2SA719 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -25 V
• Collector-Base Voltage, max: -30 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.5 A
• Collector Dissipation: 0.625 W
• DC Current Gain (h_fe): 85 to 340
• Transition Frequency, min: 200 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The 2SA719 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 2SA719 transistor can have a current gain of 85 to 340. The gain of the 2SA719-Q will be in the range from 85 to 170, for the 2SA719-R it will be in the range from 120 to 240, for the 2SA719-S it will be in the range from 170 to 340.Sometimes the "2S" prefix is not marked on the package - the 2SA719 might only be marked "A719".The complementary NPN transistor to the 2SA719 is the 2SC1317.The 2SA1588 (SOT-323), KTA1505 (SOT-23) and KTA1505S (SOT-23) is the SMD version of the 2SA719 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SA719 with the 2N4954, 2SA1522, 2SA1523, 2SA1524, 2SA1525, 2SA1526, 2SA1527, 2SA1528, 2SA1529, 2SA1534, 2SA1534A, 2SA1619, 2SA1619A, 2SA683, 2SA684, 2SA720, 2SB598, 2SB621, 2SB621A, KSB564AC, KSB810, KSB811, MPS3638 or PN3638.