| PartNumber | ROV20E331K-S | ROV20E331K-2 | ROV20E301K-S |
| Description | Varistors 20mm 330V +-10% Extra HiSurge Series | Varistors 20mm 330V +-10% Extra HiSurge Series | Varistors 20mm 300V +-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 | 210 VAC | 210 VAC | 195 VAC |
| Voltage Rating DC | 330 VDC | 330 VDC | 300 VDC |
| Clamping Voltage | 550 V | 550 V | 505 V |
| Diameter | 20 mm | 20 mm | 20 mm |
| Peak Surge Current | 12.5 kA | 12.5 kA | 12.5 kA |
| Surge Energy Rating | 277 J | 277 J | 252 J |
| 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 | 500 | 750 |
| Subcategory | Varistors | Varistors | Varistors |
| Part # Aliases | E35562-000 | F11207-000 | A32464-000 |