2SA1619A 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: -0.5 A
• Collector Dissipation: 1 W
• DC Current Gain (h_fe): 80 to 340
• Transition Frequency, min: 200 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92MOD

Here is an image showing the pin diagram of this transistor.The 2SA1619A transistor can have a current gain of 80 to 340. The gain of the 2SA1619A-Q will be in the range from 80 to 170, for the 2SA1619A-R it will be in the range from 120 to 240, for the 2SA1619A-S it will be in the range from 170 to 340.Sometimes the "2S" prefix is not marked on the package - the 2SA1619A might only be marked "A1619A".The complementary NPN transistor to the 2SA1619A is the 2SC4208A.The FMMTA55 (SOT-23) and KST55 (SOT-23) is the SMD version of the 2SA1619A transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SA1619A with the 2SA1522, 2SA1523, 2SA1524, 2SA1525, 2SA1526, 2SA1527, 2SA1528, 2SA1529, 2SB560 or KSA708C.