BCW72 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -45 V
• Collector-Base Voltage, max: -50 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.1 A
• Collector Dissipation: 0.25 W
• DC Current Gain (h_fe): 200 to 450
• Transition Frequency, min: 100 MHz
• Noise Figure, max: 10 dB
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: SOT-23

Here is an image showing the pin diagram of this transistor.The BCW72 transistor is marked as "K2".The complementary NPN transistor to the BCW72 is the BCW70.You can replace the BCW72 with the 2SA1037, 2SA1366, 2SA1518, 2SA1519, 2SA1520, 2SA1521, 2SA812, 2SB709A, 2SB709A-Q, 2SB709A-R, 2SB709A-S, 2STR2160, BC807, BC856, BC856B, BC857, BC857B, BC860, BC860B, BCW68, BCW72LT1, BCW72LT1G, BCX17, FMMTA55, FMMTA56, KSA812, KST55, KST56, MMBT200, MMBT4354, MMBTA55, MMBTA56, PMBTA56, SMBTA55 or SMBTA56.