12103A821FAT2A

The 12103A821FAT2A is a multilayer ceramic capacitor (MLCC) manufactured by AVX, a recognized producer of passive electronic components for demanding industrial and commercial applications. This component belongs to the 1210 chip capacitor family, denoting its physical dimensions in the standard imperial measurement format (0.12 inches by 0.10 inches), making it a mid-sized surface-mount capacitor suitable for modern PCB assembly processes. Multilayer ceramic capacitors like this part are fundamental building blocks in electronic circuits, used primarily for energy storage, filtering, decoupling, and signal coupling applications. The 1210 package size offers a balance between compact form factor and adequate capacitance density, making it particularly valuable in space-constrained applications where engineers need reliable performance without sacrificing board real estate. This component is commonly specified in industrial control systems, telecommunications equipment, power distribution modules, automotive electronics, and consumer electronics requiring stable capacitive performance across operational environments. The ceramic dielectric material provides excellent frequency response characteristics and low equivalent series resistance (ESR), which are critical for high-speed digital circuits and power supply filtering where noise reduction and signal integrity matter. The "A" designation in the part number typically indicates the specific dielectric material composition, which influences the capacitor's voltage rating, temperature stability, and capacitance characteristics. AVX's MLCC series are engineered to meet the stringent reliability requirements of industrial applications, with components designed to maintain performance across extended temperature ranges and under various stress conditions. Engineers select this exact part number when seeking a proven, mid-sized ceramic capacitor with AVX's manufacturing quality and traceability. Compared to alternatives, the 1210 format provides superior performance-to-size ratio compared to smaller packages, while remaining more cost-effective and easier to hand-place during prototype work than larger formats. This makes it particularly popular for both high-volume production and specialized industrial applications where component reliability and consistency are non-negotiable. The surface-mount design enables automated assembly, reducing manufacturing costs and improving production consistency. AVX's reputation for consistent quality and availability across global distribution channels makes this component a reliable choice for OEMs and contract manufacturers who need components that meet strict specifications and delivery schedules without design surprises or performance anomalies.