2SA57 Datasheet and Replacement

   Type Designator: 2SA57
   Material of Transistor: Ge
   Polarity: PNP
   Maximum Collector Power Dissipation (Pc): 0.055 W
   Maximum Collector-Base Voltage |Vcb|: 18 V
   Maximum Collector-Emitter Voltage |Vce|: 12 V
   Maximum Collector Current |Ic max|: 0.01 A
   Max. Operating Junction Temperature (Tj): 75 °C
   Transition Frequency (ft): 40 MHz
   Collector Capacitance (Cc): 4 pF
   Forward Current Transfer Ratio (hFE), MIN: 80
   Noise Figure, dB: -
   Package: TO44
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