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| PartNumber | RUEF250U | RUEF250U-0.148 | RUEF250U-2 |
| Description | Resettable Fuses - PPTC 2.5A 30V 100A Imax UNCOATED | Resettable Fuses - PPTC 30V 2.5A-HD 40A MAX (R) | Resettable Fuses - PPTC 2.5A 30V 40A Imax |
| Manufacturer | Littelfuse | TE Connectivity / Raychem | - |
| Product Category | Resettable Fuses - PPTC | PTC Resettable Fuses | - |
| RoHS | Y | - | - |
| Series | RUEF | RUEF | - |
| Mounting Style | Through Hole | Through Hole | - |
| Termination Style | Radial | Radial | - |
| Hold Current | 2.5 A | 2.5 A | - |
| Maximum Voltage | 30 V | 30 VDC | - |
| Trip Current | 4.9 A | 4.9 A | - |
| Current Rating Max | 100 A | - | - |
| Resistance | 80 mOhms | 0.08 Ohms | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Lead Spacing | 5 mm | 5 mm | - |
| Packaging | Bulk | Bulk | - |
| Height | 2.8 mm | 2.8 mm | - |
| Length | 16.3 mm | 16.3 mm | - |
| Type | PolySwitch Resettable Fuses | PolySwitch Resettable Fuses | - |
| Width | 8.1 mm | 8.1 mm | - |
| Brand | Littelfuse | - | - |
| Pd Power Dissipation | 1.75 W | - | - |
| Product Type | Resettable Fuses - PPTC | - | - |
| Factory Pack Quantity | 500 | - | - |
| Subcategory | PPTC Resettable Fuses | - | - |
| Tradename | PolySwitch | - | - |
| Part # Aliases | E17350-000 | - | - |
| Part Aliases | - | C61007-000 | - |
| Operating Temperature Range | - | - 40 C to + 85 C | - |
| Current Rating Max | - | 100 A | - |
| Pd Power Dissipation | - | 1.75 W | - |