KNH21471-3AA

Overview

The KNH21471-3AA is a three-terminal feed-through capacitor from the KYOCERA AVX KNH21 series, designed for EMI noise filtering. It features a rated voltage of 1 A and operates within a temperature range of -40°C to +85°C. The component utilizes a ground pin with a diameter of 0.4 mm for effective shielding. Manufactured in a compact form factor suitable for surface mount applications, it serves as an efficient electromagnetic interference filter for high-frequency signal lines.

Feature Summary

• Three-terminal feed-through architecture for enhanced EMI suppression
• Integrated ground pin for direct chassis or shield connection
• Rated for 1 A current handling capability
• Compact surface-mount design for space-constrained layouts

Applications

• High-speed data line filtering
• RF signal path noise reduction
• Industrial equipment EMI mitigation
• Automotive electronic signal conditioning

Procurement Notes

Verify the exact electrical parameters and mechanical dimensions against the official manufacturer datasheet before integration. Confirm availability status as distribution channels may vary. Ensure compatibility with existing PCB footprint requirements and soldering profiles. Cross-reference part numbers to avoid confusion with similar series components.

Selection Notes

Select this component when high-current filtering is required on signal lines. The three-terminal design offers superior high-frequency performance compared to standard two-terminal capacitors. Consider the physical size constraints and the need for a dedicated ground connection point during PCB layout planning.

Part Context

This component belongs to the KNH21 series of feed-through capacitors, which are specialized filters combining capacitance with low-inductance construction. These parts are engineered for applications requiring robust noise suppression in sensitive electronic circuits, particularly where signal integrity is critical.

Replacement Considerations

Consult official substitution lists for equivalent three-terminal feed-through capacitors. Verify that any alternative part matches the 1 A rating and operating temperature range. Ensure mechanical compatibility with the existing ground pin configuration.