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| PartNumber | 30R250U | 30R250UU | 30R250UPR |
| Description | Resettable Fuses - PPTC 30V POLYFUSE 2.50A RADIAL LEADS | Resettable Fuses - PPTC 30V 2.50A RADIAL LEADS | |
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | - |
| Product Category | PTC Resettable Fuses | PTC Resettable Fuses | - |
| Series | POLYFUSER 30R | POLYFUSER 30R | - |
| Type | PolyFuse Resettable PTC | PolyFuse Resettable PTC | - |
| Packaging | Cut Tape (CT) Alternate Packaging | Bulk Alternate Packaging | - |
| Mounting Style | Through Hole | Through Hole | - |
| Termination Style | Radial | Radial | - |
| Operating Temperature Range | - 40 C to + 85 C | - 40 C to + 85 C | - |
| Height | 3 mm | 3 mm | - |
| Length | 18.3 mm | 18.3 mm | - |
| Width | 11.4 mm | 11.4 mm | - |
| Package Case | Radial, Disc | Radial, Disc | - |
| Current Max | 40A | 40A | - |
| Current Hold Ih Max | 2.5A | 2.5A | - |
| Lead Spacing | 5.1 mm | 5.1 mm | - |
| Voltage Max | 30V | 30V | - |
| Current Trip It | 5A | 5A | - |
| R Min Max | 0.020 ~ 0.070 Ohm | 0.020 ~ 0.070 Ohm | - |
| Time to Trip | 10.3s | 10.3s | - |
| Hold Current | 2.5 A | 2.5 A | - |
| Maximum Voltage | 30 VDC | 30 VDC | - |
| Trip Current | 5 A | 5 A | - |
| Current Rating Max | 40 A | 40 A | - |
| Resistance | 0.07 Ohms | 0.07 Ohms | - |
| Pd Power Dissipation | 1.2 W | 1.2 W | - |