2SA1270 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: -0.5 A
• Collector Dissipation: 0.5 W
• DC Current Gain (h_fe): 70 to 240
• Transition Frequency, min: 200 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The 2SA1270 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 2SA1270 transistor can have a current gain of 70 to 240. The gain of the 2SA1270 will be in the range from 70 to 240, for the 2SA1270-O it will be in the range from 70 to 140, for the 2SA1270-Y it will be in the range from 120 to 240.Sometimes the "2S" prefix is not marked on the package - the 2SA1270 might only be marked "A1270".The complementary NPN transistor to the 2SA1270 is the 2SC3202.The 2SA1182 (SOT-23), 2SA1588 (SOT-323), FJX1182 (SOT-323), KSA1182 (SOT-23), KTA1505 (SOT-23) and KTA1505S (SOT-23) is the SMD version of the 2SA1270 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.The KTA1270 is the TO-92 version of the 2SA1270.You can replace the 2SA1270 with the 2N4954, 2SA1020, 2SA1283, 2SA1522, 2SA1523, 2SA1524, 2SA1525, 2SA1526, 2SA1527, 2SA1528, 2SA1529, 2SA200, 2SA562TM, 2SA984, 2SA993, 2SB764, BC636, KSA708C, KSA931, KTA1270, KTA1281, KTA200 or KTB764.