KNH21C473DA3T

Overview

The KNH21C473DA3T is a multilayer ceramic capacitor manufactured by KYOCERA AVX. It features a capacitance of 0.047 µF with a tolerance of ±0.5 pF and a rated voltage of 50 V DC. The component utilizes X7R dielectric material, providing stable performance across a temperature range of -55°C to +125°C. It is housed in a compact 0805 (2012 Metric) surface-mount package, designed for high reliability in electronic circuits requiring precise capacitance values.

Feature Summary

• High stability X7R dielectric ensures consistent capacitance over varying temperatures
• Ultra-tight tolerance of ±0.5 pF allows for precise circuit tuning
• Compact 0805 footprint supports dense board layouts

Applications

• Precision timing circuits
• High-frequency decoupling applications
• RF filtering networks

Procurement Notes

Verify the specific suffix 'A3T' against official KYOCERA AVX documentation to confirm tape-and-reel packaging specifications and lead-free status. Ensure the X7R temperature coefficient aligns with your thermal operating requirements. Cross-reference the 0805 package dimensions with your PCB footprint design to guarantee mechanical compatibility during assembly.

Selection Notes

Select this component when tight capacitance tolerance is critical for signal integrity or timing accuracy. The X7R dielectric offers a balance between cost and performance for general-purpose applications. Consider the 50V rating to ensure adequate voltage headroom in your power supply rails. Evaluate the 0805 size against available board space constraints.

Part Context

This part belongs to KYOCERA AVX's KNH series of high-reliability ceramic capacitors. The series is engineered for demanding environments where long-term stability and low failure rates are essential. The KNH line typically serves industries such as telecommunications and industrial control systems.

Replacement Considerations

Check for direct substitutes from KYOCERA AVX with identical 0805 dimensions and X7R characteristics. Verify that alternative parts maintain the ±0.5 pF tolerance, as standard 10% or 5% tolerances may not suffice for precision applications. Confirm voltage ratings and temperature coefficients match the original specification.