$ 0 0 Quote: Originally Posted by YUAN I believe you are asking the gate voltage window. For the gate voltage, please follow the application note. 0V is recommend for the discrete devices. https://www.infineon.com/dgdl/Infine...63b098fe26306a Dear YUAN, I had a look at the application note AN2018-09 and i am not sure if the the IMZ120R030M1H is able to operate with a gate voltage of +18/-5. Is it safe to operate the device for a reasonable amount of time? Could you please clarify?