| PartNumber | TRF250-120U-2 | TRF250-120U | TRF250-120UA |
| Description | Resettable Fuses - PPTC .12A 250V | Resettable Fuses - PPTC .12A 60Vdc MAX 250Vrms | Resettable Fuses - PPTC 60V 3A 10Ohms |
| 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 | 120 mA | 120 mA | 120 mA |
| Maximum Voltage | 60 V | 60 V | 60 V |
| Trip Current | 240 mA | 240 mA | 240 mA |
| Current Rating Max | - | 3 A | - |
| Resistance | 16 Ohms | 16 Ohms | 10 Ohms |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Reel | Bulk | Bulk |
| Height | 10 mm | 3.8 mm | 4.7 mm |
| Length | 6 mm | 10 mm | 10 mm |
| Type | PolySwitch Resettable Fuses | PolySwitch Resettable Fuses | PolySwitch Resettable Fuses |
| Width | 3.8 mm | 6 mm | 6 mm |
| 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 | RF0150-000 | RF0017-000 | RF0543-000 |
| Lead Spacing | - | 5 mm | 5 mm |