would like to ask you about the power mosfet. How can I find the suitable mosfet for the DC motor? Is it depend on the specification of the motor? Example, if I get the 12V,0.3A motor, so the mosfet is 12V, 0.3A too. Is it ok if I use the higher mosfet current than the DC motor (like 12V,4.3A power mosfet)?