Hello, I will be controlling a cartridge heater-12VDC, 40W (this kind) using this type of MOSFET to maintain a desired temperature using Arduino UNO. I am just thinking, if this heater is inductive, I also should add a diode to protect MOSFET. But I am wondering- how to check whether my heater cartridge is inductive or not, (i.e.) whether I really need to add a doide or not?
If I have to add, then how? Please help me. I am very new in this area. Thank you very much