KTC3209 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 50 V
• Collector-Base Voltage, max: 50 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 2 A
• Collector Dissipation: 1 W
• DC Current Gain (h_fe): 70 to 240
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92MOD

Here is an image showing the pin diagram of this transistor.The KTC3209 transistor can have a current gain of 70 to 240. The gain of the KTC3209O will be in the range from 70 to 140, for the KTC3209Y it will be in the range from 120 to 240.The complementary PNP transistor to the KTC3209 is the KTA1281.The 2SC2873 (SOT-89), 2SC3444 (SOT-89), BCP55 (SOT-223) and BCX55 (SOT-89) is the SMD version of the KTC3209 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KTC3209 with the 2SC2655 or 2SC3328.