| PartNumber | SMD1812P050TSA | SMD1812P050TFA | SMD1812P075TF/24A |
| Description | Resettable Fuses - PPTC | Resettable Fuses - PPTC 15V .5A 1812 RESETTABLE FUSES | Resettable Fuses - PPTC |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse |
| Product Category | Resettable Fuses - PPTC | Resettable Fuses - PPTC | Resettable Fuses - PPTC |
| RoHS | N | Y | Y |
| Series | SMD-P | SMD-P | SMD-P |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Termination Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Hold Current | 500 mA | 500 mA | 750 mA |
| Maximum Voltage | 15 V | 15 V | 24 V |
| Trip Current | 1 A | 1 A | 1.5 A |
| Current Rating Max | 40 A | 40 A | 40 A |
| Resistance | 1 Ohms | 1 Ohms | 290 mOhms |
| Package / Case | 1812 (4532 metric) | 1812 (4532 metric) | 1812 (4532 metric) |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Length | 4.73 mm | 4.73 mm | 4.73 mm |
| Type | PolyFuse Resettable Fuses | PolyFuse Resettable Fuses | PolyFuse Resettable Fuses |
| Width | 3.41 mm | 3.41 mm | 3.41 mm |
| Brand | Littelfuse | Littelfuse | Littelfuse |
| Product Type | Resettable Fuses - PPTC | Resettable Fuses - PPTC | Resettable Fuses - PPTC |
| Subcategory | PPTC Resettable Fuses | PPTC Resettable Fuses | PPTC Resettable Fuses |
| Tradename | POLY-FUSE | POLY-FUSE | POLY-FUSE |
| Packaging | - | Reel | Reel |
| Factory Pack Quantity | - | 2000 | 1500 |