KTA1274 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -80 V
• Collector-Base Voltage, max: -80 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.4 A
• Collector Dissipation: 1 W
• DC Current Gain (h_fe): 70 to 240
• Transition Frequency, min: 100 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 KTA1274 transistor can have a current gain of 70 to 240. The gain of the KTA1274O will be in the range from 70 to 140, for the KTA1274Y it will be in the range from 120 to 240.The complementary NPN transistor to the KTA1274 is the KTC3227.The 2SA1620 (SOT-23) and KTA1662 (SOT-89) is the SMD version of the KTA1274 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KTA1274 with the 2N5401C, 2SA1275, 2SA1284, 2SA1315, 2SA817A, 2SA984K, 2SB560, 2SB647, KSA1013, KSA709C or KTA1275.