KNH21473-3AA

Overview

The KNH21473-3AA is a three-terminal feed-through capacitor from the KYOCERA AVX KNH21 series, designed for EMI noise filtering. It features a capacitance of 0.047 µF with a channel resistance of 0.02 Ohms and a rated current of 2 A. The component operates within a temperature range of -25°C to +85°C and does not provide ESD protection. It utilizes an SMD/SMT termination type and is classified as a multilayer ceramic capacitor (MLCC) for high-frequency noise suppression applications.

Feature Summary

• Three-terminal feed-through architecture for effective EMI/RFI noise filtering
• Low internal channel resistance of 0.02 Ohms for minimal signal loss
• Rated for 2 A continuous current handling capability
• Multilayer ceramic construction optimized for surface mount technology

Applications

• High-frequency noise suppression in electronic circuits
• EMI filtering for power and signal lines
• RFI mitigation in compact electronic assemblies

Procurement Notes

Verify the specific suffix and manufacturer documentation to confirm exact electrical tolerances and package dimensions. Ensure compatibility with the target operating temperature range of -25°C to +85°C. Confirm that the 2 A current rating meets the circuit requirements. Check for any end-of-life or obsolescence notices from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when low-profile EMI filtering is required for signals carrying up to 2 A. The three-terminal design offers superior high-frequency performance compared to standard two-terminal capacitors. Consider the 0.02 Ohm resistance impact on voltage drop in high-current paths. Ensure the PCB layout supports the specific footprint and grounding requirements of three-terminal filter capacitors.

Part Context

This component belongs to the KNH21 series of feed-through capacitors by KYOCERA AVX. These parts are engineered specifically for suppressing electromagnetic interference in space-constrained environments. The series is characterized by its ability to handle significant current while maintaining effective noise filtration across a broad frequency spectrum.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data.