| Manufacturer | Part Number | Description |
|---|---|---|
| BUV21 | NPN Silicon Power Transistor | |
SavantIC |
BUV21 | SILICON POWER TRANSISTOR |
| BUV21G | NPN Silicon Power Transistor | |
| Unknown Manufacturer | BUV21 | NPN Silicon Low Frequency High Power Switching Transistor |
Motorola Semiconductor (now NXP Semiconductors) |
BUV21 | 40 AMPERES NPN SILICON POWER METAL TRANSISTOR |
Semelab |
BUV21 | Bipolar NPN Device |