| Manufacturer | Part Number | Description |
|---|---|---|
| IDA | HC49UM | (HC49US/UM) Resistance Weld Low Profile Crystal |
ILSI
| HC49U | 2 Lead Metal Package Quartz Crystal |
| auris | HC49USSMD | Quartz SMD |
| auris | HC49US | Quartz THT |
| IDA | HC49US | (HC49US/UM) Resistance Weld Low Profile Crystal |
Fox Electronics
| HC49ULF | Resistance Weld Thru-Hole Crystal |
