| PartNumber | IRFU420APBF | IRFU420PBF | IRFU420 |
| Description | MOSFET N-Chan 500V 3.3 Amp | MOSFET N-Chan 500V 2.4 Amp | MOSFET N-CH 500V 2.4A I-PAK |
| Manufacturer | Vishay | Vishay | IR |
| Product Category | MOSFET | MOSFET | FETs - Single |
| RoHS | E | E | - |
| Technology | Si | Si | - |
| Mounting Style | Through Hole | - | - |
| Package / Case | TO-251-3 | - | - |
| Packaging | Tube | Tube | - |
| Height | 6.22 mm | - | - |
| Length | 6.73 mm | - | - |
| Series | IRFR/U | IRFR/U | - |
| Width | 2.39 mm | - | - |
| Brand | Vishay / Siliconix | Vishay / Siliconix | - |
| Product Type | MOSFET | MOSFET | - |
| Factory Pack Quantity | 75 | 75 | - |
| Subcategory | MOSFETs | MOSFETs | - |
| Unit Weight | 0.011640 oz | 0.011640 oz | - |