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| PartNumber | RUSBF120 | RUSBF120-2 | RUSBF120 6V 1.2A |
| Description | Resettable Fuses - PPTC Radial Lead 1.2A 6V 40A Imax | Resettable Fuses - PPTC Radial Lead 1.2A 6V 40A Imax | |
| Manufacturer | Littelfuse | TE Connectivity Raychem Circuit Protection | - |
| Product Category | Resettable Fuses - PPTC | PTC Resettable Fuses | - |
| RoHS | Y | - | - |
| Series | RUSBF | PolySwitchR, RUSBF | - |
| Mounting Style | Through Hole | Through Hole | - |
| Termination Style | Radial | Radial | - |
| Hold Current | 1.2 A | 1.2 A | - |
| Maximum Voltage | 6 V | 6 VDC | - |
| Trip Current | 2 A | 2 A | - |
| Current Rating Max | 40 A | - | - |
| Resistance | 140 mOhms | 0.14 Ohms | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Bulk | Tape & Reel (TR) Alternate Packaging | - |
| Diameter | 6.9 mm | 6.9 mm | - |
| Type | PolySwitch Resettable Fuses | PolySwitch Resettable Fuses | - |
| Brand | Littelfuse | - | - |
| Pd Power Dissipation | 600 mW | - | - |
| Product Type | Resettable Fuses - PPTC | - | - |
| Factory Pack Quantity | 500 | - | - |
| Subcategory | PPTC Resettable Fuses | - | - |
| Tradename | PolySwitch | - | - |
| Part # Aliases | F87144-000 RF3386-000 | - | - |
| Unit Weight | 0.003915 oz | - | - |
| Part Aliases | - | A02666-000 RF3387-000 | - |
| Operating Temperature Range | - | - 40 C to + 85 C | - |
| Height | - | 3.1 mm | - |
| Length | - | 11.7 mm | - |
| Package Case | - | Radial | - |
| Current Max | - | 40A | - |
| Current Hold Ih Max | - | 1.2A | - |
| Lead Spacing | - | 5.9 mm | - |
| Voltage Max | - | 6V | - |
| Current Trip It | - | 2A | - |
| R Min Max | - | 0.070 ~ 0.140 Ohm | - |
| Time to Trip | - | 0.5s | - |
| Current Rating Max | - | 40 A | - |
| Pd Power Dissipation | - | 600 mW | - |