The 1245HC80-RTR is a high-current, fast-acting surface mount brick fuse in a 4818 (1245 metric) size package. It features a ceramic tube and silver-plated brass end cap construction designed for primary and secondary circuit protection in high-power applications such as energy storage systems, e-bikes, and server power supplies. It is designed to UL248-1/14 standards and offers a compact footprint to conserve board space.
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Eaton 1245HC80-RTR technical specifications.
| Current Rating | 80A |
| Voltage Rating (AC) | 125V |
| Voltage Rating (DC) | 72V |
| Interrupting Rating @ 125Vac | 500A |
| Interrupting Rating @ 72Vdc | 1000A |
| Typical Resistance | 0.44mΩ |
| Typical Pre-arcing I²t | 1700A²s |
| Operating Temperature | -55 to +125°C |
| Dimensions | 12.30 x 4.50 x 4.50mm |
| RoHS | Compliant |
| Halogen Free | Yes |
| Agency Approvals | cURus, UL (File E91958) |
| Moisture Sensitivity Level | MSL 1 |
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