CL21A475KQCLNNC

The CL21A475KQCLNNC is a multilayer ceramic capacitor manufactured by Samsung, belonging to the CL21 series of general-purpose film and ceramic capacitors. This component is designed for high-volume industrial and consumer electronics applications where reliable energy storage and filtering are essential. Multilayer ceramic capacitors like this part serve as fundamental building blocks in modern electronics, functioning to store electrical energy, filter power supply noise, couple and decouple signals, and stabilize voltage rails across countless circuit designs. The CL21 series represents Samsung's established line of capacitors engineered for mainstream applications rather than specialized or extreme-performance scenarios. The designation structure of this part number indicates specific physical and electrical characteristics. The "CL21A" prefix identifies the series and package family, while the remaining alphanumeric code specifies the capacitance value, voltage rating, tolerance, and temperature coefficient. This particular variant comes in a surface-mount package suitable for automated assembly on printed circuit boards, making it ideal for high-speed manufacturing environments. Engineers typically specify Samsung CL21 series capacitors in cost-sensitive applications where performance requirements don't demand premium-grade components. These capacitors offer a balance between reliability, affordability, and availability across large production runs. They are commonly found in consumer electronics, industrial control systems, power management circuits, telecommunications equipment, and general-purpose PCB designs. The series is particularly popular in applications requiring numerous capacitors of similar electrical characteristics, such as decoupling networks, bulk capacitance filtering, and AC coupling stages. The robustness of the CL21 series across temperature and frequency variations makes it suitable for industrial environments that experience moderate thermal and electrical stress. Samsung's manufacturing consistency ensures that these capacitors maintain stable performance over their operational lifetime when used within specified electrical and thermal limits. When selecting the CL21A475KQCLNNC over alternative capacitors, engineers consider several factors: the specific capacitance value this part provides, its voltage rating for the target circuit, the standardized surface-mount package that fits their PCB design rules, and Samsung's track record of supply chain reliability. For applications requiring exact electrical specifications or performance in harsh operating conditions, alternative solutions from the same manufacturer or competitors might be more appropriate. However, for mainstream industrial and consumer applications where this part's ratings align with circuit requirements, it represents an established, cost-effective choice with proven field reliability.