2SA993 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -50 V
• Collector-Base Voltage, max: -50 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.5 A
• Collector Dissipation: 0.625 W
• DC Current Gain (h_fe): 60 to 320
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -55 to +125 °C
• Package: TO-92

The 2SA993 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 2SA993 transistor can have a current gain of 60 to 320. The gain of the 2SA993B will be in the range from 60 to 120, for the 2SA993C it will be in the range from 100 to 200, for the 2SA993D it will be in the range from 160 to 320.Sometimes the "2S" prefix is not marked on the package - the 2SA993 might only be marked "A993".The complementary NPN transistor to the 2SA993 is the 2SC2277.The 2SA1518 (SOT-23), 2SA1519 (SOT-23), 2SA1520 (SOT-23), 2SA1521 (SOT-23), FMMTA55 (SOT-23) and KST55 (SOT-23) is the SMD version of the 2SA993 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SA993 with the 2SA1522, 2SA1523, 2SA1524, 2SA1525, 2SA1526, 2SA1527, 2SA1528, 2SA1529, 2SA984, 2SA984K, 2SB560, 2SB647, 2SB764, KSA708C or KTB764.