| 300401 | BC556C | TO-92 Plastic-Encapsulate Biploar Transistors | Micro Commercial Components |
| 300402 | BC556CBU | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300403 | BC556CTA | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300404 | BC556P | General purpose PNP transistor | FERRANTI |
| 300405 | BC556TF | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300406 | BC556TFR | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300407 | BC556VI | PNP Silicon Transistor for AF pre- and driver stages | Siemens |
| 300408 | BC556VI | 80 V, 100 mA, PNP silicon transistor | Siemens |
| 300409 | BC556_J18Z | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300410 | BC557 | PNP SILICON PLANAR EPITAXIAL TRANSISTORS | Boca Semiconductor Corporation |
| 300411 | BC557 | 0.500W General Purpose PNP Plastic Leaded Transistor. 45V Vceo, 0.100A Ic, 75 - 800 hFE | Continental Device India Limited |
| 300412 | BC557 | Si-Epitaxial PlanarTransistors | Diotec Elektronische |
| 300413 | BC557 | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300414 | BC557 | Small Signal Transistors (PNP) | General Semiconductor |
| 300415 | BC557 | PNP Silicon Epitaxial Planar Transistor | Honey Technology |
| 300416 | BC557 | Silicon PNP Epitaxial Planar Low Noise AF Transistor | IPRS Baneasa |
| 300417 | BC557 | General Purpose Transistor | Korea Electronics (KEC) |
| 300418 | BC557 | Low frequency transistor | mble |
| 300419 | BC557 | Low frequency transistor | mble |
|
| 300420 | BC557 | PNP Silicon Amplifier Transistor 625mW | Micro Commercial Components |
| 300421 | BC557 | PNP SILICON AF SMALL SIGNAL TRANSISTORS | Micro Electronics |
| 300422 | BC557 | P-N-P Silicon Planar Epitaxial A.F. Transistor | Mullard |
| 300423 | BC557 | Amplifier Transistors | ON Semiconductor |
| 300424 | BC557 | PNP general purpose transistors | Philips |
| 300425 | BC557 | PNP Silicon Epitaxial Planar Transistor for switching and AF applications | Semtech |
| 300426 | BC557 | Transistor PNP | Siemens |
| 300427 | BC557 | PNP Silicon Transistor for AF pre- and driver stages | Siemens |
| 300428 | BC557 | 50 V, 100 mA, PNP silicon transistor | Siemens |
| 300429 | BC557 | Transistor. Switching and AF amplifier. High voltage. Low noise. Vcbo = -50V, Vceo= -45V, Vebo = -5V, Pc = 500mW, Ic = -100mA. | USHA India LTD |
| 300430 | BC557 | Small Signal Transistors (PNP) | Vishay |
| 300431 | BC5576P | General purpose PNP transistor | FERRANTI |
| 300432 | BC557A | PNP SILICON PLANAR EPITAXIAL TRANSISTORS | Boca Semiconductor Corporation |
| 300433 | BC557A | 0.500W General Purpose PNP Plastic Leaded Transistor. 45V Vceo, 0.100A Ic, 110 - 220 hFE | Continental Device India Limited |
| 300434 | BC557A | Si-Epitaxial PlanarTransistors | Diotec Elektronische |
| 300435 | BC557A | Small Signal Transistor (PNP) | General Semiconductor |
| 300436 | BC557A | Silicon PNP Epitaxial Planar Low Noise AF Transistor | IPRS Baneasa |
| 300437 | BC557A | PNP Silicon Amplifier Transistor 625mW | Micro Commercial Components |
| 300438 | BC557A | Amplifier Transistors | Motorola |
| 300439 | BC557A | Amplifier Transistors | ON Semiconductor |
| 300440 | BC557A | PNP general purpose transistors | Philips |
