| PartNumber | SMDC030F-2 | SMDC075F-2 | SMDC050F-2 |
| Description | Resettable Fuses - PPTC SMDC030F-2 | Resettable Fuses - PPTC SMDC075F-2 | Resettable Fuses - PPTC SMDC050F-2 |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse |
| Product Category | Resettable Fuses - PPTC | Resettable Fuses - PPTC | Resettable Fuses - PPTC |
| RoHS | Y | Y | Y |
| Series | SMDC | SMDC | SMDC |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Termination Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Hold Current | 0.3 A | 0.75 A | 0.5 A |
| Maximum Voltage | 60 V | 33 V | 60 V |
| Trip Current | 0.6 A | 1.5 A | 1 A |
| Current Rating Max | 10 A | 40 A | 10 A |
| Resistance | 3.4 Ohms | 610 mOhms | 1.2 Ohms |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Reel | Reel | Reel |
| Brand | Littelfuse | Littelfuse | Littelfuse |
| Pd Power Dissipation | 1.5 W | 1.5 W | 1.5 W |
| Product Type | Resettable Fuses - PPTC | Resettable Fuses - PPTC | Resettable Fuses - PPTC |
| Factory Pack Quantity | 4000 | 4000 | 4000 |
| Subcategory | PPTC Resettable Fuses | PPTC Resettable Fuses | PPTC Resettable Fuses |
| Tradename | PolySwitch | PolySwitch | PolySwitch |
| Part # Aliases | RF4438-000 | RF4441-000 | RF4439-000 |
| Moisture Sensitive | - | - | Yes |