| Manufacturer | Part Number | Description |
|---|---|---|
| Crystalonics Crystalonics | MV1638 | Voltage Variable Capacitance Diode |
| Knox Semiconductor Knox Semiconductor | MV1638 | ABRUPT VARACTOR DIODES |
Aeroflex |
MV1638 | Silicon Abrupt Varactors |
Motorola Semiconductor |
MV1638 | Silicon Tuning Diodes |