BCW33 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 32 V
• Collector-Base Voltage, max: 32 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.5 A
• Collector Dissipation: 0.35 W
• DC Current Gain (h_fe): 420 to 800
• Transition Frequency, min: 200 MHz
• Noise Figure, max: 4 dB
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-23

Here is an image showing the pin diagram of this transistor.The BCW33 transistor is marked as "D3".You can replace the BCW33 with the 2SC3912, 2SC3913, 2SC3914, 2SC3915, FMMT491A, FMMT619, FMMTA05, KST05, MMBTA05 or SMBTA05.