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2N4946 Specs and Replacement

   Type Designator: 2N4946
   Material of Transistor: Si
   Polarity: NPN
   Maximum Collector Power Dissipation (Pc): 0.6 W
   Maximum Collector-Base Voltage |Vcb|: 80 V
   Maximum Collector-Emitter Voltage |Vce|: 40 V
   Maximum Emitter-Base Voltage |Veb|: 5 V
   Maximum Collector Current |Ic max|: 0.5 A
   Max. Operating Junction Temperature (Tj): 125 °C
   Transition Frequency (ft): 60 MHz
   Collector Capacitance (Cc): 25 pF
   Forward Current Transfer Ratio (hFE), MIN: 100
   Noise Figure, dB: -
   Package: TO106
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