Z0805C221BPWZT

Overview

The KEMET Z0805C221BPWZT is a surface-mount ferrite bead designed for high-frequency noise suppression in electronic circuits. It features an impedance of 78.5 ohms at 25 MHz and 220 ohms at 100 MHz, housed in a compact 0805 (2012 metric) package. The component supports a maximum DC current of 344 mA with a low DC resistance of 0.033 ohms, ensuring minimal signal attenuation while effectively attenuating electromagnetic interference across specified frequency bands.

Feature Summary

• Provides effective high-frequency noise attenuation with defined impedance characteristics at 25 MHz and 100 MHz
• Engineered for low power loss through minimal DC resistance in a standard surface-mount footprint
• Capable of handling continuous DC currents up to 344 mA without saturation

Applications

• Signal line filtering in portable consumer electronics
• Power supply noise suppression on data buses
• EMI reduction in high-speed digital circuit interfaces

Procurement Notes

Verify the specific impedance tolerance and DC current ratings against the official KEMET datasheet before integration. Confirm that the 0805 package dimensions align with the target PCB layout constraints. Ensure the operating temperature range meets the environmental requirements of the final assembly. Cross-reference the manufacturer part number to avoid confusion with similar series components.

Selection Notes

Select this component when moderate current handling is required alongside significant high-frequency noise reduction. The 0805 form factor offers a balance between current capacity and board space efficiency compared to smaller packages. Consider the specific impedance curve at the target noise frequency rather than just the peak value to ensure adequate attenuation performance for the application.

Part Context

This ferrite bead belongs to KEMET's Z-series of chip beads, which are optimized for general-purpose EMI suppression. The Z-series utilizes specialized ferrite materials to provide stable impedance characteristics over a wide frequency range. These components are widely used in commercial and industrial applications where reliable noise filtering is critical for signal integrity.

Replacement Considerations

Consult the official KEMET substitution guide for verified equivalents. Ensure any replacement maintains the same 0805 footprint, impedance profile, and current rating. Verify that alternative components meet the same thermal and electrical specifications.