SA51 и другие
| Компонент | Описание | Производитель | |
| 2SA503 | SILICON PNP EPITAXIAL |
New Jersey Semi-Conductor Products, Inc. |
 |
| 2SA504 | SILICON PNP EPITAXIAL |
New Jersey Semi-Conductor Products, Inc. |
|
| 2SA505 | SILICON PNP EPITAXIAL TYPE(PCT PROCESS) |
Toshiba Semiconductor |
|
| 2SA510 | SILICON PNP EPITAXIAL TYPE |
Toshiba Semiconductor |
|
| 2SA512 | SILICON PNP EPITAXIAL TYPE |
Toshiba Semiconductor |
|
| 2SA52 | GERMANIUM PNP ALLOY JUNCTION TRANSISTOR |
List of Unclassifed Manufacturers |
|
| 2SA539 | LOW FREQUENCY AMPLIFIER |
Usha India Ltd. |
|
| 2SA539O | LOW FREQUENCY AMPLIFIER |
Usha India Ltd. |
|
| 2SA539R | LOW FREQUENCY AMPLIFIER |
Usha India Ltd. |
|
| 2SA539Y | LOW FREQUENCY AMPLIFIER |
Usha India Ltd. |
|