2SC3992 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 800 V
• Collector-Base Voltage, max: 1100 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 12 A
• Collector Dissipation: 200 W
• DC Current Gain (h_fe): 10 to 40
• Transition Frequency, min: 15 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-3P

Here is an image showing the pin diagram of this transistor.The 2SC3992 transistor can have a current gain of 10 to 40. The gain of the 2SC3992-K will be in the range from 10 to 20, for the 2SC3992-L it will be in the range from 15 to 30, for the 2SC3992-M it will be in the range from 20 to 40.Sometimes the "2S" prefix is not marked on the package - the 2SC3992 might only be marked "C3992".You can replace the 2SC3992 with the 2SC3552, 2SC3993, 2SC3994 or KSC3552.