F21M12DL и другие
| Компонент | Описание | Производитель | |
| F21M12DL | Monolithic Crystal Filters |
ECM Electronics Limited. |
 |
| F21M12DU | Monolithic Crystal Filters |
ECM Electronics Limited. |
|
| FT21M12D | MONOLITHIC CRYSTAL FILTER |
List of Unclassifed Manufacturers |
|
| FT21M12DU | Monolithic Crystal Filters |
ECM Electronics Limited. |
|