2SA1942 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -160 V
• Collector-Base Voltage, max: -160 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -12 A
• Collector Dissipation: 120 W
• DC Current Gain (h_fe): 55 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 2SA1942 transistor can have a current gain of 55 to 160. The gain of the 2SA1942O will be in the range from 80 to 160, for the 2SA1942R it will be in the range from 55 to 110.Sometimes the "2S" prefix is not marked on the package - the 2SA1942 might only be marked "A1942".The complementary NPN transistor to the 2SA1942 is the 2SC5199.You can replace the 2SA1942 with the 2SA1301, 2SA1302, 2SA1386, 2SA1386A, 2SA1386A-O, 2SA1386A-P, 2SA1386A-Y, 2SA1492, 2SA1516, 2SA1943, 2SA1962, 2SA1986, 2SA2120, 2SA2121, 2SA2151, 2SA2151A, 2SA2151A-O, 2SA2151A-P, 2SA2151A-Y, 2SB1429, FJA4213, FJL4215, KTA1943, KTA1943A, KTA1962, KTA1962A, MJW1302A, MJW1302AG or NTE2329.