DTL1657 Datasheet and Replacement

   Type Designator: DTL1657
   Material of Transistor: Si
   Polarity: NPN
   Maximum Collector Power Dissipation (Pc): 52 W
   Maximum Collector-Emitter Voltage |Vce|: 175 V
   Maximum Collector Current |Ic max|: 1 A
   Max. Operating Junction Temperature (Tj): 140 °C
   Transition Frequency (ft): 2.5 MHz
   Forward Current Transfer Ratio (hFE), MIN: 40
   Noise Figure, dB: -
   Package: TO66
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