2SB548-P Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -80 V
• Collector-Base Voltage, max: -100 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.8 A
• Collector Dissipation: 10 W
• DC Current Gain (h_fe): 160 to 320
• Transition Frequency, min: 70 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-126

Here is an image showing the pin diagram of this transistor.The 2SB548-P transistor can have a current gain of 160 to 320. The gain of the 2SB548 will be in the range from 40 to 320, for the 2SB548-Q it will be in the range from 100 to 200, for the 2SB548-R it will be in the range from 60 to 120, for the 2SB548-S it will be in the range from 40 to 80.Sometimes the "2S" prefix is not marked on the package - the 2SB548-P might only be marked "B548-P".The complementary NPN transistor to the 2SB548-P is the 2SD414-P.The 2SA1368 (SOT-89), 2SA1368-E (SOT-89), 2SB805 (SOT-89) and 2SD1006 (SOT-89) is the SMD version of the 2SB548-P transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SB548-P with the 2SA1021, 2SA1021-Y, 2SA1220, 2SA1220-P, 2SA1220A, 2SA1220A-P, 2SA1249, 2SA1507, 2SA795, 2SB1144, 2SB1167, 2SB1168, 2SB549, 2SB549-P, 2SB631, 2SB631-F, 2SB631K, 2SB631K-F, 2SB649, 2SB649-D, BD170, BD238, BD238G, BD380, BD380-25, KSA1220, KSA1220-Y, KSA1220A, KSA1220A-Y, KTA1704, KTA1704-GR, MJE252, MJE254 or MJE712.