2SA985S Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -35 V
• Collector-Base Voltage, max: -45 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1 A
• Collector Dissipation: 5 W
• DC Current Gain (h_fe): 170 to 340
• Transition Frequency, min: 200 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-126

Here is an image showing the pin diagram of this transistor.The 2SA985S transistor can have a current gain of 170 to 340. The gain of the 2SA985 will be in the range from 60 to 320, for the 2SA985-P it will be in the range from 160 to 320, for the 2SA985-Q it will be in the range from 100 to 200, for the 2SA985-R it will be in the range from 60 to 120, for the 2SA985Q it will be in the range from 85 to 170, for the 2SA985R it will be in the range from 120 to 240.Sometimes the "2S" prefix is not marked on the package - the 2SA985S might only be marked "A985S".You can replace the 2SA985S with the 2SA885, 2SA885S, 2SB1142, 2SB1143, 2SB1165, 2SB1166, 2SB731, 2SB986, BD132, BD166, BD168, BD188, BD190, BD234, BD234G, BD236, BD236G, BD376, BD376-25, BD378, BD378-25, MJE232, MJE235, MJE371, MJE371G, MJE710 or MJE711.