| PartNumber | ROV10-621K-S-2 | ROV10-621K | ROV10-680K |
| Description | Varistors 10mm 620V +-10% | Varistors | Varistors |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse |
| Product Category | Varistors | Varistors | Varistors |
| RoHS | Y | Y | Y |
| Series | ROV10 | ROV10 | ROV10 |
| Product | MOV | MOV | MOV |
| Voltage Rating AC | 385 VAC | 385 VAC | 40 VAC |
| Voltage Rating DC | 620 VDC | 620 VDC | 68 VDC |
| Clamping Voltage | 1.025 kV | 1.025 kV | 135 V |
| Diameter | 10 mm | 10 mm | 10 mm |
| Surge Energy Rating | 82 J | 82 J | 8.5 J |
| Capacitance | 160 pF | 160 pF | 2230 pF |
| Packaging | Bulk | Bulk | Bulk |
| Brand | Littelfuse | Littelfuse | Littelfuse |
| Product Type | Varistors | Varistors | Varistors |
| Factory Pack Quantity | 1000 | 500 | 500 |
| Subcategory | Varistors | Varistors | Varistors |
| Part # Aliases | A08559-000 | E78791-000 | C93343-000 |
| Peak Surge Current | - | - | 500 A |