| Manufacturer | Part Number | Description |
|---|---|---|
| 2SK4021 | N-Channel MOSFET | |
| K4021 | 2SK4021 | |
| 2SK4022 | N-Channel MOSFET | |
NEC |
2SK4027 | N-Channel MOSFET |
NEC |
2SK4028 | N-Channel MOSFET |
| 2SK402 | N-Channel MOSFET Transistor | |
| 2SK4020 | N-Channel MOSFET | |
| 2SK4023 | N-Channel MOSFET | |
| 2SK4026 | N-Channel MOSFET |