The part number MCASQ21GSB7153MTNA01 refers to a specific component: CAP CER 0.015UF 250V X7R 0805. This component is identified as a ceramic capacitor with the following specifications: - Capacitance value: 0.015 microfarads - Voltage rating: 250 volts - Temperature coefficient (TC): ±20% - Case size and type: 0805, also known as 2012 Metric