| Компонент | Описание | Производитель | |
| MQF21.4-1200-01 | Monolithic crystal filter |
Vectron International, Inc |
|
| MQF21.4-1200-02 | Monolithic crystal filter |
Vectron International, Inc |
|
| MQF21.4-1200-04 | Monolithic crystal filter |
Vectron International, Inc |
|
| MQF21.4-1200-06 | Monolithic crystal filter |
Vectron International, Inc |
|
| MQF21.4-1200-07 | Monolithic crystal filter |
Vectron International, Inc |
|
| QF21.4-12000 | Crystal filter |
Vectron International, Inc |