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| PartNumber | RUEF500K-AP | RUEF500K-2 | RUEF500K |
| Description | Resettable Fuses - PPTC 5A 30V 100A Imax | Resettable Fuses - PPTC 5A 30V 100A Imax | Resettable Fuses - PPTC 5A 30V 40A Imax |
| Manufacturer | Littelfuse | Littelfuse | TE Connectivity Raychem Circuit Protection |
| Product Category | Resettable Fuses - PPTC | Resettable Fuses - PPTC | PTC Resettable Fuses |
| RoHS | Y | Y | - |
| Series | RUEF | RUEF | PolySwitchR, RUEF |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Termination Style | Radial | Radial | Radial |
| Hold Current | 5 A | 5 A | 5 A |
| Maximum Voltage | 30 V | 30 V | 30 VDC |
| Trip Current | 10 A | 10 A | 10 A |
| Current Rating Max | 100 A | 100 A | - |
| Resistance | 50 mOhms | 50 mOhms | 0.05 Ohms |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Lead Spacing | 10.9 mm | 10.9 mm | - |
| Packaging | Reel | Reel | Bulk Alternate Packaging |
| Height | 3 mm | 3 mm | 24.1 mm |
| Length | 24.1 mm | 24.1 mm | 14 mm |
| Type | PolySwitch Resettable Fuses | PolySwitch Resettable Fuses | PolySwitch Resettable Fuses |
| Width | 14 mm | 14 mm | - |
| Brand | Littelfuse | Littelfuse | - |
| Pd Power Dissipation | 3 W | 3 W | - |
| Product Type | Resettable Fuses - PPTC | Resettable Fuses - PPTC | - |
| Factory Pack Quantity | 1000 | 1500 | - |
| Subcategory | PPTC Resettable Fuses | PPTC Resettable Fuses | - |
| Tradename | PolySwitch | PolySwitch | - |
| Part # Aliases | A71439-000 RF2724-000 | RF0796-000 RF2758-000 | - |
| Part Aliases | - | - | A68011-000 RF2562-000 |
| Operating Temperature Range | - | - | - 40 C to + 85 C |
| Package Case | - | - | Radial, Disc |
| Current Max | - | - | 100A |
| Current Hold Ih Max | - | - | 5A |
| Voltage Max | - | - | 30V |
| Current Trip It | - | - | 10A |
| R Min Max | - | - | 0.010 ~ 0.050 Ohm |
| Time to Trip | - | - | 14.5s |
| Current Rating Max | - | - | 100 A |
| Pd Power Dissipation | - | - | 3.23 W |