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| PartNumber | FQP17N40 | FQP17N08 | FQP17N08/L |
| Description | MOSFET 400V N-Channel QFET | MOSFET 80V N-Channel QFET | |
| Manufacturer | ON Semiconductor | ON Semiconductor | - |
| Product Category | MOSFET | MOSFET | - |
| RoHS | Y | Y | - |
| Technology | Si | Si | - |
| Mounting Style | Through Hole | Through Hole | - |
| Package / Case | TO-220-3 | TO-220-3 | - |
| Number of Channels | 1 Channel | 1 Channel | - |
| Transistor Polarity | N-Channel | N-Channel | - |
| Vds Drain Source Breakdown Voltage | 400 V | 80 V | - |
| Id Continuous Drain Current | 16 A | 16.5 A | - |
| Rds On Drain Source Resistance | 270 mOhms | 115 mOhms | - |
| Vgs Gate Source Voltage | 30 V | 25 V | - |
| Minimum Operating Temperature | - 55 C | - 55 C | - |
| Maximum Operating Temperature | + 150 C | + 175 C | - |
| Pd Power Dissipation | 170 W | 65 W | - |
| Configuration | Single | Single | - |
| Channel Mode | Enhancement | Enhancement | - |
| Tradename | QFET | - | - |
| Packaging | Tube | Tube | - |
| Height | 16.3 mm | 16.3 mm | - |
| Length | 10.67 mm | 10.67 mm | - |
| Series | FQP17N40 | - | - |
| Transistor Type | 1 N-Channel | 1 N-Channel | - |
| Type | MOSFET | MOSFET | - |
| Width | 4.7 mm | 4.7 mm | - |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | - |
| Forward Transconductance Min | 13 S | 5.3 S | - |
| Fall Time | 105 ns | 25 ns | - |
| Product Type | MOSFET | MOSFET | - |
| Rise Time | 185 ns | 60 ns | - |
| Factory Pack Quantity | 1000 | 50 | - |
| Subcategory | MOSFETs | MOSFETs | - |
| Typical Turn Off Delay Time | 90 ns | 15 ns | - |
| Typical Turn On Delay Time | 40 ns | 4.8 ns | - |
| Unit Weight | 0.063493 oz | 0.050717 oz | - |