2SC3055 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 400 V
• Collector-Base Voltage, max: 450 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 2 A
• Collector Dissipation: 15 W
• DC Current Gain (h_fe): 20 to 80
• Transition Frequency, min: 28 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.Sometimes the "2S" prefix is not marked on the package - the 2SC3055 might only be marked "C3055".You can replace the 2SC3055 with the 2SC2333, 2SC2335, 2SC2898, 2SC3310, 2SC3795, 2SC3795A, 2SC3866, 2SC4242, 2SC5241, 2SC5353, KSC2333, KSC2335, MJE13070, MJE13071, MJE16002, MJE16004, MJE8502 or MJE8503.