The part number VJ0805Y123MXXMC refers to a ceramic capacitor with specific characteristics. This component is a type of CAP CER, denoted by its model number and specifications. It has a capacitance value of 0.012 microfarads (µF), operates at a voltage of 25 volts, and is classified as X7R, indicating its temperature coefficient. The capacitor's package size is identified as 0805, which corresponds to the 2012 Metric footprint.