2SA231 Datasheet and Replacement

   Type Designator: 2SA231
   Material of Transistor: Ge
   Polarity: PNP
   Maximum Collector Power Dissipation (Pc): 3 W
   Maximum Collector-Base Voltage |Vcb|: 40 V
   Maximum Emitter-Base Voltage |Veb|: 12 V
   Maximum Collector Current |Ic max|: 0.4 A
   Max. Operating Junction Temperature (Tj): 70 °C
   Transition Frequency (ft): 1 MHz
   Forward Current Transfer Ratio (hFE), MIN: 30
   Noise Figure, dB: -
   Package: TO8
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