BUX84 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 400 V
• Collector-Base Voltage, max: 800 V
• Emitter-Base Voltage, max: 10 V
• Collector Current − Continuous, max: 2 A
• Collector Dissipation: 40 W
• DC Current Gain (h_fe): 30
• Transition Frequency, min: 20 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.You can replace the BUX84 with the 2SC2333K, 2SC2333L, 2SC2335-K, 2SC2335-L, 2SC3038-N, 2SC3039-N, 2SC3446-N, 2SC3447-N, 2SC3749-N, 2SC3750-N, 2SC4105-N, 2SC4106N, 2SC4107-N, 2SC4108-N, 2SC4160-N, 2SC4161-N, 2SC4162-N, 2SC4163-N, 2SC4164-N, BUX85, KSC2333-O, KSC2333-Y, KSC2335-O, KSC2335-Y, KSC5020-Y, KSC5021-Y, KSC5021F-Y, MJE5742 or TIP152.