IRF540S-VB is an N-channel metal oxide semiconductor field effect transistor (MOSFET) device with a rated voltage of 100V and a maximum continuous current of 45A. Its RDS(ON) performs well at different voltages, which are 32mΩ @ 10V and 34mΩ @ 4.5V respectively. In addition, its threshold voltage (Vth) is 2V.