| PartNumber | FQS4901TF | FQS4903TF | FQS4900TF |
| Description | MOSFET 400V Dual N-Ch QFET | MOSFET 500V Dual N-Ch QFET | MOSFET N-Ch 60V/ P-Ch 300V Dual QFET |
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Category | MOSFET | MOSFET | MOSFET |
| RoHS | Y | Y | Y |
| Technology | Si | Si | Si |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SO-8 | SO-8 | SO-8 |
| Number of Channels | 2 Channel | 2 Channel | 2 Channel |
| Transistor Polarity | N-Channel | N-Channel | N-Channel, P-Channel |
| Vds Drain Source Breakdown Voltage | 400 V | 500 V | 60 V, 300 V |
| Id Continuous Drain Current | 450 mA | 370 mA | 1.3 A |
| Rds On Drain Source Resistance | 4.2 Ohms | 6.2 Ohms | 550 mOhms, 15.5 Ohms |
| Vgs Gate Source Voltage | 25 V | 25 V | 20 V |
| Minimum Operating Temperature | - 55 C | - 55 C | - 55 C |
| Maximum Operating Temperature | + 150 C | + 150 C | + 150 C |
| Pd Power Dissipation | 2 W | 2 W | 2 W |
| Configuration | Dual | Dual | Dual |
| Channel Mode | Enhancement | Enhancement | Enhancement |
| Packaging | Reel | Reel | Reel |
| Height | 1.75 mm | 1.75 mm | 1.75 mm |
| Length | 4.9 mm | 4.9 mm | 4.9 mm |
| Series | FQS4901 | FQS4903 | FQS4900 |
| Transistor Type | 2 N-Channel | 2 N-Channel | 1 N-Channel, 1 P-Channel |
| Type | MOSFET | MOSFET | MOSFET |
| Width | 3.9 mm | 3.9 mm | 3.9 mm |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| Forward Transconductance Min | 1.7 S, 0.6 S | 0.13 S | 1.7 S, 0.6 S |
| Fall Time | 35 ns | 45 ns | 17 ns, 47 ns |
| Product Type | MOSFET | MOSFET | MOSFET |
| Rise Time | 20 ns | 20 ns | 21 ns, 25 ns |
| Factory Pack Quantity | 3000 | 3000 | 3000 |
| Subcategory | MOSFETs | MOSFETs | MOSFETs |
| Typical Turn Off Delay Time | 20 ns | 20 ns | 11 ns, 35 ns |
| Typical Turn On Delay Time | 5 ns | 5.5 ns | 5.7 ns, 10 ns |
| Part # Aliases | FQS4901TF_NL | - | - |
| Unit Weight | 0.008127 oz | 0.008127 oz | 0.008127 oz |