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| Part Number | STF40N20 | STF40NF20 | STF20N20 |
|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Obsolete | Active | Obsolete |
| FET Type | N-Channel | N-Channel | N-Channel |
| Technology | MOSFET (Metal Oxide) | MOSFET (Metal Oxide) | MOSFET (Metal Oxide) |
| Drain to Source Voltage (Vdss) | 200 V | 200 V | 200 V |
| Current - Continuous Drain (Id) @ 25°C | 40A (Tc) | 40A (Tc) | 18A (Ta) |
| Drive Voltage (Max Rds On, Min Rds On) | 10V | 10V | 10V |
| Rds On (Max) @ Id, Vgs | 45mOhm @ 20A, 10V | 45mOhm @ 20A, 10V | 125mOhm @ 10A, 10V |
| Vgs(th) (Max) @ Id | 4V @ 250µA | 4V @ 250µA | 4V @ 250µA |
| Gate Charge (Qg) (Max) @ Vgs | 75 nC @ 10 V | 75 nC @ 10 V | 39 nC @ 10 V |
| Vgs (Max) | ±20V | ±20V | ±20V |
| Input Capacitance (Ciss) (Max) @ Vds | 2500 pF @ 25 V | 2500 pF @ 25 V | 940 pF @ 25 V |
| FET Feature | - | - | - |
| Power Dissipation (Max) | 40W (Tc) | 40W (Tc) | 25W (Tc) |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Supplier Device Package | TO-220FP | TO-220FP | TO-220FP |
| Package / Case | TO-220-3 Full Pack | TO-220-3 Full Pack | TO-220-3 Full Pack |
