| Manufacturer | Part Number | Description |
|---|---|---|
Motorola Semiconductor (now NXP Semiconductors) |
MJ4031 | Power Transistor |
Seme LAB |
MJ4031 | Bipolar PNP Device |
| MJ4031 | Silicon PNP Darlingtion Power Transistor | |
| MJ4031 | (MJ4030 - MJ4032) MEDIUM POWER COMPLEMENTARY SILICON TRANSISTORS |