AD157 Datasheet and Replacement

   Type Designator: AD157
   Material of Transistor: Ge
   Polarity: NPN
   Maximum Collector Power Dissipation (Pc): 8 W
   Maximum Collector-Base Voltage |Vcb|: 32 V
   Maximum Collector-Emitter Voltage |Vce|: 16 V
   Maximum Emitter-Base Voltage |Veb|: 10 V
   Maximum Collector Current |Ic max|: 2 A
   Max. Operating Junction Temperature (Tj): 85 °C
   Transition Frequency (ft): 1 MHz
   Forward Current Transfer Ratio (hFE), MIN: 50
   Noise Figure, dB: -
   Package: TO8
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