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| Part Number | FDT439N | FDT459N |
|---|---|---|
| Manufacturer | onsemi | Fairchild Semiconductor |
| Product Status | Active | Active |
| FET Type | N-Channel | N-Channel |
| Technology | MOSFET (Metal Oxide) | MOSFET (Metal Oxide) |
| Drain to Source Voltage (Vdss) | 30 V | 30 V |
| Current - Continuous Drain (Id) @ 25°C | 6.3A (Ta) | 6.5A (Ta) |
| Drive Voltage (Max Rds On, Min Rds On) | 2.5V, 4.5V | 4.5V, 10V |
| Rds On (Max) @ Id, Vgs | 45mOhm @ 6.3A, 4.5V | 35mOhm @ 6.5A, 10V |
| Vgs(th) (Max) @ Id | 1V @ 250µA | 2V @ 250µA |
| Gate Charge (Qg) (Max) @ Vgs | 15 nC @ 4.5 V | 17 nC @ 10 V |
| Vgs (Max) | ±8V | ±20V |
| Input Capacitance (Ciss) (Max) @ Vds | 500 pF @ 15 V | 365 pF @ 15 V |
| FET Feature | - | - |
| Power Dissipation (Max) | 3W (Ta) | 3W (Ta) |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount |
| Supplier Device Package | SOT-223-4 | SOT-223-4 |
| Package / Case | TO-261-4, TO-261AA | TO-261-4, TO-261AA |
