| PartNumber | 531EC200M000DGR | 531EC250M000DG | 531EC200M000DG |
| Description | Standard Clock Oscillators Si531 2.5V LVPECL 20ppm tl, 200MHz | Standard Clock Oscillators Si531 2.5V LVPECL 20ppm tl, 250MHz | Standard Clock Oscillators Si531 2.5V LVPECL 20ppm tl, 200MHz |