2SC2912 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 200 V
• Collector-Base Voltage, max: 200 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.14 A
• Collector Dissipation: 10 W
• DC Current Gain (h_fe): 100 to 400
• Transition Frequency, min: 150 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-126

Here is an image showing the pin diagram of this transistor.The 2SC2912 transistor can have a current gain of 100 to 400. The gain of the 2SC2912-R will be in the range from 100 to 200, for the 2SC2912-S it will be in the range from 140 to 280, for the 2SC2912-T it will be in the range from 200 to 400.Sometimes the "2S" prefix is not marked on the package - the 2SC2912 might only be marked "C2912".The complementary PNP transistor to the 2SC2912 is the 2SA1210.You can replace the 2SC2912 with the 2SC2899, BD127, BD128, BD129 or BUX86.