2SC2274K Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 80 V
• Collector-Base Voltage, max: 100 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.5 A
• Collector Dissipation: 0.6 W
• DC Current Gain (h_fe): 60 to 320
• Transition Frequency, min: 120 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The 2SC2274K is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, collector, and base leads.
Here is an image showing the pin diagram of this transistor.The 2SC2274K transistor can have a current gain of 60 to 320. The gain of the 2SC2274K-D will be in the range from 60 to 120, for the 2SC2274K-E it will be in the range from 100 to 200, for the 2SC2274K-F it will be in the range from 160 to 320.Sometimes the "2S" prefix is not marked on the package - the 2SC2274K might only be marked "C2274K".The complementary PNP transistor to the 2SC2274K is the 2SA984K.The 2SC3438 (SOT-89) is the SMD version of the 2SC2274K transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SC2274K with the 2SC2383, 2SC3228, 2SD438, 2SD667, KSC1009C, KSC2383 or KTC3228.