| 300281 | BC549CTFR | NPN Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300282 | BC549P | General purpose NPN transistor | FERRANTI |
| 300283 | BC549P | Low Noise NPN Transistor | FERRANTI |
| 300284 | BC549TAR | NPN Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300285 | BC549TF | NPN Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300286 | BC549TFR | NPN Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300287 | BC54PA | 45 V, 1 A NPN medium power transistor | Nexperia |
| 300288 | BC54PA | 45 V, 1 A NPN medium power transistor | NXP Semiconductors |
| 300289 | BC54PAS | 45 V/60 V/80 V, 1 A NPN medium power transistors | Nexperia |
| 300290 | BC55-10PA | 60 V, 1 A NPN medium power transistor | Nexperia |
| 300291 | BC55-10PA | 60 V, 1 A NPN medium power transistor | NXP Semiconductors |
| 300292 | BC55-10PAS | 45 V/60 V/80 V, 1 A NPN medium power transistors | Nexperia |
| 300293 | BC55-16PA | 60 V, 1 A NPN medium power transistor | Nexperia |
| 300294 | BC55-16PA | 60 V, 1 A NPN medium power transistor | NXP Semiconductors |
| 300295 | BC55-16PAS | 45 V/60 V/80 V, 1 A NPN medium power transistors | Nexperia |
| 300296 | BC550 | 0.625W General Purpose NPN Plastic Leaded Transistor. 45V Vceo, 0.100A Ic, 110 - 800 hFE | Continental Device India Limited |
| 300297 | BC550 | Switching and Applications | Fairchild Semiconductor |
| 300298 | BC550 | Silicon NPN Epitaxial Planar Low Noise AF Transistor | IPRS Baneasa |
| 300299 | BC550 | General Purpose Transistor | Korea Electronics (KEC) |
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| 300300 | BC550 | Low frequency transistor | mble |
| 300301 | BC550 | Low frequency transistor | mble |
| 300302 | BC550 | NPN SILICON AF SMALL SIGNAL TRANSISTORS | Micro Electronics |
| 300303 | BC550 | NPN general purpose transistors | Philips |
| 300304 | BC550 | Transistor NPN | Siemens |
| 300305 | BC550 | NPN Silicon Transistor for low-noise AF prestages | Siemens |
| 300306 | BC550 | 50 V, 100 mA, NPN silicon transistor | Siemens |
| 300307 | BC550 | Transistor. Switching and AF amplifier. Low noise. Vcbo = 50V, Vceo= 45V, Vebo = 5V, Pc = 500mW, Ic = 100mA. | USHA India LTD |
| 300308 | BC550A | 0.625W General Purpose NPN Plastic Leaded Transistor. 45V Vceo, 0.100A Ic, 110 - 220 hFE | Continental Device India Limited |
| 300309 | BC550A | Silicon NPN Epitaxial Planar Low Noise AF Transistor | IPRS Baneasa |
| 300310 | BC550A | Discrete Devices-Transistor-NPN Bipolar Transistor | Taiwan Semiconductor |
| 300311 | BC550ABU | NPN Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300312 | BC550ATA | NPN Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300313 | BC550B | 0.625W General Purpose NPN Plastic Leaded Transistor. 45V Vceo, 0.100A Ic, 200 - 450 hFE | Continental Device India Limited |
| 300314 | BC550B | NPN Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300315 | BC550B | Silicon NPN Epitaxial Planar Low Noise AF Transistor | IPRS Baneasa |
| 300316 | BC550B | Low frequency transistor | mble |
| 300317 | BC550B | Low Noise Transistors | Motorola |
| 300318 | BC550B | NPN general purpose transistors | Philips |
| 300319 | BC550B | NPN Silicon Transistor for low-noise AF prestages | Siemens |
| 300320 | BC550B | 50 V, 100 mA, NPN silicon transistor | Siemens |
