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| PartNumber | 0451001 | 0451001.MR | 0451001.MRL |
| Description | Surface Mount Fuses 125V 1A W/SN Caps | Surface Mount Fuses 125V 1A | |
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Category | Fuses | Fuses | Fuses |
| Color | - | - | - |
| Series | NANO2R 451 | NANO2R 451 | NANO2R 451 |
| Product | Surface Mount Fuse | Surface Mount Fuse | Surface Mount Fuse |
| Packaging | Tape & Reel (TR) Alternate Packaging | Tape & Reel (TR) Alternate Packaging | Digi-ReelR Alternate Packaging |
| Current Rating | 1A | 1A | 1A |
| Operating Temperature Range | - 55 C to + 125 C | - 55 C to + 125 C | - 55 C to + 125 C |
| Height | 2.69 mm | 2.69 mm | 2.69 mm |
| Length | 6.1 mm | 6.1 mm | 6.1 mm |
| Width | 2.69 mm | 2.69 mm | 2.69 mm |
| Package Case | 2-SMD, Square End Block | 2-SMD, Square End Block | 2-SMD, Square End Block |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Size Dimension | 0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm) | 0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm) | 0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm) |
| Voltage Rating AC | 125 V | 125 V | 125 V |
| Voltage Rating DC | 125 VDC | 125 VDC | 125 VDC |
| Fuse Type | Board Mount (Cartridge Style Excluded) | Board Mount (Cartridge Style Excluded) | Board Mount (Cartridge Style Excluded) |
| Response Time | Fast | Fast | Fast |
| Approvals | CSA, PSE, UL | CSA, PSE, UL | CSA, PSE, UL |
| Breaking Capacity Rated Voltage | 50A | 50A | 50A |
| MeltingI2t | 0.459 | 0.459 | 0.459 |
| Resistance | 0.153 Ohms | 0.153 Ohms | 0.153 Ohms |
| Fuse Size Group | NANO | NANO | NANO |
| Interrupt Rating | 50 Amps at 125 VoltsAC/DC | 50 Amps at 125 VoltsAC/DC | 50 Amps at 125 VoltsAC/DC |