daneloctober
Member level 2
Hello again!
This is very elementary but I need more insights since I'm not a power electronics guy...
The problem is, I have this circuit here:
Just the encircled part, don't mind the rest...
The mosfet (2N7000) keeps breaking. The relay (NY24WK) coil is rated 24V, at 120mW... So that's about 5mA of coil current, right? The 2N7000 is rated at about 115mA max. I'm really not sure what happens, but after a few switches (SW2+ and SW2- opening and shorting), the mosfet gets busted. I keep reading that the diode should be enough but apparently, in this case, it's not.
What more can I add to protect the mosfet? Thanks very much!
This is very elementary but I need more insights since I'm not a power electronics guy...
The problem is, I have this circuit here:
Just the encircled part, don't mind the rest...
The mosfet (2N7000) keeps breaking. The relay (NY24WK) coil is rated 24V, at 120mW... So that's about 5mA of coil current, right? The 2N7000 is rated at about 115mA max. I'm really not sure what happens, but after a few switches (SW2+ and SW2- opening and shorting), the mosfet gets busted. I keep reading that the diode should be enough but apparently, in this case, it's not.
What more can I add to protect the mosfet? Thanks very much!