| Manufacturer | Part Number | Description |
|---|---|---|
| Unknown Manufacturer | 2SA639 | PNP SIlicon Transistor |
Philips Semiconductors (now NXP Semiconductors)
| SA639 | Low voltage mixer FM IF system with filter amplifier and data switch |
NXP Semiconductors
| SA639 | Low voltage mixer FM IF system |
| Unknown Manufacturer | 2SA639S | PNP SIlicon Transistor |
Silan Microelectronics
| SA6392 | 4CHANNEL BTL DRIVER |
