CL21A475KAQNNNE

The CL21A475KAQNNNE is a multilayer ceramic capacitor (MLCC) manufactured by Samsung, designed for use in a wide range of electronic applications requiring compact, reliable energy storage and signal coupling. This component belongs to the CL series family, which represents Samsung's established line of general-purpose ceramic capacitors used extensively throughout the electronics industry. Multilayer ceramic capacitors are fundamental passive components used to store electrical energy, filter noise, couple and decouple signals, and stabilize voltage in circuits. The CL21 designation indicates this is a surface-mount device in a compact package format suitable for automated assembly on printed circuit boards. This package type allows for high-density PCB layouts while maintaining consistent performance characteristics across production batches. The "A" in the part number indicates the capacitor is rated for general consumer and industrial voltage levels, making it suitable for mainstream applications rather than specialized high-voltage environments. Samsung's CL series capacitors are recognized for consistent performance, good temperature stability, and reliable long-term operation across diverse environmental conditions typical of industrial and commercial electronics. This particular capacitor would typically be specified in applications including power supply circuits, audio frequency filtering, DC bias networks, timing circuits, and general decoupling applications in microcontroller and digital logic circuits. Engineers frequently encounter these capacitors in consumer electronics, industrial control systems, telecommunications equipment, and automotive electronics where cost-effectiveness, reliability, and compact form factor are important considerations. Compared to alternative capacitor technologies, MLCCs offer several advantages relevant to engineering design decisions. They provide smaller physical size than equivalent electrolytic capacitors, better high-frequency performance than traditional ceramic disc capacitors, and greater stability than some older capacitor families. The multilayer construction of Samsung's CL series provides enhanced capacitance density compared to single-layer designs, allowing engineers to achieve required capacitance values in minimal board space. The CL21A475KAQNNNE designation follows standard conventions for identifying specific capacitor variants within Samsung's product range. Engineers selecting this part would be choosing a standardized component with established supply chains, proven field reliability data, and compatibility with standard PCB assembly processes. For applications where component interchangeability and long-term availability are concerns, specifying a widely-used part number from an established manufacturer provides design confidence and manufacturing continuity advantages.