I need a 2SD2422 solenoid driver transistor for a Mitsubishi ECU. I can't find any information on this part. The package is an insulated SOT-186
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and the part appears to have a damper diode between C and E. A good transistor measures 0.6V between B-E and B-C on a diode test, so I'm certain that it is not a Darlington, and there appears to be no B-E resistor. FWIW, its base is driven directly by an M1924FP Mitsubishi IC.
- Franc Zabkar