2SA1266-O Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -50 V
• Collector-Base Voltage, max: -50 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.15 A
• Collector Dissipation: 0.4 W
• DC Current Gain (h_fe): 70 to 140
• Transition Frequency, min: 80 MHz
• Noise Figure, max: 1 dB
• Operating and Storage Junction Temperature Range: -55 to +125 °C
• Package: TO-92

The 2SA1266-O 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 2SA1266-O transistor can have a current gain of 70 to 140. The gain of the 2SA1266 will be in the range from 70 to 400, for the 2SA1266-GR it will be in the range from 200 to 400, for the 2SA1266-Y it will be in the range from 120 to 240.Sometimes the "2S" prefix is not marked on the package - the 2SA1266-O might only be marked "A1266-O".The complementary NPN transistor to the 2SA1266-O is the 2SC3198-O.The 2SA1162 (SOT-23), 2SA1162-O (SOT-23), 2SA1586 (SOT-323), 2SA1586-O (SOT-323), 2SA1832 (SOT-23), 2SA1832-O (SOT-23), FJX733 (SOT-323), FJX733O (SOT-323), KTA1504 (SOT-23), KTA1504O (SOT-23), KTA1504S (SOT-23) and KTA1504S-O (SOT-23) is the SMD version of the 2SA1266-O transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.The KTA1266O is the TO-92 version of the 2SA1266-O.You can replace the 2SA1266-O with the 2SA1015, 2SA1015O, 2SA1020, 2SA1020O, 2SA1048, 2SA1048-O, 2SA1267, 2SA1267-O, 2SA1283, 2SA1284, 2SA1315, 2SA1315-O, 2SA1522, 2SA1523, 2SA1524, 2SA1525, 2SA1526, 2SA1527, 2SA1528, 2SA1529, 2SA200, 2SA200-O, 2SA817, 2SA817-O, 2SA817A, 2SA817A-O, 2SA984, 2SA984K, 2SA993, 2SB560, 2SB647, 2SB647A, 2SB764, A1015, A1015O, BC212, BC638, BC640, KSA1015, KSA1015O, KSA708C, KSA708CO, KSA733C, KSA733CO, KSA931, KSA931O, KTA1266, KTA1266O, KTA1267, KTA1267O, KTA1274, KTA1274O, KTA1281, KTA1281O, KTA200, KTA200-O, KTA708 or KTB764.