2SA1943O Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -230 V
• Collector-Base Voltage, max: -230 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -15 A
• Collector Dissipation: 150 W
• DC Current Gain (h_fe): 80 to 160
• Transition Frequency, min: 30 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-264

Here is an image showing the pin diagram of this transistor.The 2SA1943O transistor can have a current gain of 80 to 160. The gain of the 2SA1943 will be in the range from 55 to 160, for the 2SA1943R it will be in the range from 55 to 110.Sometimes the "2S" prefix is not marked on the package - the 2SA1943O might only be marked "A1943O".The complementary NPN transistor to the 2SA1943O is the 2SC5200O.You can replace the 2SA1943O with the 2SA1943N, 2SA1962, 2SA1962O, 2SA1986, 2SA1986-O, 2SA2151A, 2SA2151A-O, 2SA2151A-P, 2SA2151A-Y, FJA4213, FJA4213O, FJL4215, FJL4215O, KTA1943, KTA1943A, KTA1943AO, KTA1943O, KTA1962, KTA1962A, KTA1962AO, KTA1962O, MJL4302A, MJL4302AG, MJW1302A, MJW1302AG or TTA1943.