2SA953-K Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -60 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 2SA953-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 2SA953-K transistor can have a current gain of 200 to 400. The gain of the 2SA953 will be in the range from 90 to 400, for the 2SA953-L it will be in the range from 135 to 270, for the 2SA953-M it will be in the range from 90 to 180.Sometimes the "2S" prefix is not marked on the package - the 2SA953-K might only be marked "A953-K".The complementary NPN transistor to the 2SA953-K is the 2SC2002-K.You can replace the 2SA953-K with the 2SA1450, 2SA1450-T, 2SA954, 2SA954-K, 2SB1116A, 2SB1116A-K, 2SB560, KSA708C, KSB1116A or KSB1116A-G.