The Infineon # IRFB31N20D was discontinued without a replacement. See possible alternative below.
| Digi-Key part number | 1727-4647-ND | |
| Manufacturer | Nexperia USA Inc. | Infineon |
| PHP33NQ20T,127 | IRFB31N20D | |
| FET Type | N-Channel | N-Channel |
| Drain to Source Voltage (Vdss) | 200V | 200V |
| Current - Continuous Drain (Id) @ 25°C | 32.7A (Tc) | 31A |
| Drive Voltage (Max Rds On, Min Rds On) | 10V | 10V |
| Rds On (Max) @ Id, Vgs | 77mOhm @ 15A, 10V | 82mOhm @ 18A,10V |
| Vgs(th) (Max) @ Id | 4V @ 1mA | 5.5V @ 250µA |
| Gate Charge (Qg) (Max) @ Vgs | 32.2 nC @ 10 V | 107 nC @ 10 V |
| Vgs (Max) | ±20V | ±30V |
| Input Capacitance (Ciss) (Max) @ Vds | 1870 pF @ 25 V | 2370 pF @ 25 V |
| Power Dissipation (Max) | 230W (Tc) | 200W(Tc) |
| Operating Temperature | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) |
| Mounting Type | Through Hole | Through Hole |
| Supplier Device Package | TO-220AB | TO-220AB |
| Package / Case | TO-220-3 | TO-220-3 |
Datasheets
IRFB_S_SL31N20DPbF.pmd (infineon.com)
Please review the datasheets to ensure the alternative will work for your application.