| Manufacturer | Part Number | Description |
|---|---|---|
| K544 | 2SK544 | |
| 2SK54 | SILICON N-CHANNEL JUNCTION FET | |
| K549 | 2SK549 | |
Unisonic Technologies |
2SK545 | JFET |
| 2SK544 | N-Channel MOSFET | |
| 2SK546 | N-Channel MOSFET | |
| 2SK545 | N-Channel JFET | |
| 2SK543 | N-Channel MOSFET | |
| 2SK549 | N-Channel MOSFET | |
| 2SK545 | N-Channel MOSFET | |
Inchange Semiconductor |
2SK549 | N-Channel MOSFET Transistor |