The part number MBASE21GAB5475MTNA01 refers to a CAP CER 4.7UF 16V X5R 0805, which is a specific type of ceramic capacitor. The details provided include a capacitance value of 4.7 microfarads, rated voltage of 16 volts, and a tolerance of ±20%. Additionally, it is noted that the component has an X5R temperature coefficient characteristic and is housed in an 0805 (2012 Metric) package size.