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| PartNumber | 1210L400SLWR | 1210L450SLWR | 1210L400SL |
| Description | Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 4A | Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 4.50A | Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 4A |
| Manufacturer | Littelfuse | Littelfuse | - |
| Product Category | Resettable Fuses - PPTC | Resettable Fuses - PPTC | - |
| RoHS | Y | Y | - |
| Series | LoRho SMD | LoRho SMD | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Termination Style | SMD/SMT | SMD/SMT | - |
| Hold Current | 4 A | 4.5 A | - |
| Maximum Voltage | 6 V | 6 V | - |
| Trip Current | 8 A | 9 A | - |
| Current Rating Max | 50 A | 50 A | - |
| Resistance | 14 mOhms | 14 mOhms | - |
| Package / Case | 1210 (3225 metric) | 1210 (3225 metric) | - |
| Packaging | Reel | Reel | - |
| Type | PolyFuse Resettable PTC | PolyFuse Resettable PTC | - |
| Brand | Littelfuse | Littelfuse | - |
| Pd Power Dissipation | 1 W | 1 W | - |
| Product Type | Resettable Fuses - PPTC | Resettable Fuses - PPTC | - |
| Factory Pack Quantity | 3000 | 3000 | - |
| Subcategory | PPTC Resettable Fuses | PPTC Resettable Fuses | - |
| Tradename | LoRho | LoRho | - |
| Minimum Operating Temperature | - | - 40 C | - |
| Maximum Operating Temperature | - | + 85 C | - |