Radial PTC resettable fuse with 3A hold current and 6A trip current, designed for 72V DC and 60V AC operation. Features a 40A maximum current rating, 2.8W power dissipation, and 0.04 Ohm resistance. This through-hole mount component has a 19.8-second time to trip and operates within a -40°C to 85°C temperature range. Approvals include UL, CSA, and TUV, with UL94 V-0 flammability rating and RoHS compliance.
PackageRadial
Resistance60mR
Voltage Rating72V
Current Rating40A
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Technical Specifications
Bourns MF-RX300/72-0 technical specifications.
General
| Approvals | UL, CSA, TUV |
| Body Height | 26.67mm |
| Body Length | 20.67mm |
| Body Material | Polymer, Epoxy |
| Package/Case | Radial |
| Current Rating | 40A |
| Flammability Rating | UL94 V-0 |
| Height | 3.1mm |
| Hold Current | 3A |
| Lead Diameter | 0.81mm |
| Lead Free | Lead Free |
| Lead Length | 7.6mm |
| Lead Pitch | 10.2mm |
| Length | 34.27mm |
| Max Current Rating | 40A |
| Max Operating Temperature | 85°C |
| Min Operating Temperature | -40°C |
| Mount | Through Hole, PCB |
| Operating Supply Voltage | 72V |
| Package Quantity | 500 |
| Packaging | Bulk |
| Power Dissipation | 2.8W |
| Radiation Hardening | No |
| Reach SVHC Compliant | No |
| Resistance | 60mR |
| RoHS Compliant | Yes |
| Series | MF-RX/72 |
| Termination | Radial |
| Thickness | 3.1mm |
| Time to Trip | 19.8s |
| Trip Current | 6A |
| Voltage Rating | 72V |
| Voltage Rating (AC) | 60V |
| DC Rated Voltage | 72V |
| Width | 20.67mm |
| Wire/Cable Diameter | 0.81mm |
Compliance
| RoHS | Compliant |
Datasheet
Bourns MF-RX300/72-0 Datasheet
Download the complete datasheet for Bourns MF-RX300/72-0 to view detailed technical specifications.
This datasheet cannot be embedded due to technical restrictions.
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