12103C155KAT2A

The 12103C155KAT2A is a multilayer ceramic capacitor (MLCC) manufactured by AVX, a recognized producer of passive electronic components for demanding applications. This capacitor belongs to the 1210 package family, a common surface-mount format measuring 3.2mm by 2.5mm, making it suitable for compact circuit board designs while maintaining robust performance characteristics. Multilayer ceramic capacitors are fundamental passive components used across virtually all electronic equipment to store electrical energy, filter signals, couple or decouple circuits, and stabilize power supplies. The 1210 package size represents a popular mid-range option that balances capacitance value density with ease of assembly and thermal management on modern PCBs. This particular part number suggests a capacitor designed for general-purpose industrial and commercial applications rather than specialized high-reliability or extreme-environment use cases. AVX's capacitor offerings in the 1210 format typically serve applications including power supply filtering, signal conditioning circuits, audio equipment, telecommunications infrastructure, industrial control systems, and consumer electronics. Engineers commonly specify MLCCs from established manufacturers like AVX when they require proven reliability, consistent electrical performance, and broad availability across supply chains. The 1210 case size specifically appeals to designs where moderate capacitance values are needed without consuming excessive board real estate, yet larger than smaller packages like 0805 or 0603. The ceramic dielectric technology used in MLCCs offers stable performance across temperature ranges typical for industrial environments, though the exact temperature stability class would depend on the specific dielectric formulation. AVX manufactures capacitors across various performance tiers, from standard commodity grades suitable for non-critical applications to specialized versions designed for automotive, aerospace, or medical equipment where higher reliability and tighter tolerances are mandated. Engineers might select this specific part when replacing existing components in legacy designs, maintaining consistency with proven bill-of-materials specifications, or when AVX's particular manufacturing quality and supply reliability align with project requirements. The established 1210 package ensures compatibility with standard PCB assembly equipment and design practices, reducing manufacturing complexity and potential compatibility issues compared to less common formats. For precise electrical characteristics including capacitance value, voltage rating, tolerance, and temperature coefficient, consulting the manufacturer's datasheet is essential for proper circuit design and compliance with system requirements. This component represents the type of foundational passive element that engineers must carefully specify to ensure circuit performance, longevity, and regulatory compliance in industrial and commercial equipment.