1812CC393KAT1A

The 1812CC393KAT1A is a multilayer ceramic capacitor (MLCC) manufactured by AVX, one of the leading producers of passive electronic components. This capacitor is housed in a 1812 package size, which is a surface-mount format measuring 4.5mm by 3.2mm, making it suitable for high-density PCB applications where space optimization is important. Multilayer ceramic capacitors like this unit are fundamental passive components used across virtually every modern electronic device and system. They serve critical functions including energy storage, signal filtering, noise suppression, and decoupling in power distribution networks. The 1812 package size represents a mid-range option that balances capacitance value, voltage rating, and physical footprint—larger than smaller packages like 0805 but more compact than 1825 or 1206 variants. The "393" in the part number indicates the capacitance value, typically decoded using industry-standard three-digit notation. AVX's CC series represents their general-purpose multilayer ceramic capacitor line, engineered for reliable performance across commercial and industrial applications. These capacitors are designed for use in consumer electronics, telecommunications infrastructure, automotive systems, industrial control circuits, and medical devices where consistent performance and cost efficiency are required. Engineers typically specify this particular part number when the application demands a specific combination of capacitance value, voltage rating, and temperature stability that this component provides. The 1812 package format is frequently chosen for applications requiring moderate capacitance values where 0805 packages would be insufficient but where the larger 1825 package would be unnecessary or would create assembly challenges on space-constrained boards. AVX's ceramic capacitors are known for reliable performance under standard operating conditions, with designs that minimize issues such as microphonics and voltage derating. The specific dielectric material and construction method used in this component influence its frequency response, temperature coefficient, and aging characteristics—factors that make particular part numbers suitable for specific circuit roles. When designing filtering networks, bypass circuits, or coupling/decoupling functions in audio amplifiers, power supplies, signal processors, and digital logic circuits, engineers select specific MLCC part numbers based on precise impedance requirements and frequency response needs. The 1812CC393KAT1A would be specified when its particular combination of electrical characteristics and package dimensions matches these design requirements better than alternative capacitor options.