A733K Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -50 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.15 A
• Collector Dissipation: 0.25 W
• DC Current Gain (h_fe): 300 to 600
• Transition Frequency, min: 180 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The A733K is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, collector, and base leads.
Here is an image showing the pin diagram of this transistor.The A733K transistor can have a current gain of 300 to 600. The gain of the A733 will be in the range from 90 to 600, for the A733P it will be in the range from 200 to 400, for the A733Q it will be in the range from 135 to 270, for the A733R it will be in the range from 90 to 180.The complementary NPN transistor to the A733K is the C945BL.The 2SA1037 (SOT-23), 2SA1037-S (SOT-23), 2SA812 (SOT-23), 2SA812-M7 (SOT-23), FJX733 (SOT-323), KSA812 (SOT-23) and KSA812-L (SOT-23) is the SMD version of the A733K transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the A733K with the 2SA1522, 2SA1523, 2SA1524, 2SA1525, 2SA1526, 2SA1527, 2SA1528, 2SA1529, 2SB1116, 2SB1116-U, 2SB1116A-U, H733, H733-K, KSA733C, KSB1116, KSB1116-L, KSB1116S or KSB1116S-L.