KNF21025-W3

Overview

The KNF21025-W3 is a low-pass EMI/RFI filter manufactured by KYOCERA AVX, designed for data line protection in mobile devices. It operates within a frequency range of 200 MHz to 600 MHz with an attenuation of 20 dB. The component features a rated voltage of 25V and handles a current of 150 mA. It utilizes a 0805 (2012 Metric) surface-mount package with a capacitance value of 235pF. The operating temperature range spans from -25°C to 85°C.

Feature Summary

• Provides effective EMI/RFI suppression for high-speed data lines
• Compact 0805 surface-mount form factor suitable for space-constrained designs
• Engineered specifically for mobile device applications

Applications

• Data lines in mobile devices
• EMI filtering for high-speed digital circuits
• Signal integrity protection in portable electronics

Procurement Notes

Verify the specific datasheet version when sourcing, as manufacturer specifications may be updated. Confirm that the 0805 footprint matches your PCB design requirements. Ensure the 25V rating and 150 mA current handling are sufficient for your target circuit environment before finalizing procurement decisions.

Selection Notes

Select this component when designing for mobile device data lines requiring compact EMI filtering. The 0805 package offers a balance between performance and board space efficiency. Consider the 200-600 MHz frequency range and 20 dB attenuation to ensure compatibility with your signal frequencies and noise suppression needs.

Part Context

This part belongs to the KNF series of EMI/RFI filters from KYOCERA AVX. These components are engineered to suppress electromagnetic interference in sensitive electronic circuits. The series is widely used in consumer electronics and mobile communications where space is limited and signal integrity is critical.

Replacement Considerations

Check for equivalent low-pass filters in the 0805 package with similar capacitance and attenuation characteristics. Verify that any substitute meets the same voltage and current ratings. Ensure the replacement component supports the required operating temperature range for your application.