Hello, I am trying to find the data sheet on a transistor "st 9 827" below "2015". Thank you. Also what an update equivalent item would be.

[MKmie.2]

..

[Tesla DeLorean]

Attach a clear, in focus, picture of the part with numbering visible and in-use context.

[MKmie.2]

Unfortunately it's still on the board.

[Tesla DeLorean]

Looks to be a TO-220 Darlington Transistor, not getting any hits on the part#

Any other equipment with same board? What's the board# perhaps there are some other examples out there.

[MKmie.2]

That's about as far as I got before, just wanted another verification on NPN. Problem now is the ratings. It is from the power board for a Mitutoyo Q2-MU-01-MI. Could not identify a part number for the power board however. Any thoughts on how to to start on the voltage / current specs? This one already burned up, don't want to over rate the new device. Another company wants over $1K just to look at it.