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| PartNumber | 72R030XU | 72R030XPR | 72R030X |
| Description | Resettable Fuses - PPTC PTC POLYFUSE RADIAL 72V .300A | Resettable Fuses - PPTC PTC POLYFUSE RADIAL 72V .300A | |
| Manufacturer | Littelfuse | Littelfuse | - |
| Product Category | Resettable Fuses - PPTC | Resettable Fuses - PPTC | - |
| RoHS | Y | Y | - |
| Series | 72R | 72R | - |
| Mounting Style | Through Hole | Through Hole | - |
| Termination Style | Radial | Radial | - |
| Hold Current | 300 mA | 300 mA | - |
| Maximum Voltage | 72 V | 72 V | - |
| Trip Current | 600 mA | 600 mA | - |
| Current Rating Max | 40 A | 40 A | - |
| Resistance | 2.1 Ohms | 2.1 Ohms | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Bulk | Ammo Pack | - |
| Type | PolyFuse Resettable PTC | PolyFuse Resettable PTC | - |
| Brand | Littelfuse | Littelfuse | - |
| Product Type | Resettable Fuses - PPTC | Resettable Fuses - PPTC | - |
| Factory Pack Quantity | 500 | 2000 | - |
| Subcategory | PPTC Resettable Fuses | PPTC Resettable Fuses | - |
| Tradename | POLYFUSE | POLYFUSE | - |
| Lead Spacing | - | 5.1 mm | - |
| Diameter | - | 7.4 mm | - |
| Height | - | 3.1 mm | - |
| Length | - | 12.7 mm | - |
| Pd Power Dissipation | - | 490 mW | - |