h-bridge vs single MOSFET DC water pump

Other Hardware Motors, Mechanics, Power and CNC
6

And MOSFETs are available down to <1milliohm if you need even less heat dissipation. Hint: choosing a 100V
MOSFET for a 12V circuit is going to mean much higher on-resistances. Choose a 30V device with < 10 milliohm
on resistance maybe?