2SA954-K 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: -0.3 A
• Collector Dissipation: 0.6 W
• DC Current Gain (h_fe): 200 to 400
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The 2SA954-K 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 2SA954-K transistor can have a current gain of 200 to 400. The gain of the 2SA954 will be in the range from 90 to 400, for the 2SA954-L it will be in the range from 135 to 270, for the 2SA954-M it will be in the range from 90 to 180.Sometimes the "2S" prefix is not marked on the package - the 2SA954-K might only be marked "A954-K".The complementary NPN transistor to the 2SA954-K is the 2SC2003-K.You can replace the 2SA954-K with the 2SA1319, 2SA1319-T, 2SA1450, 2SA1450-T, 2SB560, KSA709C or KSA709CG.