SK9139 Datasheet and Replacement

   Type Designator: SK9139
   Material of Transistor: Si
   Polarity: NPN
   Maximum Collector Power Dissipation (Pc): 0.6 W
   Maximum Collector-Base Voltage |Vcb|: 25 V
   Maximum Collector-Emitter Voltage |Vce|: 12 V
   Maximum Emitter-Base Voltage |Veb|: 3 V
   Maximum Collector Current |Ic max|: 0.07 A
   Transition Frequency (ft): 5900 MHz
   Forward Current Transfer Ratio (hFE), MIN: 40
   Noise Figure, dB: -
   Package: TO92
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