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| Part Number | 2N4091E3 | 2N4091 | 2N4091UB | 2N4091UB/TR |
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Series | - | - | - | - |
| Package/Case | - | TO-206AA, TO-18-3 Metal Can | 3-SMD, No Lead | 3-SMD, No Lead |
| Packaging | Bulk | Bulk | Bulk | Tape & Reel (TR) |
| Product Status | Active | Active | Active | Active |
| FET Type | - | N-Channel | N-Channel | N-Channel |
| Voltage - Breakdown (V(BR)GSS) | - | 40 V | 40 V | 40 V |
| Drain to Source Voltage (Vdss) | - | 40 V | 40 V | 40 V |
| Current - Drain (Idss) @ Vds (Vgs=0) | - | 30 mA @ 20 V | 30 mA @ 20 V | 30 mA @ 20 V |
| Current Drain (Id) - Max | - | - | - | - |
| Voltage - Cutoff (VGS off) @ Id | - | - | - | - |
| Input Capacitance (Ciss) (Max) @ Vds | - | 16pF @ 20V | 16pF @ 20V | 16pF @ 20V |
| Resistance - RDS(On) | - | 30 Ohms | 30 Ohms | 30 Ohms |
| Power - Max | - | 360 mW | 360 mW | 360 mW |
| Operating Temperature | - | -65°C ~ 175°C (TJ) | -65°C ~ 175°C (TJ) | -65°C ~ 175°C (TJ) |
| Grade | - | - | - | - |
| Qualification | - | - | - | - |
| Mounting Type | - | Through Hole | Surface Mount | Surface Mount |
| Supplier Device Package | - | TO-18 | UB | UB |
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