S9013 is a high current fast NPN transistor that can be used for general-purpose switching and amplification. It has a transition frequency of 140MHz. The transition frequency of a transistor is the frequency at which current gain drops to one, beyond which the transistor can no longer amplify signals. This limited bandwidth is due to internal parasitic capacitances.
collector-emitter breakdown:25V
collector current:500mA
Gain min. 40 and max. 300
Transition frequency:140MHz
Package with 650mW power dissipation:TO-92