| PartNumber | RXEF050-1 | RXEF050-2 | RXEF050 |
| Description | Resettable Fuses - PPTC .5A 72V 40A Imax | Resettable Fuses - PPTC Radial Lead .5A 72V 40A Imax | Resettable Fuses - PPTC Radial Lead .5A 72V 40A Imax |
| Manufacturer | Littelfuse | TE Connectivity Raychem Circuit Protection | TE Connectivity Raychem Circuit Protection |
| Product Category | Resettable Fuses - PPTC | PTC Resettable Fuses | PTC Resettable Fuses |
| RoHS | Y | - | - |
| Series | RXEF | PolySwitchR, RXEF | PolySwitchR, RXEF |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Termination Style | Radial | Radial | Radial |
| Hold Current | 500 mA | 0.5 A | 0.5 A |
| Maximum Voltage | 72 V | 72 VDC | 72 VDC |
| Trip Current | 1 A | 1 A | 1 A |
| Current Rating Max | 40 A | - | - |
| Resistance | 1.17 Ohms | 1.17 Ohms | 1.17 Ohms |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Lead Spacing | 5.8 mm | 5.8 mm | 5.8 mm |
| Packaging | Bulk | Cut Tape (CT) Alternate Packaging | Bulk Alternate Packaging |
| Diameter | 7.9 mm | 7.9 mm | 7.9 mm |
| Height | 3 mm | 3 mm | 3 mm |
| Length | 13.7 mm | 13.7 mm | 13.7 mm |
| Type | PolySwitch Resettable Fuses | PolySwitch Resettable Fuses | PolySwitch Resettable Fuses |
| Brand | Littelfuse | - | - |
| Pd Power Dissipation | 770 mW | - | - |
| Product Type | Resettable Fuses - PPTC | - | - |
| Factory Pack Quantity | 500 | - | - |
| Subcategory | PPTC Resettable Fuses | - | - |
| Tradename | PolySwitch | - | - |
| Part # Aliases | RF0616-000 RF2676-000 | - | - |
| Part Aliases | - | F94009-000 RF2630-000 | A51391-000 RF2567-000 |
| Operating Temperature Range | - | - 40 C to + 85 C | - 40 C to + 85 C |
| Package Case | - | Radial, Disc | Radial, Disc |
| Current Max | - | 40A | 40A |
| Current Hold Ih Max | - | 1A | 1A |
| Voltage Max | - | 72V | 72V |
| Current Trip It | - | 500mA | 500mA |
| R Min Max | - | 0.500 ~ 0.00117 Ohm | 0.500 ~ 0.00117 Ohm |
| Time to Trip | - | 4s | 4s |
| Current Rating Max | - | 40 A | 40 A |
| Pd Power Dissipation | - | 770 mW | 770 mW |