My Bosch PSR 14.4V cordless drill doesn't work properly. It always run on full speed, it's not possible to control the speed by adjusting the pressure on the power button. This means it can only be used as drill, not a screw driver. The battery indicator LEDs which normally show the battery level are flashing. It's probably an error code or something.
I have dissambled the drill and found what appears to be a burned MOSFET, see these photos:
The first photo shows the burned component, the other one shows a close up of what appears to be a similar component with the text
95 48 04NG.
I believe it is a 04NG MOSFET, but what does the other numbers mean?
Is it likely that the burned component is identical to the one in photo #2?
Should this MOSFET from Ebay be okay?
It it likely that other components are dead too?