2N1391 Datasheet and Replacement

   Type Designator: 2N1391
   Material of Transistor: Ge
   Polarity: NPN
   Maximum Collector Power Dissipation (Pc): 0.15 W
   Maximum Collector-Emitter Voltage |Vce|: 18 V
   Maximum Collector Current |Ic max|: 0.2 A
   Max. Operating Junction Temperature (Tj): 75 °C
   Transition Frequency (ft): 3 MHz
   Forward Current Transfer Ratio (hFE), MIN: 40
   Noise Figure, dB: -
   Package: TO5
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