BCP54-10 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 45 V
• Collector-Base Voltage, max: 45 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 1 A
• Collector Dissipation: 1.5 W
• DC Current Gain (h_fe): 63 to 160
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-223

Here is an image showing the pin diagram of this transistor.The complementary PNP transistor to the BCP54-10 is the BCP51-10.You can replace the BCP54-10 with the BCP54, BCP55, BCP55-10, BCP56, BCP56-10, BDP951 or NZT44H8.