2SC5949 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: 15 A
• Collector Dissipation: 220 W
• DC Current Gain (h_fe): 55 to 160
• Transition Frequency, min: 30 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 2SC5949 transistor can have a current gain of 55 to 160. The gain of the 2SC5949-O will be in the range from 80 to 160, for the 2SC5949-R it will be in the range from 55 to 110.Sometimes the "2S" prefix is not marked on the package - the 2SC5949 might only be marked "C5949".The complementary PNP transistor to the 2SC5949 is the 2SA2121.You can replace the 2SC5949 with the 2SC3281, 2SC3320, 2SC5200, 2SC5200N, 2SC5242, 2SC5358, 2SC6011, 2SC6011A, 2SC6011A-O, 2SC6011A-P, 2SC6011A-Y, 2SD1313, FJA4313, FJL4315, KTC5200, KTC5200A, KTC5242, KTC5242A, MJW3281A, MJW3281AG or NTE2328.