2SA748-P Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -50 V
• Collector-Base Voltage, max: -70 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -2 A
• Collector Dissipation: 15 W
• DC Current Gain (h_fe): 50 to 100
• Transition Frequency, min: 120 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The 2SA748-P transistor can have a current gain of 50 to 100. The gain of the 2SA748 will be in the range from 50 to 220, for the 2SA748-Q it will be in the range from 80 to 160, for the 2SA748-R it will be in the range from 120 to 220.Sometimes the "2S" prefix is not marked on the package - the 2SA748-P might only be marked "A748-P".The complementary NPN transistor to the 2SA748-P is the 2SC1398-P.The BSR30 (SOT-89) and FMMT551 (SOT-23) is the SMD version of the 2SA748-P transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SA748-P with the 2N6107, 2N6107G, 2N6108, 2N6109, 2N6109G, 2N6110, 2N6125, 2N6133, 2N6134, 2N6475, 2N6490, 2N6490G, 2N6491, 2N6491G, 2SA1008, 2SA1010, 2SA1262, 2SA1488, 2SA1488A, 2SA1725, 2SA1725-O, 2SA1726, 2SA1726-O, 2SA489, 2SA614, 2SA671, 2SA754, 2SA755, 2SA770, 2SA771, 2SB1016, 2SB1017, 2SB1090, 2SB1097, 2SB1367, 2SB1368, 2SB434, 2SB507, 2SB514, 2SB595, 2SB596, 2SB633, 2SB703, 2SB703A, 2SB707, 2SB708, 2SB747, 2SB761, 2SB761A, 2SB762, 2SB762A, 2SB942, 2SB942A, 2SB995, 2SB996, BD204, BD240A, BD240B, BD240C, BD242A, BD242B, BD242C, 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, BD936, BD936F, BD938, BD938F, BD940, BD940F, BD950, BD952, BD954, BDT82, BDT82F, BDT84, BDT84F, BDT86, BDT86F, BDT92, BDT92F, BDT94, BDT94F, BDT96, BDT96F, BDX78, D44C10, D44C11, D44C12, D44C7, D44C8, D44C9, D45C10, D45C11, D45C12, D45C7, D45C8, D45C9, KSA1010, KSA614, KSB1017, KSB1097, KSB596, KSB707, KSB708, KTB1367, KTB1368, MJE2901T, MJE2955T, MJE2955TG, MJF2955, MJF2955G, NTE153 or NTE197.