| PartNumber | 250R120-R1ZR | 250R120-R1U | 250R120-R2U |
| Description | Resettable Fuses - PPTC PTC 60V/250V.120A POLY TELECOM | Resettable Fuses - PPTC PTC 60V/250V.120A POLY TELECOM | Resettable Fuses - PPTC PTC 60V/250V.120A POLY TELECOM |
| Manufacturer | Littelfuse | Littelfuse | - |
| Product Category | Resettable Fuses - PPTC | Resettable Fuses - PPTC | - |
| RoHS | Y | Y | - |
| Series | 250R | 250R | - |
| Mounting Style | Through Hole | Through Hole | - |
| Termination Style | Radial | Radial | - |
| Hold Current | 120 mA | 120 mA | - |
| Maximum Voltage | 60 V | 60 V | - |
| Trip Current | 240 mA | 240 mA | - |
| Current Rating Max | 3 A | 3 A | - |
| Resistance | 16 Ohms | 16 Ohms | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Ammo Pack | Bulk | - |
| Type | PolyFuse Resettable PTC | PolyFuse Resettable PTC | - |
| Brand | Littelfuse | Littelfuse | - |
| Product Type | Resettable Fuses - PPTC | Resettable Fuses - PPTC | - |
| Factory Pack Quantity | 1200 | 500 | - |
| Subcategory | PPTC Resettable Fuses | PPTC Resettable Fuses | - |
| Tradename | POLYFUSE | POLYFUSE | - |