KT903B (2T903B)
The structure of n-p-n
The maximum allowable (pulse) the collector-base 60 (80) V
The maximum allowable (pulse) collector-emitter voltage 60 (80) V
The maximum permissible continuous (pulse) Collector Current 3000 (5000) mA
The maximum allowable continuous power dissipation without heat collector (with heatsink) (30) W
Static current transfer ratio of bipolar transistor in the common-emitter 40-180
Reverse current collector <= 10000 uA
Cutoff frequency of the current transfer ratio in the common-emitter => 120 MHz
The noise figure of the bipolar transistor <2.5 dB
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