2SA1940R 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: -8 A
• Collector Dissipation: 80 W
• DC Current Gain (h_fe): 55 to 100
• Transition Frequency, min: 30 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 2SA1940R transistor can have a current gain of 55 to 100. The gain of the 2SA1940 will be in the range from 55 to 160, for the 2SA1940O it will be in the range from 80 to 160.Sometimes the "2S" prefix is not marked on the package - the 2SA1940R might only be marked "A1940R".The complementary NPN transistor to the 2SA1940R is the 2SC5197R.You can replace the 2SA1940R with the 2SA1093, 2SA1093-R, 2SA1104, 2SA1105, 2SA1106, 2SA1146, 2SA1146-R, 2SA1186, 2SA1186-O, 2SA1264, 2SA1264-O, 2SA1264-R, 2SA1264N, 2SA1264N-O, 2SA1264N-R, 2SA1265, 2SA1265-O, 2SA1265-R, 2SA1294, 2SA1294-O, 2SA1301, 2SA1301R, 2SA1302, 2SA1302R, 2SA1303, 2SA1303-O, 2SA1386, 2SA1386-O, 2SA1386A, 2SA1386A-O, 2SA1386A-P, 2SA1386A-Y, 2SA1490, 2SA1490-O, 2SA1491, 2SA1491-O, 2SA1492, 2SA1492-O, 2SA1516, 2SA1516-R, 2SA1694, 2SA1694-O, 2SA1695, 2SA1695-O, 2SA1804, 2SA1804-R, 2SA1805, 2SA1805-R, 2SA1941, 2SA1941R, 2SA1942, 2SA1942R, 2SA1943, 2SA1943R, 2SA1986, 2SA1986-R, 2SA2120, 2SA2120-R, 2SA2121, 2SA2121-R, 2SA2151, 2SA2151-O, 2SA2151A, 2SA2151A-O, 2SA2151A-P, 2SA2151A-Y, 2SA2223, 2SA2223-O, 2SB1429, 2SB1429-R, 2SB688, 2SB688R, 2SB778, 2SB778-R, 2SB863, 2SB863-R, FJA4210, FJA4210R, KTA1943, KTA1943A, KTA1943AR, KTA1943R, KTA1962, KTA1962A, KTA1962AR, KTA1962R, KTB688, KTB688-R, KTB688B, KTB688B-R, KTB778, KTB778-R, MJW1302A, MJW1302AG, MJW21191, MJW21191G or NTE2329.