Hello. We have many PWM DC drives where the transistor shorts out and the drive only operates at full speed. I have tried to find information on the transistor, but I am assuming that it is an OEM number on the part.
The transistor manufacturer is ON, and the part number printed on the surface is; Line 1 - G23J06AP, Line 2 - N60UF. Case size is TO220.
I am looking for a suitable replacement so we can replace just the transistor and we will not have to discard the complete speed controller.