BCX51-16 Bipolar Transistor

• Type: PNP
• 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: 1.2 W
• DC Current Gain (h_fe): 100 to 250
• Transition Frequency, min: 50 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: SOT-89

Here is an image showing the pin diagram of this transistor.The BCX51-16 transistor can have a current gain of 100 to 250. The gain of the BCX51 will be in the range from 63 to 250, for the BCX51-10 it will be in the range from 63 to 150.The complementary NPN transistor to the BCX51-16 is the BCX54-16.You can replace the BCX51-16 with the 2SA1364, 2SB1122, 2SB1123, 2SB1124, 2SB766A, BCX52, BCX52-16, BCX53, BCX53-16, BSR31 or BSR33.