2SA1283 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -6 V
• Collector Current − Continuous, max: -1 A
• Collector Dissipation: 0.9 W
• DC Current Gain (h_fe): 55 to 300
• Transition Frequency, min: 85 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 2SA1283 transistor can have a current gain of 55 to 300. The gain of the 2SA1283-C will be in the range from 55 to 110, for the 2SA1283-D it will be in the range from 90 to 180, for the 2SA1283-E it will be in the range from 150 to 300.Sometimes the "2S" prefix is not marked on the package - the 2SA1283 might only be marked "A1283".The complementary NPN transistor to the 2SA1283 is the 2SC3243.The 2SA1364 (SOT-89), FMMTA55 (SOT-23), KST55 (SOT-23) and MMBT4354 (SOT-23) is the SMD version of the 2SA1283 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.