2SC4544 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 300 V
• Collector-Base Voltage, max: 300 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 0.1 A
• Collector Dissipation: 8 W
• DC Current Gain (h_fe): 30 to 200
• Transition Frequency, min: 50 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 2SC4544 might only be marked "C4544".You can replace the 2SC4544 with the 2SC2898, 2SC3310, 2SC3794, 2SC3794A, 2SC3795, 2SC3795A, 2SC3868, 2SC4242, 2SC5241, BUX84, BUX85, KTC3229, MJE13070, MJE13071, MJE16002, MJE16004 or MJE2360T.