2SA1317-U Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -50 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -6 V
• Collector Current − Continuous, max: -0.2 A
• Collector Dissipation: 0.3 W
• DC Current Gain (h_fe): 280 to 560
• Transition Frequency, min: 200 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92S

Here is an image showing the pin diagram of this transistor.The 2SA1317-U transistor can have a current gain of 280 to 560. The gain of the 2SA1317 will be in the range from 100 to 560, for the 2SA1317-R it will be in the range from 100 to 200, for the 2SA1317-S it will be in the range from 140 to 280, for the 2SA1317-T it will be in the range from 200 to 400.Sometimes the "2S" prefix is not marked on the package - the 2SA1317-U might only be marked "A1317-U".The complementary NPN transistor to the 2SA1317-U is the 2SC3330-U.The 2SA1037 (SOT-23), 2SA1037-S (SOT-23), 2SA812 (SOT-23), FJX733 (SOT-323) and KSA812 (SOT-23) is the SMD version of the 2SA1317-U transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SA1317-U with the 2SA1318, 2SA1318-U, 2SA1391, 2SA1391-U, 2SA1392, 2SA1392-U, 2SA1522, 2SA1523, 2SA1524, 2SA1525, 2SA1526, 2SA1527, 2SA1528, 2SA1529, 2SB1116, 2SB1229, 2SB1229-U, 2SB560, 2SB560-G, 2SB892, 2SB892-U, 2SB985, 2SB985U, KSB1116 or KSB1116S.