The CL21A106KQFNNNG is a multilayer ceramic capacitor (MLCC) manufactured by Samsung. It is a surface-mount device (SMD/SMT) and is rated at 10 microfarads (uF) capacitance with a 6.3V rated voltage and a +/- 10% tolerance. Its dielectric is an X5R (temperature stable) ceramic material in a 2012 case size.