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| Part Number | 2SK3821-DL-E | 2SK3820-DL-E | 
|---|---|---|
| Manufacturer | onsemi | onsemi | 
| Product Status | Obsolete | Obsolete | 
| FET Type | N-Channel | N-Channel | 
| Technology | MOSFET (Metal Oxide) | MOSFET (Metal Oxide) | 
| Drain to Source Voltage (Vdss) | 100 V | 100 V | 
| Current - Continuous Drain (Id) @ 25°C | 40A (Ta) | 26A (Ta) | 
| Drive Voltage (Max Rds On, Min Rds On) | 4V, 10V | 4V, 10V | 
| Rds On (Max) @ Id, Vgs | 33mOhm @ 20A, 10V | 60mOhm @ 13A, 10V | 
| Vgs(th) (Max) @ Id | 2.6V @ 1mA | - | 
| Gate Charge (Qg) (Max) @ Vgs | 73 nC @ 10 V | 44 nC @ 10 V | 
| Vgs (Max) | ±20V | ±20V | 
| Input Capacitance (Ciss) (Max) @ Vds | 4200 pF @ 20 V | 2150 pF @ 20 V | 
| FET Feature | - | - | 
| Power Dissipation (Max) | 1.65W (Ta), 65W (Tc) | 1.65W (Ta), 50W (Tc) | 
| Operating Temperature | 150°C (TJ) | 150°C (TJ) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Supplier Device Package | SMP-FD | SMP-FD | 
| Package / Case | TO-252-3, DPak (2 Leads + Tab), SC-63 | TO-263-3, D²Pak (2 Leads + Tab), TO-263AB |