| PartNumber | RXEF185-1 | RXEF185 | RXEF185-2 |
| Description | Resettable Fuses - PPTC Polyswitch 3.7A 1 inch lead | Resettable Fuses - PPTC Radial Lead 1.85A 72V 40A Imax | Resettable Fuses - PPTC Radial Lead 1.85A 72V 40A Imax |
| Manufacturer | Littelfuse | - | TE Connectivity Raychem Circuit Protection |
| Product Category | Resettable Fuses - PPTC | - | PTC Resettable Fuses |
| RoHS | Y | - | - |
| Series | RXEF | - | PolySwitchR |
| Mounting Style | Through Hole | - | Through Hole |
| Termination Style | Radial | - | Radial |
| Hold Current | 1.85 A | - | 1.85 A |
| Maximum Voltage | 72 V | - | 72 VDC |
| Trip Current | 3.7 A | - | 3.7 A |
| Current Rating Max | - | - | - |
| Resistance | 190 mOhms | - | 0.19 Ohms |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Bulk | - | Cut Tape (CT) Alternate Packaging |
| Type | PolySwitch Resettable Fuses | - | PolySwitch Resettable Fuses |
| Brand | Littelfuse | - | - |
| Pd Power Dissipation | 2.1 W | - | - |
| Product Type | Resettable Fuses - PPTC | - | - |
| Factory Pack Quantity | 500 | - | - |
| Subcategory | PPTC Resettable Fuses | - | - |
| Tradename | PolySwitch | - | - |
| Part # Aliases | RF2709-000 | - | - |
| Part Aliases | - | - | F01480-000 RF2698-000 |
| Operating Temperature Range | - | - | - 40 C to + 85 C |
| Package Case | - | - | Radial, Disc |
| Current Max | - | - | 40A |
| Current Hold Ih Max | - | - | 1.85A |
| Diameter | - | - | 17.5 mm |
| Voltage Max | - | - | 72V |
| Current Trip It | - | - | 3.7A |
| R Min Max | - | - | 0.080 ~ 0.120 Ohm |
| Time to Trip | - | - | 12.6s |
| Current Rating Max | - | - | 40 A |
| Pd Power Dissipation | - | - | 2.1 W |