| Manufacturer | Part Number | Description |
|---|---|---|
| Unknown Manufacturer | 1N5448A | SILICON EPICAP DIODES |
| Knox Semiconductor Inc | 1N5448 | GENERAL PURPOSE ABRUPT VARACTOR DIODES |
Motorola Semiconductor (now NXP Semiconductors)
| 1N5448ARL | Silicon Tuning Diodes |
Aeroflex
| 1N5448 | Silicon Abrupt Varactors |