2SC2921-O Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 160 V
• Collector-Base Voltage, max: 160 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 15 A
• Collector Dissipation: 150 W
• DC Current Gain (h_fe): 50 to 100
• Transition Frequency, min: 60 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: MT-200

Here is an image showing the pin diagram of this transistor.The 2SC2921-O transistor can have a current gain of 50 to 100. The gain of the 2SC2921 will be in the range from 50 to 180, for the 2SC2921-P it will be in the range from 70 to 140, for the 2SC2921-Y it will be in the range from 90 to 180.Sometimes the "2S" prefix is not marked on the package - the 2SC2921-O might only be marked "C2921-O".The complementary PNP transistor to the 2SC2921-O is the 2SA1215-O.You can replace the 2SC2921-O with the 2SC2773, 2SC2773-O, 2SC2774, 2SC2774-O, 2SC2922, 2SC2922-Y, 2SC3264, 2SC3264-O, 2SC3857, 2SC3857-O, 2SC3858 or 2SC3858-O.