| Manufacturer | Part Number | Description |
|---|---|---|
Fairchild (now onsemi) |
MMPQ3904 | NPN General Purpose Amplifier |
| MMPQ3904 | NPN Multi-Chip General-Purpose Amplifier | |
Central Semiconductor |
MMPQ3904 | SURFACE MOUNT NPN SILICON QUAD TRANSISTOR |
| MMPQ3904 | NPN General Purpose Amplifier | |
Motorola Semiconductor (now NXP Semiconductors) |
MMPQ3904 | Quad Amplifier/Switch Transistor |