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| PartNumber | RXEF040S | RXEF040S-2 | RXEF040S-1 |
| Description | Resettable Fuses - PPTC Radial Lead .4A 72V 40A Imax | Resettable Fuses - PPTC 72V 40A 0.86Ohms | Resettable Fuses - PPTC Radial Lead .4A 72V 40A Imax |
| Manufacturer | Littelfuse | - | TE Connectivity / Raychem |
| Product Category | Resettable Fuses - PPTC | - | PTC Resettable Fuses |
| RoHS | Y | - | - |
| Series | RXEF | - | RXEF |
| Mounting Style | Through Hole | - | Through Hole |
| Termination Style | Radial | - | Radial |
| Hold Current | 400 mA | - | 0.4 A |
| Maximum Voltage | 72 V | - | 72 VDC |
| Trip Current | 800 mA | - | 0.8 A |
| Current Rating Max | 40 A | - | - |
| Resistance | 1.29 Ohms | - | 1.29 Ohms |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Lead Spacing | 5.8 mm | - | - |
| Packaging | Bulk | - | Reel |
| Diameter | 7.6 mm | - | 7.6 mm |
| Height | 3 mm | - | - |
| Length | 11 mm | - | - |
| Type | PolySwitch Resettable Fuses | - | PolySwitch Resettable Fuses |
| Brand | Littelfuse | - | - |
| Pd Power Dissipation | 560 mW | - | - |
| Product Type | Resettable Fuses - PPTC | - | - |
| Factory Pack Quantity | 500 | - | - |
| Subcategory | PPTC Resettable Fuses | - | - |
| Tradename | PolySwitch | - | - |
| Part # Aliases | E76804-000 RF2663-000 | - | - |
| Operating Temperature Range | - | - | - 40 C to + 85 C |
| Current Rating Max | - | - | 40 A |