| Компонент | Описание | Производитель | |
| PX-4220-DBA-FA | Hybrid TTL Clock Oscillator |
Vectron International, Inc |
|
| PX-4220-DBA-FB | Hybrid TTL Clock Oscillator |
Vectron International, Inc |
|
| PX-4220-DBA-FF | Hybrid TTL Clock Oscillator |
Vectron International, Inc |
|
| PX-4220-DBA-FK | Hybrid TTL Clock Oscillator |
Vectron International, Inc |
|
| PX-4220-DBA-FS | Hybrid TTL Clock Oscillator |
Vectron International, Inc |