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| Part Number | 0451012.MRL | 0451012.MRSN | 0451012.NR | 0451012.MR | 0451012.NRL |
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Package/Case | |||||
| Series | NANO²® 451 | NANO²® 451 | NANO²® 451 | NANO²® 451 | NANO²® 451 |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) |
| Product Status | Active | Active | Obsolete | Obsolete | Active |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Fuse Type | Board Mount (Cartridge Style Excluded) | Board Mount (Cartridge Style Excluded) | Board Mount (Cartridge Style Excluded) | Board Mount (Cartridge Style Excluded) | Board Mount (Cartridge Style Excluded) |
| Current Rating (Amps) | 12 A | 12 A | 12 A | 12 A | 12 A |
| Voltage Rating - AC | 65 V | 125 V | 65 V | 65 V | 65 V |
| Voltage Rating - DC | 65 V | - | 65 V | 65 V | 65 V |
| Response Time | Fast Blow | Fast Blow | Fast Blow | Fast Blow | Fast Blow |
| Breaking Capacity @ Rated Voltage | 50A | 35A | 50A | 50A | 50A |
| Melting I²t | 47.97 | 47.97 | 47.97 | 47.97 | 47.97 |
| Approval Agency | CSA, UL | CSA, METI, UR | CSA, UL | CSA, UL | CSA, UL |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C |
| Color | - | - | - | - | - |
| 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) | 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) |
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