1808SA120KAT1A

The 1808SA120KAT1A is a surface-mount multilayer ceramic capacitor (MLCC) manufactured by AVX, a recognized producer of passive electronic components for industrial applications. This component belongs to the 1808 package family, which represents a physically compact form factor widely used in space-constrained electronic assemblies where reliable performance is essential. Multilayer ceramic capacitors like this part serve as energy storage and filtering elements in countless electronic circuits. They are fundamental building blocks in power supplies, signal conditioning circuits, audio equipment, telecommunications infrastructure, and industrial control systems. Engineers specify MLCCs in bypass and decoupling applications to suppress high-frequency noise, in timing circuits, and as part of filter networks where stable capacitance is required over operational temperature ranges. The "SA" designation within the part number indicates this capacitor belongs to AVX's 1808 standard-case family, positioned for general-purpose industrial and commercial use. The 1808 package—measuring 1.8mm × 0.8mm in typical dimensions—offers a practical balance between compact size and handling ease during automated assembly. This makes it suitable for high-density PCB designs where space is at a premium, yet the component remains large enough for reliable wave soldering or reflow soldering processes without specialized handling. The "120K" portion of the part number indicates the capacitive value in picofarads, suggesting this is a relatively low-capacitance component suited for high-frequency applications, decoupling circuits, or precision filtering where larger values would be inappropriate. The trailing characters typically reference voltage rating, packaging configuration, and temperature characteristics specific to AVX's classification system. Engineers select this exact part number when they require a compact, reliable MLCC with the specific capacitance value and electrical characteristics that AVX's 1808SA series provides. Consistency across production runs, proven performance in harsh industrial environments, and compatibility with standard PCB assembly processes make this a practical specification choice. The AVX brand carries established credibility in aerospace, defense, medical, and automotive sectors, which influences selection when component reliability directly impacts system performance or safety. For designers working with tight spatial constraints—such as compact power converters, telecommunications equipment, or high-density control boards—the 1808 package format represents an optimal choice between miniaturization and manufacturability. This component would typically be used alongside other passives and semiconductors in filtering networks, bias circuits, or AC coupling applications where its specific capacitance value and package size align with circuit requirements.