On Wednesday, September 13, 2017 at 11:35:58 AM UTC-4, wrote:
im working on a arcade game board . the tip 120 for an eject soleniod is driven right off the processor leg, no pre -driver transistor. didnt even think that was possible, maybe that why it blew. is there a mosfet i can replace the tip120 with?

thanks

So a 5 V drive? You could look up logic level mosfets on digikey.
Is there a diode across the solenoid drive? (for inductance)

George H.