BSP41 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 60 V
• Collector-Base Voltage, max: 70 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 1 A
• Collector Dissipation: 1.3 W
• DC Current Gain (h_fe): 100 to 300
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: SOT-223

Here is an image showing the pin diagram of this transistor.The BSP41 transistor is marked as "BSP41".The complementary PNP transistor to the BSP41 is the BSP31.You can replace the BSP41 with the BDP949, BDP951, BDP953, BDP955, BSP43, NZT44H8 or NZT560.