2STF1340 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 40 V
• Collector-Base Voltage, max: 40 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 3 A
• Collector Dissipation: 1.4 W
• DC Current Gain (h_fe): 250
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: SOT-89

Here is an image showing the pin diagram of this transistor.The 2STF1340 transistor is marked as "1340".The complementary PNP transistor to the 2STF1340 is the 2STF2340.You can replace the 2STF1340 with the 2SD1624-U.