| Manufacturer | Part Number | Description |
|---|---|---|
| MMBT4403L | PNP GENERAL-PURPOSE TRANSISTOR | |
| SMMBT4403L | PNP Silicon Switching Transistor | |
Motorola Semiconductor (now NXP Semiconductors) |
MMBT4403LT1 | Switching Transistor |
| MMBT4403L | PNP Silicon Switching Transistor |