2SA1146-O Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -140 V
• Collector-Base Voltage, max: -140 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -10 A
• Collector Dissipation: 100 W
• DC Current Gain (h_fe): 80 to 160
• Transition Frequency, min: 70 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-3P

Here is an image showing the pin diagram of this transistor.The 2SA1146-O transistor can have a current gain of 80 to 160. The gain of the 2SA1146 will be in the range from 55 to 240, for the 2SA1146-R it will be in the range from 55 to 110, for the 2SA1146-Y it will be in the range from 120 to 240.Sometimes the "2S" prefix is not marked on the package - the 2SA1146-O might only be marked "A1146-O".The complementary NPN transistor to the 2SA1146-O is the 2SC2706-O.You can replace the 2SA1146-O with the 2SA1106, 2SA1186, 2SA1265, 2SA1265-O, 2SA1301, 2SA1301O, 2SA1302, 2SA1302O, 2SA1303, 2SA1386, 2SA1386A, 2SA1386A-O, 2SA1386A-P, 2SA1386A-Y, 2SA1491, 2SA1492, 2SA1516, 2SA1633, 2SA1695, 2SA1805, 2SA1941, 2SA1941O, 2SA1942, 2SA1942O, 2SA1943, 2SA1943N, 2SA1943O, 2SA1962, 2SA1962O, 2SA1986, 2SA1986-O, 2SA2062, 2SA2063, 2SA2120, 2SA2120-O, 2SA2121, 2SA2121-O, 2SA2151, 2SA2151A, 2SA2151A-O, 2SA2151A-P, 2SA2151A-Y, 2SB1162, 2SB1162-S, 2SB1163, 2SB1163-S, 2SB1429, 2SB1429-O, 2SB817, 2SB863, 2SB863-O, FJA4210, FJA4213, FJA4213O, FJL4215, FJL4215O, KTA1943, KTA1943A, KTA1943AO, KTA1943O, KTA1962, KTA1962A, KTA1962AO, KTA1962O, KTB817, KTB817B, MJW1302A, MJW1302AG, NTE2329, TTA0001, TTA0002 or TTA1943.