2SA872A Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -120 V
• Collector-Base Voltage, max: -120 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.05 A
• Collector Dissipation: 0.3 W
• DC Current Gain (h_fe): 250 to 800
• Transition Frequency, min: 120 MHz
• Noise Figure, max: 5 dB
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The 2SA872A 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 2SA872A transistor can have a current gain of 250 to 800. The gain of the 2SA872A-D will be in the range from 250 to 500, for the 2SA872A-E it will be in the range from 400 to 800.Sometimes the "2S" prefix is not marked on the package - the 2SA872A might only be marked "A872A".The complementary NPN transistor to the 2SA872A is the 2SC1775A.The FJV992 (SOT-23) is the SMD version of the 2SA872A transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SA872A with the 2SA1016K, 2SA1082, 2SA1085, 2SA1285, 2SA1285A, 2SA992, 2SB716 or KSA992.