The CL21C040CBANNNC is a multilayer ceramic capacitor (MLCC) manufactured by Samsung. It is rated 4pF, 50V, and 0805 with a RoHS compliance. This capacitor is a surface mount (SMD/SMT) component, and is capable of withstanding high temperatures, providing good electrical insulation, and having a low equivalent series resistance (ESR). It can be used in various applications such as high-frequency radio receivers and transmitters, power amplifiers, receivers, data converters, and various general-purpose electronic circuits. The CL21C040CBANNNC MLCC is an excellent choice for IoT and automotive applications.