| PartNumber | TRF250-145U-2 | TRF250-145US | TRF250-145U |
| Description | Resettable Fuses - PPTC | Resettable Fuses - PPTC | Resettable Fuses - PPTC .145A 60VDC MAX 250Vrms MAX |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse |
| Product Category | Resettable Fuses - PPTC | Resettable Fuses - PPTC | Resettable Fuses - PPTC |
| RoHS | Y | Y | Y |
| Series | TRF250 | TRF250 | TRF250 |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Termination Style | Radial | Radial | Radial |
| Hold Current | 145 mA | 145 mA | 145 mA |
| Maximum Voltage | 60 V | 60 V | 60 V |
| Trip Current | 290 mA | 290 mA | 290 mA |
| Current Rating Max | 3 A | 3 A | 3 A |
| Resistance | 12 Ohms | 12 Ohms | 14 Ohms |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Type | PolySwitch Resettable Fuses | PolySwitch Resettable Fuses | PolySwitch Resettable Fuses |
| Brand | Littelfuse | Littelfuse | Littelfuse |
| Pd Power Dissipation | 1 W | - | 1 W |
| Product Type | Resettable Fuses - PPTC | Resettable Fuses - PPTC | Resettable Fuses - PPTC |
| Factory Pack Quantity | 1500 | 500 | 500 |
| Subcategory | PPTC Resettable Fuses | PPTC Resettable Fuses | PPTC Resettable Fuses |
| Tradename | PolySwitch | PolySwitch | PolySwitch |
| Part # Aliases | RF0036-000 | RF0029-000 | RF0027-000 |
| Packaging | - | Bulk | Bulk |
| Lead Spacing | - | - | 5 mm |
| Height | - | - | 3.8 mm |
| Length | - | - | 10 mm |
| Width | - | - | 6 mm |