ATR4251-PFPY19
VQFN
20000449-ATR4251-PFPY19
Nominal current is the same as the rated current. It is the current drawn by the motor while delivering rated mechanical output at its shaft.
Noise figure (NF) and noise factor (F) are measures of degradation of the signal-to-noise ratio (SNR), caused by components in a signal chain.
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.