2SA985-Q Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -120 V
• Collector-Base Voltage, max: -120 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1.5 A
• Collector Dissipation: 25 W
• DC Current Gain (h_fe): 100 to 200
• Transition Frequency, min: 180 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The 2SA985-Q transistor can have a current gain of 100 to 200. 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-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, for the 2SA985S it will be in the range from 170 to 340.Sometimes the "2S" prefix is not marked on the package - the 2SA985-Q might only be marked "A985-Q".The complementary NPN transistor to the 2SA985-Q is the 2SC2275-Q.The 2SA1201 (SOT-89) and KTA1661 (SOT-89) is the SMD version of the 2SA985-Q transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SA985-Q with the 2SA1006, 2SA1006-Q, 2SA1006A, 2SA1006A-Q, 2SA1011, 2SA1011E, 2SA1077, 2SA1078, 2SA1306, 2SA1306A, 2SA1306B, 2SA1667, 2SA1668, 2SA1859, 2SA1859A, 2SA1930, 2SA1964, 2SA1964-E, 2SA968, 2SA968A, 2SA968B, 2SA985A, 2SA985A-Q, 2SB1085, 2SB1085-E, 2SB1085A, 2SB1085A-E, 2SB1186, 2SB1186-E, 2SB1186A, 2SB1186A-E, 2SB546, 2SB546A, 2SB546A-K, 2SB547, 2SB630, 2SB630-Q, 2SB861, 2SB861C, 2SB940, 2SB940-P, 2SB940A, 2SB940A-P, BD942, BD942F, BD956, BDT88, BDT88F, KSB546, KTA1659, KTA1659A, KTA968, KTA968A, KTB1369, MJE15029, MJE15029G, MJE15031, MJE15031G, MJF15031 or MJF15031G.