1808AA221KAT1A

The AVX 1808AA221KAT1A is a multilayer ceramic capacitor (MLCC) designed for general-purpose filtering, coupling, and decoupling applications in electronic circuits. This component belongs to AVX's established 1808 package family, which represents a widely recognized footprint in the surface-mount capacitor market. The 1808 designation indicates a physically compact package measuring 4.5mm x 3.2mm, making it suitable for space-constrained modern PCB designs while maintaining reasonable capacitance density. This size represents a practical middle ground between smaller packages like 0603 and larger alternatives, offering engineers flexibility in circuit layout without requiring extensive board real estate. Multilayer ceramic capacitors of this type are fundamental building blocks in countless industrial and consumer electronics applications. They are commonly specified in power supply circuits for bulk energy storage and output filtering, in digital logic circuits for decoupling supply rails near integrated circuits, and in analog signal paths where AC coupling or high-frequency filtering is required. The robustness and reliability of MLCC technology make these components particularly valuable in demanding industrial environments where performance consistency matters. The specific part number designation suggests this capacitor is configured for standard operating conditions typical of general industrial electronics. Engineers frequently select MLCCs from AVX's 1808 series because of the manufacturer's reputation for consistent quality, wide availability through established distribution channels, and proven long-term reliability in field applications. AVX's manufacturing processes and quality standards are well-known within the engineering community. When comparing alternatives, an engineer might choose the 1808AA221KAT1A specifically based on several factors: compatibility with existing board layouts already designed around the 1808 footprint, preference for AVX as an established manufacturer with strong supply chain presence, or requirements that align precisely with this part's performance class. For applications involving temperature cycling, mechanical stress, or strict reliability requirements, the specific dielectric formulation and construction methods used in this series can be important differentiators. This capacitor would typically be incorporated into designs requiring moderate capacitance values in standard voltage ranges. Its multilayer construction provides stable performance across typical industrial temperature operating windows, and the ceramic dielectric offers good frequency response characteristics important for modern switching power supplies and high-speed digital circuits. Whether specified for military-grade equipment, telecommunications infrastructure, industrial automation, or consumer electronics, the 1808 package MLCC remains a foundational component in electronic design, and AVX's version represents a reliable, widely-accepted choice within this established category.