2SA1981S и другие
| Компонент | Описание | Производитель | |
| 2SA1981 | PNP Silicon Transistor (Audio power amplifier application) |
AUK corp |
 |
| 2SA1981 | PNP Plastic Encapsulated Transistor |
SeCoS Halbleitertechnologie GmbH |
|
| 2SA1981N | PNP Silicon Transistor |
AUK corp |
|
| 2SA1981S | PNP Silicon Transistor (Audio power amplifier application) |
AUK corp |
|
| 2SA1981S | Audio power amplifier application |
KODENSHI KOREA CORP. |
|
| 2SA1981SF | Audio power amplifier application |
KODENSHI KOREA CORP. |
|
| 2SA1981SF | PNP Silicon Transistor |
Guangdong Kexin Industrial Co.,Ltd |
|
| 2SA1981SF | PNP Silicon Transistor (Audio power amplifier application) |
AUK corp |
|