2SB511-C Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -35 V
• Collector-Base Voltage, max: -35 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1.5 A
• Collector Dissipation: 10 W
• DC Current Gain (h_fe): 40 to 80
• Transition Frequency, min: 8 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 2SB511-C transistor can have a current gain of 40 to 80. The gain of the 2SB511 will be in the range from 40 to 320, for the 2SB511-D it will be in the range from 60 to 120, for the 2SB511-E it will be in the range from 100 to 200, for the 2SB511-F it will be in the range from 160 to 320.Sometimes the "2S" prefix is not marked on the package - the 2SB511-C might only be marked "B511-C".The complementary NPN transistor to the 2SB511-C is the 2SD325-C.You can replace the 2SB511-C with the 2N6107, 2N6107G, 2N6108, 2N6109, 2N6109G, 2N6110, 2N6124, 2N6125, 2N6132, 2N6133, 2N6489, 2N6489G, 2N6490, 2N6490G, 2SA1262, 2SA1488, 2SA489, 2SA489-R, 2SA490, 2SA490-R, 2SA614, 2SA614R, 2SA671, 2SA754, 2SA755, 2SA770, 2SB1097, 2SB1097-M, 2SB434, 2SB434R, 2SB435, 2SB435-R, 2SB507, 2SB507C, 2SB514, 2SB514C, 2SB707, 2SB707-R, 2SB761, 2SB761-R, 2SB762, 2SB762-R, 2SB942, 2SB942-R, BD202, BD204, BD240, BD240A, BD242, BD242A, BD244, BD244A, BD302, BD304, BD534, BD534K, BD536, BD536K, BD540, BD540A, BD706, BD708, BD736, BD738, BD744, BD744A, BD796, BD798, BD808, BD906, BD908, BD934, BD934F, BD936, BD936F, BD950, BDT82, BDT82F, BDT92, BDT92F, D44C4, D44C5, D44C6, D44C7, D44C8, D44C9, D45C4, D45C5, D45C6, D45C7, D45C8, D45C9, KSA614, KSA614R, KSB1097, KSB1097-R, KSB707, KSB707-R, MJE2901T, MJE2955T, MJE2955TG or NTE197.