CL03B821K03NNNC

The CL03B821K03NNNC is a multilayer ceramic capacitor (MLCC) manufactured by Samsung, part of the popular CL series designed for general-purpose industrial and commercial electronics applications. This component represents a common choice for circuit designers requiring reliable capacitive filtering, decoupling, and signal coupling functions across diverse electronic systems. Multilayer ceramic capacitors like this unit are fundamental passive components found in nearly every modern electronic device. They provide essential functions including power supply filtering, high-frequency noise suppression, signal decoupling between circuit stages, and timing circuit applications. The CL03B series specifically targets applications requiring compact form factors with solid electrical performance across temperature and frequency ranges typical of industrial environments. The CL03B series employs Samsung's mature MLCC technology, which combines multiple ceramic layers with internal electrodes to achieve stable capacitance in a small footprint. This construction method allows manufacturers to produce components with predictable behavior and consistent performance across production batches, making them reliable choices for both prototype development and high-volume manufacturing. The series is widely used in consumer electronics, industrial control systems, telecommunications equipment, automotive electronics, and power management circuits. An engineer might specify the CL03B821K03NNNC over alternative capacitor technologies for several practical reasons. Ceramic capacitors offer superior high-frequency performance compared to electrolytic alternatives, making them ideal for decoupling and filtering applications near integrated circuits. They occupy minimal board space, which is critical in modern compact designs. Samsung's CL series carries a reputation for consistent quality and availability from multiple distributors, reducing supply chain risk for manufacturers. Additionally, the cost-effectiveness of MLCCs compared to film or electrolytic capacitors makes them economical for volume production. The part number structure reveals specific characteristics of this unit. The "CL03B" designation indicates the series and package size, while the "821K03" codes convey the nominal capacitance value and voltage rating within Samsung's standard nomenclature system. The "NNNC" suffix typically denotes the packaging configuration and specific performance characteristics of this particular variant. Industrial buyers and design engineers select components like the CL03B821K03NNNC based on established performance parameters, proven reliability in target applications, and the ability to source consistently from qualified electronics distributors. For applications requiring stable, compact capacitive filtering across standard industrial temperature and voltage conditions, this Samsung MLCC represents a dependable standard-grade component suitable for demanding production environments.