BCP55 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 60 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 1 A
• Collector Dissipation: 1.5 W
• DC Current Gain (h_fe): 40 to 250
• 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 BCP55 transistor is marked as "BCP55".The complementary PNP transistor to the BCP55 is the BCP52.You can replace the BCP55 with the BCP56, BDP951, BDP953 or BDP955.