| 300321 | BC550B | Discrete Devices-Transistor-NPN Bipolar Transistor | Taiwan Semiconductor |
| 300322 | BC550BBU | NPN Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300323 | BC550BP | General purpose NPN transistor | FERRANTI |
| 300324 | BC550BP | Low Noise NPN Transistor | FERRANTI |
| 300325 | BC550BTA | NPN Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300326 | BC550BTAR | NPN Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300327 | BC550BU | NPN Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300328 | BC550C | 0.625W General Purpose NPN Plastic Leaded Transistor. 45V Vceo, 0.100A Ic, 420 - 800 hFE | Continental Device India Limited |
| 300329 | BC550C | Silicon NPN Epitaxial Planar Low Noise AF Transistor | IPRS Baneasa |
| 300330 | BC550C | Low frequency transistor | mble |
| 300331 | BC550C | Low Noise Transistors | Motorola |
| 300332 | BC550C | Low Noise Transistors | ON Semiconductor |
| 300333 | BC550C | NPN general purpose transistors | Philips |
| 300334 | BC550C | NPN Silicon Transistor for low-noise AF prestages | Siemens |
| 300335 | BC550C | 50 V, 100 mA, NPN silicon transistor | Siemens |
| 300336 | BC550C | Discrete Devices-Transistor-NPN Bipolar Transistor | Taiwan Semiconductor |
| 300337 | BC550CBU | NPN Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300338 | BC550CP | General purpose NPN transistor | FERRANTI |
| 300339 | BC550CP | Low Noise NPN Transistor | FERRANTI |
|
| 300340 | BC550CTA | NPN Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300341 | BC550P | General purpose NPN transistor | FERRANTI |
| 300342 | BC550P | Low Noise NPN Transistor | FERRANTI |
| 300343 | BC556 | PNP SILICON PLANAR EPITAXIAL TRANSISTORS | Boca Semiconductor Corporation |
| 300344 | BC556 | 0.500W General Purpose NPN Plastic Leaded Transistor. 80V Vceo, 0.100A Ic, 75 - 475 hFE | Continental Device India Limited |
| 300345 | BC556 | Si-Epitaxial PlanarTransistors | Diotec Elektronische |
| 300346 | BC556 | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300347 | BC556 | Small Signal Transistors (PNP) | General Semiconductor |
| 300348 | BC556 | PNP Silicon Epitaxial Planar Transistor | Honey Technology |
| 300349 | BC556 | Silicon PNP Epitaxial Planar Low Noise AF Transistor | IPRS Baneasa |
| 300350 | BC556 | General Purpose Transistor | Korea Electronics (KEC) |
| 300351 | BC556 | PNP Silicon Amplifier Transistor 625mW | Micro Commercial Components |
| 300352 | BC556 | PNP SILICON AF SMALL SIGNAL TRANSISTORS | Micro Electronics |
| 300353 | BC556 | Amplifier Transistors | Motorola |
| 300354 | BC556 | Amplifier Transistors(PNP Silicon) | ON Semiconductor |
| 300355 | BC556 | PNP general purpose transistors | Philips |
| 300356 | BC556 | PNP Silicon Epitaxial Planar Transistor for switching and AF applications¡¡¡¡ | Semtech |
| 300357 | BC556 | Transistor PNP | Siemens |
| 300358 | BC556 | PNP Silicon Transistor for AF pre- and driver stages | Siemens |
| 300359 | BC556 | PNP SILICON TRANSISTORS | Siemens |
| 300360 | BC556 | Transistor. Switching and AF amplifier. High voltage. Low noise. Vcbo = -80V, Vceo= -65V, Vebo = -5V, Pc = 500mW, Ic = -100mA. | USHA India LTD |
