2SB648-D Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -120 V
• Collector-Base Voltage, max: -180 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.05 A
• Collector Dissipation: 1 W
• DC Current Gain (h_fe): 160 to 320
• Transition Frequency, min: 140 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 2SB648-D transistor can have a current gain of 160 to 320. The gain of the 2SB648 will be in the range from 60 to 320, for the 2SB648-B it will be in the range from 60 to 120, for the 2SB648-C it will be in the range from 100 to 200.Sometimes the "2S" prefix is not marked on the package - the 2SB648-D might only be marked "B648-D".The complementary NPN transistor to the 2SB648-D is the 2SD668-D.You can replace the 2SB648-D with the 2SA1021, 2SA1021-Y, 2SA1142, 2SA1142P, 2SA1209, 2SA1210, 2SA1220, 2SA1220-P, 2SA1220A, 2SA1220A-P, 2SA1248, 2SA1249, 2SA1352, 2SA1352-F, 2SA1380, 2SA1380-F, 2SA1404, 2SA1404-F, 2SA1405, 2SA1405-F, 2SA1406, 2SA1406-F, 2SA1407, 2SA1407-F, 2SA1477, 2SA1478, 2SA1478-F, 2SA1507, 2SA1538, 2SA1538-F, 2SA1539, 2SA1539-F, 2SA1540, 2SA1540-F, 2SA1541, 2SA1541-F, 2SA795, 2SA795A, 2SA914, 2SB1109, 2SB1109-D, 2SB1110, 2SB1110-D, 2SB631K, 2SB631K-F, 2SB649, 2SB649-D, HSB1109, HSB1109-D, KSA1142, KSA1142Y, KSA1220, KSA1220-Y, KSA1220A, KSA1220A-Y, KTA1704 or KTA1704-GR.