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| PartNumber | ROV20E221K | ROV20E221K-S | ROV20E221K-2 |
| Description | Varistors 20mm 140V +-10% Extra HIgh Surge | Varistors 20mm 140V +-10% Extra HIgh Surge | Varistors 20mm 220V +-10% Extra HiSurge Series |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse |
| Product Category | Varistors | Varistors | Varistors |
| RoHS | Y | Y | Y |
| Series | ROV20E | ROV20E | ROV20E |
| Product | MOV | MOV | MOV |
| Mounting Style | PCB Mount | PCB Mount | PCB Mount |
| Termination Style | Radial | Radial | Radial |
| Voltage Rating AC | 140 VAC | 140 VAC | 140 VAC |
| Voltage Rating DC | 220 VDC | 220 VDC | 220 VDC |
| Clamping Voltage | 360 V | 360 V | 360 V |
| Diameter | 20 mm | 20 mm | 20 mm |
| Peak Surge Current | 12.5 kA | 12.5 kA | 12.5 kA |
| Surge Energy Rating | 186 J | 186 J | 186 J |
| Capacitance | 1600 pF | 1600 pF | 1600 pF |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Bulk | Bulk | Bulk |
| Tolerance | 10 % | 10 % | 10 % |
| Type | Extra High Surge Metal Oxide Varistors | Extra High Surge Metal Oxide Varistors | Extra High Surge Metal Oxide Varistors |
| Brand | Littelfuse | Littelfuse | Littelfuse |
| Product Type | Varistors | Varistors | Varistors |
| Factory Pack Quantity | 750 | 750 | 500 |
| Subcategory | Varistors | Varistors | Varistors |
| Part # Aliases | E31056-000 | A67860-000 | F07247-000 |
| Varistor Voltage | - | 220 V | - |
| Lead Spacing | - | 10 mm | - |