| 300521 | BC558A | 30 V, 100 mA, PNP silicon transistor | Siemens |
| 300522 | BC558A | Transistors, RF & AF | Vishay |
| 300523 | BC558ABU | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300524 | BC558AP | General purpose PNP transistor | FERRANTI |
| 300525 | BC558ATA | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300526 | BC558B | 30 V, PNP silicon planar epitaxial transistor | Boca Semiconductor Corporation |
| 300527 | BC558B | 0.500W General Purpose PNP Plastic Leaded Transistor. 30V Vceo, 0.100A Ic, 200 - 450 hFE | Continental Device India Limited |
| 300528 | BC558B | Si-Epitaxial PlanarTransistors | Diotec Elektronische |
| 300529 | BC558B | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300530 | BC558B | Small Signal Transistor (PNP) | General Semiconductor |
| 300531 | BC558B | Silicon PNP Epitaxial Planar Low Noise AF Transistor | IPRS Baneasa |
| 300532 | BC558B | Low frequency transistor | mble |
| 300533 | BC558B | TO-92 Plastic-Encapsulate Biploar Transistors | Micro Commercial Components |
| 300534 | BC558B | Amplifier Transistors | Motorola |
| 300535 | BC558B | Amplifier Transistors | ON Semiconductor |
| 300536 | BC558B | PNP Silicon Transistor for AF pre- and driver stages | Siemens |
| 300537 | BC558B | 30 V, 100 mA, PNP silicon transistor | Siemens |
| 300538 | BC558B | Transistors, RF & AF | Vishay |
| 300539 | BC558BBU | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
|
| 300540 | BC558BP | General purpose PNP transistor | FERRANTI |
| 300541 | BC558BRL | Amplifier Transistors | ON Semiconductor |
| 300542 | BC558BRL1 | Amplifier Transistors | ON Semiconductor |
| 300543 | BC558BTA | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300544 | BC558BTAR | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300545 | BC558BTF | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300546 | BC558BTFR | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300547 | BC558BU | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300548 | BC558BZL1 | Amplifier Transistors | ON Semiconductor |
| 300549 | BC558C | 30 V, PNP silicon planar epitaxial transistor | Boca Semiconductor Corporation |
| 300550 | BC558C | 0.500W General Purpose PNP Plastic Leaded Transistor. 30V Vceo, 0.100A Ic, 420 - 800 hFE | Continental Device India Limited |
| 300551 | BC558C | Si-Epitaxial PlanarTransistors | Diotec Elektronische |
| 300552 | BC558C | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300553 | BC558C | Small Signal Transistor (PNP) | General Semiconductor |
| 300554 | BC558C | Silicon PNP Epitaxial Planar Low Noise AF Transistor | IPRS Baneasa |
| 300555 | BC558C | TO-92 Plastic-Encapsulate Biploar Transistors | Micro Commercial Components |
| 300556 | BC558C | PNP Silicon Transistor for AF pre- and driver stages | Siemens |
| 300557 | BC558C | 30 V, 100 mA, PNP silicon transistor | Siemens |
| 300558 | BC558C | Transistors, RF & AF | Vishay |
| 300559 | BC558CBU | PNP Epitaxial Silicon Transistor | Fairchild Semiconductor |
| 300560 | BC558CP | General purpose PNP transistor | FERRANTI |
