1206CC391KAT1A

The 1206CC391KAT1A is a ceramic chip capacitor manufactured by AVX, housed in the widely-used 1206 surface-mount package. This component belongs to the general family of multilayer ceramic capacitors (MLCCs), which are fundamental passive components in modern electronics. Ceramic chip capacitors like this part are designed to store and release electrical energy, filter noise, decouple power supplies, and stabilize voltage in circuits. The 1206 package format measures approximately 3.2mm × 1.6mm and is one of the most commonly encountered sizes in industrial and consumer electronics. This standardized form factor makes it compatible with automated assembly equipment and high-volume manufacturing processes, which is why it remains prevalent across countless applications. The "CC" designation in this part number indicates it is a ceramic capacitor with specific electrical and environmental characteristics. AVX's ceramic capacitor lines typically serve demanding industrial environments, including automotive electronics, telecommunications equipment, power supplies, and control systems. These capacitors are valued in applications where reliability, stability over temperature, and long service life are critical requirements. Engineers typically specify ceramic capacitors for bypass and decoupling applications near power pins on microcontrollers, digital signal processors, and analog integrated circuits, where they suppress high-frequency noise and stabilize supply voltages. They are also used in timing circuits, filters, and AC coupling applications. The 1206 size strikes a practical balance between component density and ease of hand-rework, making it popular in both prototype development and production environments. When selecting this exact part number over alternatives, considerations typically include the specific capacitance value encoded in the part number, the manufacturer's quality rating, temperature stability class, and voltage rating—all of which are tuned for particular circuit requirements. AVX components are recognized for consistent performance and compliance with automotive and industrial qualification standards, factors that influence specification decisions in regulated industries. The ceramic material composition in these capacitors provides excellent frequency response, making them suitable for both low-frequency filtering and high-frequency decoupling tasks. Their small size, low cost, and proven reliability in high-volume applications have established ceramic chip capacitors as indispensable components in virtually every category of modern electronic equipment, from simple consumer devices to complex industrial control systems.