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| PartNumber | FQAF9N50 | FQAF8N80 | FQAF85N08F |
| Description | MOSFET 500V N-Channel QFET | MOSFET 800V 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-3PN-3 | TO-3PN-3 | - |
| Number of Channels | 1 Channel | 1 Channel | - |
| Transistor Polarity | N-Channel | N-Channel | - |
| Vds Drain Source Breakdown Voltage | 500 V | 800 V | - |
| Id Continuous Drain Current | 7.2 A | 5.9 A | - |
| Rds On Drain Source Resistance | 730 mOhms | 1.2 Ohms | - |
| Vgs Gate Source Voltage | 30 V | 30 V | - |
| Minimum Operating Temperature | - 55 C | - 55 C | - |
| Maximum Operating Temperature | + 150 C | + 150 C | - |
| Pd Power Dissipation | 90 W | 107 W | - |
| Configuration | Single | Single | - |
| Channel Mode | Enhancement | Enhancement | - |
| Packaging | Tube | Tube | - |
| Height | 20.1 mm | 20.1 mm | - |
| Length | 16.2 mm | 16.2 mm | - |
| Transistor Type | 1 N-Channel | 1 N-Channel | - |
| Type | MOSFET | MOSFET | - |
| Width | 5 mm | 5 mm | - |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | - |
| Forward Transconductance Min | 6.9 S | 7.3 S | - |
| Fall Time | 60 ns | 80 ns | - |
| Product Type | MOSFET | MOSFET | - |
| Rise Time | 95 ns | 110 ns | - |
| Factory Pack Quantity | 30 | 30 | - |
| Subcategory | MOSFETs | MOSFETs | - |
| Typical Turn Off Delay Time | 55 ns | 100 ns | - |
| Typical Turn On Delay Time | 25 ns | 40 ns | - |
| Unit Weight | 0.000194 oz | 0.050717 oz | - |
| Part # Aliases | - | FQAF8N80_NL | - |