DTC643TK и другие
| Компонент | Описание | Производитель | |
| CHDTC643TKPT | NPN Digital Silicon Transistor |
Chenmko Enterprise Co. Ltd. |
 |
| CHDTC643TUPT | NPN Digital Silicon Transistor |
Chenmko Enterprise Co. Ltd. |
|
| DTC643TK | Digital transistors (built-in resistor) |
Rohm |
|
| DTC643TU | Digital transistors (built-in resistor) |
Rohm |
|