| Manufacturer | Part Number | Description |
|---|---|---|
Motorola Semiconductor (now NXP Semiconductors) |
MPSA18 | Low Noise Transistor |
| MPSA18 | NPN SILICON TRANSISTOR | |
| MPSA18 | Low Noise Transistor | |
Fairchild (now onsemi) |
MPSA18 | NPN General Purpose Amplifier |
Hi-Sincerity Mocroelectronics |
HMPSA18 | NPN SILICON TRANSISTOR |