2SB942-R Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -4 A
• Collector Dissipation: 40 W
• DC Current Gain (h_fe): 40 to 90
• Transition Frequency, min: 30 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220F

Here is an image showing the pin diagram of this transistor.The 2SB942-R transistor can have a current gain of 40 to 90. The gain of the 2SB942 will be in the range from 40 to 250, for the 2SB942-P it will be in the range from 120 to 250, for the 2SB942-Q it will be in the range from 70 to 150.Sometimes the "2S" prefix is not marked on the package - the 2SB942-R might only be marked "B942-R".The complementary NPN transistor to the 2SB942-R is the 2SD1267-R.You can replace the 2SB942-R with the 2N6107, 2N6107G, 2N6110, 2N6125, 2N6133, 2N6134, 2N6475, 2N6476, 2N6490, 2N6490G, 2N6491, 2N6491G, 2SA1010, 2SA1262, 2SA1488, 2SA1488A, 2SA489, 2SA770, 2SA771, 2SB1016, 2SB1017, 2SB1090, 2SB1097, 2SB1367, 2SB1368, 2SB595, 2SB596, 2SB633, 2SB703, 2SB703A, 2SB707, 2SB708, 2SB747, 2SB762, 2SB762-R, 2SB762A, 2SB762A-R, 2SB942A, 2SB942A-R, 2SB995, 2SB996, BD204, BD244A, BD244B, BD244C, BD304, BD536, BD536K, BD538, BD538K, BD540A, BD540B, BD540C, BD708, BD710, BD712, BD744A, BD744B, BD744C, BD798, BD800, BD802, BD808, BD810, BD908, BD910, BD912, BD950, BD952, BD954, BD956, BDT82, BDT82F, BDT84, BDT84F, BDT86, BDT86F, BDT88, BDT88F, BDT92, BDT92F, BDT94, BDT94F, BDT96, BDT96F, BDX78, D44C10, D44C11, D44C12, D44C7, D44C8, D44C9, D45C10, D45C11, D45C12, D45C7, D45C8, D45C9, KSA1010, KSB1017, KSB1097, KSB596, KSB707, KSB708, KTB1367, KTB1368, MJE15029, MJE15029G, MJE2901T, MJE2955T, MJE2955TG, MJE5170, MJF2955, MJF2955G, NTE153 or NTE197.