TXC Corporation discontinued their 7S series of surface mount crystals. This notice was provided on PCN PCF-180306-02 released on March 6th, 2018. You can view this PCN here. In this PCN, TXC Corporation designated the 8Z or 7R series as the replacements for the 7S series. Please see the table below for a list of obsolete part numbers that DigiKey carried along with an optional replacement part number. You can click on the DigiKey part number to view the product page for each respective part number. Please note, there may be some minor differences between the obsolete part number and the replacement part number. Please review the replacement part number to ensure it will work for your application.
| Obsolete P/N | DigiKey P/N | Replacement P/N | DigiKey P/N |
|---|---|---|---|
| 7S-24.000MAHE-T | 887-1838-2-ND | 8Z-24.000MAHE-T | 887-8Z-24.000MAHE-TTR-ND |
| 7S-25.000MAHE-T | 887-1840-2-ND | 8Z-25.000MAHE-T | 887-8Z-25.000MAHE-TTR-ND |
| 7S-37.400MAHE-T | 887-1843-2-ND | 8Z-37.400MAHQ-T | 8Z-37.400MAHQ-T-ND |
| 7S-19.200MAHE-T | 887-1835-2-ND | 8Z-19.200MAHE-T | 887-8Z-19.200MAHE-TTR-ND |
| 7S-16.000MAHE-T | 887-1833-2-ND | 8Z-16.000MAHE-T | 887-8Z-16.000MAHE-TTR-ND |
| 7S-18.432MAHE-T | 887-1834-2-ND | 8Z-18.432MAHE-T | 887-8Z-18.432MAHE-TTR-ND |
| 7S-26.000MAHE-T | 887-1841-2-ND | 8Z-26.000MAAE-T | 887-2404-2-ND |
| 7S-20.000MAHE-T | 887-1836-2-ND | 8Z-20.000MAAE-T | 887-2402-2-ND |
| 7S-18.432MAAE-T | 7S-18.432MAAE-T-ND | 8Z-18.432MAHE-T | 887-8Z-18.432MAHE-TTR-ND |
| 7S-12.000MAAE-T | 7S-12.000MAAE-T-ND | 8Z-12.000MAHE-T | 887-8Z-12.000MAHE-TTR-ND |
| 7S-14.31818MAAE-T | 7S-14.31818MAAE-T-ND | 8Z-14.31818MAAE-T | 887-2398-2-ND |
| 7S-16.000MAAE-T | 7S-16.000MAAE-T-ND | 8Z-16.000MAHE-T | 887-8Z-16.000MAHE-TTR-ND |
| 7S-19.200MAAE-T | 7S-19.200MAAE-T-ND | 8Z-19.200MAHE-T | 887-8Z-19.200MAHE-TTR-ND |
| 7S-20.000MAAE-T | 7S-20.000MAAE-T-ND | 8Z-20.000MAAE-T | 887-2402-2-ND |
| 7S-22.1184MAAE-T | 7S-22.1184MAAE-T-ND | NONE | N/A |
| 7S-24.000MAAE-T | 7S-24.000MAAE-T-ND | 8Z-24.000MAHE-T | 887-8Z-24.000MAHE-TTR-ND |
| 7S-24.576MAAE-T | 7S-24.576MAAE-T-ND | 8Z-24.576MAAE-T | 8Z-24.576MAAE-T-ND |
| 7S-25.000MAAE-T | 7S-25.000MAAE-T-ND | 8Z-25.000MAHE-T | 887-8Z-25.000MAHE-TTR-ND |
| 7S-26.000MAAE-T | 7S-26.000MAAE-T-ND | 8Z-26.000MAAE-T | 887-2404-2-ND |
| 7S-27.000MAAE-T | 7S-27.000MAAE-T-ND | 8Z-27.000MAAE-T | 887-2405-2-ND |
| 7S-37.400MAAE-T | 7S-37.400MAAE-T-ND | 8Z-37.400MAHQ-T | 8Z-37.400MAHQ-T-ND |
| 7S-48.000MAAE-T | 7S-48.000MAAE-T-ND | 8Z-48.000MAAE-T | 887-2408-2-ND |
| 7S-22.1184MAHE-T | 887-1837-2-ND | NONE | N/A |
| 7S-24.576MAHE-T | 887-1839-2-ND | 8Z-24.576MAAE-T | 8Z-24.576MAAE-T-ND |
| 7S-14.31818MAHE-T | 887-1832-2-ND | 8Z-14.31818MAAE-T | 887-2398-2-ND |
| 7S-27.000MAHE-T | 887-1842-2-ND | 8Z-27.000MAAE-T | 887-2405-2-ND |
| 7S-12.000MAHE-T | 887-1831-2-ND | 8Z-12.000MAHE-T | 887-8Z-12.000MAHE-TTR-ND |
| 7S-48.000MAHE-T | 887-1844-2-ND | 8Z-48.000MAAE-T | 887-2408-2-ND |
| 7S12010002 | 7S12010002-ND | 8Z-12.000MAHE-T | 887-8Z-12.000MAHE-TTR-ND |
| 7S12020001 | 7S12020001-ND | 8Z-12.000MAHQ-T | 887-2588-2-ND |
| 7S12077001 | 7S12077001-ND | 8Z-12.000MAHE-T | 887-8Z-12.000MAHE-TTR-ND |
| 7S-16.000MAAJ-T | 7S-16.000MAAJ-T-ND | 8Z-16.000MAHJ-T | 8Z-16.000MAHJ-T-ND |
| 7S-16.000MAAK-T | 7S-16.000MAAK-T-ND | 8Z-16.000MAHK-T | 8Z-16.000MAHK-T-ND |
| 7S-16.000MAHJ-T | 7S-16.000MAHJ-T-ND | 8Z-16.000MAHJ-T | 8Z-16.000MAHJ-T-ND |
| 7S-16.000MAHK-T | 7S-16.000MAHK-T-ND | 8Z-16.000MAHK-T | 8Z-16.000MAHK-T-ND |
| 7S-16.000MDHQ-T | 7S-16.000MDHQ-T-ND | 8Z-16.000MAHQ-T | 887-2589-2-ND |
Please review the datasheets to ensure the alternative will work for your application.