| PartNumber | FQI5N20TU | FQI5N15TU | FQI5N50CTU |
| Description | MOSFET | MOSFET 150V N-Channel QFET | MOSFET N-CH/500V/5A/A.QFET |
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Category | MOSFET | MOSFET | MOSFET |
| RoHS | Y | E | E |
| Technology | Si | Si | Si |
| Mounting Style | Through Hole | Through Hole | SMD/SMT |
| Package / Case | TO-262-3 | TO-262-3 | TO-263-3 |
| Number of Channels | 1 Channel | 1 Channel | 1 Channel |
| Transistor Polarity | N-Channel | N-Channel | N-Channel |
| Vds Drain Source Breakdown Voltage | 200 V | 150 V | 500 V |
| Id Continuous Drain Current | 4.5 A | 5.4 A | 5 A |
| Rds On Drain Source Resistance | 1.2 Ohms | 800 mOhms | 1.14 Ohms |
| Vgs Gate Source Voltage | 30 V | 25 V | 30 V |
| Minimum Operating Temperature | - 55 C | - 55 C | - 55 C |
| Maximum Operating Temperature | + 150 C | + 175 C | + 150 C |
| Pd Power Dissipation | 3.13 W | 3.75 W | 73 W |
| Configuration | Single | Single | Single |
| Channel Mode | Enhancement | Enhancement | Enhancement |
| Packaging | Tube | Tube | Tube |
| Height | 7.88 mm | 7.88 mm | 4.83 mm |
| Length | 10.29 mm | 10.29 mm | 10.67 mm |
| Transistor Type | 1 N-Channel | 1 N-Channel | 1 N-Channel |
| Type | MOSFET | MOSFET | MOSFET |
| Width | 4.83 mm | 4.83 mm | 9.65 mm |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| Fall Time | 25 ns | 25 ns | 48 ns |
| Product Type | MOSFET | MOSFET | MOSFET |
| Rise Time | 55 ns | 45 ns | 46 ns |
| Factory Pack Quantity | 1000 | 50 | 50 |
| Subcategory | MOSFETs | MOSFETs | MOSFETs |
| Typical Turn Off Delay Time | 9 ns | 13 ns | 50 ns |
| Typical Turn On Delay Time | 7 ns | 5 ns | 12 ns |
| Unit Weight | 0.084199 oz | 0.084199 oz | 0.139332 oz |
| Forward Transconductance Min | - | 2.7 S | 5.2 S |