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| PartNumber | RUSBF155-AP | RUSBF155 | RUSBF155-2 |
| Description | Resettable Fuses - PPTC 6V 40A 0.60W PolySwitch Reset Dev | Resettable Fuses - PPTC Radial Lead 1.55A 6V 40A Imax | Resettable Fuses - PPTC Radial Lead 1.55A 6V 40A Imax |
| Manufacturer | Littelfuse | Littelfuse | TE Connectivity Raychem Circuit Protection |
| Product Category | Resettable Fuses - PPTC | Resettable Fuses - PPTC | PTC Resettable Fuses |
| RoHS | Y | Y | - |
| Series | RUSBF | RUSBF | PolySwitchR |
| Current Rating Max | - | 40 A | - |
| Packaging | Reel | Bulk | Cut Tape (CT) |
| Brand | Littelfuse | Littelfuse | - |
| Product Type | Resettable Fuses - PPTC | Resettable Fuses - PPTC | - |
| Factory Pack Quantity | 2000 | 500 | - |
| Subcategory | PPTC Resettable Fuses | PPTC Resettable Fuses | - |
| Tradename | PolySwitch | PolySwitch | - |
| Part # Aliases | RF1445-000 RF3393-000 | F11973-000 RF3391-000 | - |
| Mounting Style | - | Through Hole | Through Hole |
| Termination Style | - | Radial | Radial |
| Hold Current | - | 1.55 A | 1.55 A |
| Maximum Voltage | - | 6 V | 6 VDC |
| Trip Current | - | 2.65 A | 2.65 A |
| Resistance | - | 100 mOhms | 0.1 Ohms |
| Minimum Operating Temperature | - | - 40 C | - |
| Maximum Operating Temperature | - | + 85 C | - |
| Diameter | - | 6.9 mm | 6.9 mm |
| Type | - | PolySwitch Resettable Fuses | PolySwitch Resettable Fuses |
| Pd Power Dissipation | - | 600 mW | - |
| Part Aliases | - | - | F04073-000 RF3392-000 |
| Operating Temperature Range | - | - | - 40 C to + 85 C |
| Package Case | - | - | Radial, Disc |
| Current Max | - | - | 40A |
| Current Hold Ih Max | - | - | 1.55A |
| Voltage Max | - | - | 6V |
| Current Trip It | - | - | 2.65A |
| R Min Max | - | - | 0.040 ~ 0.060 Ohm |
| Time to Trip | - | - | 2.2s |
| Current Rating Max | - | - | 40 A |
| Pd Power Dissipation | - | - | 600 mW |