ferrites, this series prioritizes high ripple current capacity while maintaining effective noise suppression capabilities in a compact surface-mount form factor.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative high-current ferrite beads by matching impedance curves, current ratings, and physical dimensions.