| PartNumber | 0451.400NRL | 0451.400MR | 0451.400MRL |
| Description | Surface Mount Fuses 125V .400A V/FA NANO2 W/Au | Surface Mount Fuses 125V .4A W/SN Caps | Surface Mount Fuses 125V.4A |
| Manufacturer | Littelfuse Inc. | - | - |
| Product Category | Fuses | - | - |
| Color | - | - | - |
| Series | NANO2R 451 | - | - |
| Product | Surface Mount Fuse | - | - |
| Packaging | Tape & Reel (TR) Alternate Packaging | - | - |
| Current Rating | 400mA | - | - |
| Height | 2.69 mm | - | - |
| Length | 6.1 mm | - | - |
| Width | 2.69 mm | - | - |
| Package Case | 2-SMD, Square End Block | - | - |
| Operating Temperature | -55°C ~ 125°C | - | - |
| Mounting Type | Surface Mount | - | - |
| Size Dimension | 0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm) | - | - |
| Voltage Rating AC | 125 V | - | - |
| Voltage Rating DC | 125 VDC | - | - |
| Fuse Type | Board Mount (Cartridge Style Excluded) | - | - |
| Response Time | Fast | - | - |
| Approvals | CSA, UL | - | - |
| Breaking Capacity Rated Voltage | 50A | - | - |
| MeltingI2t | 0.0484 | - | - |
| Fuse Size Group | NANO | - | - |