KTA1271Y Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -30 V
• Collector-Base Voltage, max: -35 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.8 A
• Collector Dissipation: 0.625 W
• DC Current Gain (h_fe): 160 to 320
• Transition Frequency, min: 120 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92
• Electrically Similar to the Popular 2SA1271-Y transistor

The KTA1271Y 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 KTA1271Y transistor can have a current gain of 160 to 320. The gain of the KTA1271 will be in the range from 100 to 320, for the KTA1271O it will be in the range from 100 to 200.The complementary NPN transistor to the KTA1271Y is the KTC3203Y.The 2SA1036 (SOT-23), 2SA1204 (SOT-89), 2SA1204-Y (SOT-89), 2SA1588 (SOT-323), 2SA1621 (SOT-23), 2SA1621-Y (SOT-23), KTA1298 (SOT-23), KTA1298-Y (SOT-23), KTA1505 (SOT-23), KTA1505S (SOT-23), KTA1664 (SOT-89), KTA1664Y (SOT-89), KTC8550S (SOT-23) and KTC8550S-D (SOT-23) is the SMD version of the KTA1271Y transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.The 2SA1271-Y is the TO-92 version of the KTA1271Y.You can replace the KTA1271Y with the 2N4954, 2SA1150, 2SA1150-Y, 2SA1271, 2SA1271-Y, 2SA1273, 2SA1273-Y, 2SA1382, 2SA1534A, 2SA1680, 2SA1761, 2SA684, 2SA928A, 2SA928A-Y, 2SA950, 2SA950-Y, 2SA966, 2SA966-Y, 2SB1116, 2SB1116A, 2SB1229, 2SB740, 2SB740-C, 2SB764, 2SB764-F, 2SB892, 2SB985, KSA928A, KSA928A-Y, KSB1116, KSB1116A, KSB1116S, KTA1272, KTA1272Y, KTA1273, KTA1273Y, KTA1282, KTA1282Y, KTB764, KTB764-GR, STB1277 or STB1277-Y.Same transistor is also available in:

• TO-92 package, KTC3203: 0.625 watts