I'm using an MC25060V2 fan, and I'd like to switch it on and off through software occasionally (i.e. not PWM or anything fancy like that). My thought is to either put an NPN BJT or a N-channel MOSFET on the low side and control it's gate with a 5V microcontroller GPIO pin. Any reason I should choose one technology over the other (or another approach altogether)? Here are schematic representations of what I'm proposing (just logical, representing fan as an inductor and part numbers / values not important).