Features
1) Low saturation voltage, tipically
   VCE(sat)=-150mV at IC/IB=-1A/-50mA.
2) Collector-emitter voltage=-60V
3) PD=2W (Mounted on a ceramic board
   (40×40×0.7mm) ).
4) Complementary NPN Types : 2SD2391

APPLICATION
   LOW FREQUENCY AMPLIFIER