12103D105KAT2A

# Product Description The 12103D105KAT2A is a multilayer ceramic capacitor (MLCC) manufactured by AVX, a recognized producer of passive electronic components for demanding industrial and commercial applications. This capacitor belongs to the 1210 case size family, which measures 3.2mm by 2.5mm, making it suitable for compact circuit board layouts where space efficiency is important without sacrificing performance. Multilayer ceramic capacitors are fundamental building blocks in modern electronics, serving critical functions in filtering, decoupling, energy storage, and signal coupling applications across virtually every type of electronic equipment. The 1210 package represents a widely adopted standard size that balances component density with handling ease in both manual and automated assembly environments. The "D" designation in this part number indicates this capacitor operates in the Y5V dielectric class, a temperature-stable formulation commonly used in general-purpose industrial and consumer applications. Capacitors in this family are engineered to deliver reliable performance across standard operating temperature ranges typical for most industrial control systems, telecommunications equipment, power supplies, and automated machinery. Engineers typically specify AVX 1210 case multilayer ceramic capacitors when they need proven reliability, consistent electrical performance, and availability through established distribution channels. The 1210 package size offers distinct advantages for designers working with space-constrained PCBs while maintaining adequate capacitance values for filtering and decoupling functions in switching power supplies, audio systems, RF equipment, and precision instrumentation. AVX components are widely recognized in industrial settings for consistent quality and stable long-term availability, which reduces design obsolescence risk—an important consideration for equipment manufacturers with extended product lifecycles. The 1210 form factor integrates well into standard pick-and-place assembly equipment, reducing production complexity compared to larger case sizes. This capacitor would be specified by design engineers working on applications requiring a cost-effective, compact ceramic capacitor solution where the electrical characteristics of the Y5V class provide adequate performance margins. Common scenarios include general filtering in power distribution networks, decoupling between supply rails and integrated circuits, and blocking or coupling in analog signal paths. For engineers evaluating alternatives, the 1210 package offers better volumetric efficiency than smaller case sizes when moderate capacitance values are needed, while remaining more practical for high-volume assembly than larger packages. This size-to-performance ratio makes it a standard choice in industrial electronics design and manufacturing environments.