| PartNumber | RKEF050 | RKEF065 | RKEF050-AP |
| Description | Resettable Fuses - PPTC 60V 40A 1.00W Radial-leaded Device | Resettable Fuses - PPTC 60V 40A 1.25W Radial-leaded Device | Resettable Fuses - PPTC 60V 40A Ammo Pack Radial-leaded Device |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse |
| Product Category | Resettable Fuses - PPTC | Resettable Fuses - PPTC | Resettable Fuses - PPTC |
| RoHS | Y | Y | Y |
| Series | RKEF | RKEF | RKEF |
| Mounting Style | Through Hole | Through Hole | - |
| Termination Style | Radial | Radial | - |
| Hold Current | 500 mA | 650 mA | - |
| Maximum Voltage | 60 V | 60 V | - |
| Trip Current | 1 A | 1.3 A | - |
| Current Rating Max | 40 A | - | - |
| Resistance | 900 mOhms | 450 mOhms | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Lead Spacing | 5.84 mm | - | - |
| Packaging | Bulk | Bulk | Reel |
| Height | 3.56 mm | - | - |
| Length | 11.43 mm | - | - |
| Type | PolySwitch Resettable Fuses | - | - |
| Width | 7.1 mm | - | - |
| Brand | Littelfuse | Littelfuse | Littelfuse |
| Pd Power Dissipation | 1 W | 1.25 W | - |
| Product Type | Resettable Fuses - PPTC | Resettable Fuses - PPTC | Resettable Fuses - PPTC |
| Factory Pack Quantity | 500 | 500 | 2000 |
| Subcategory | PPTC Resettable Fuses | PPTC Resettable Fuses | PPTC Resettable Fuses |
| Tradename | PolySwitch | PolySwitch | PolySwitch |
| Part # Aliases | RF0853-000 RF3054-000 | RF0870-000 RF3363-000 | RF1454-000 RF3361-000 |
| Unit Weight | 0.005855 oz | 0.006420 oz | 0.005855 oz |