| PartNumber | ROV20H621K-S | ROV20H621K-S-2 | ROV20H680L |
| Description | Varistors 20mm 620V +-10% High Surge Series | Varistors 20mm 620V +-10% High Surge Series | Varistors 20mm 68V +-15% High Surge Series |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse |
| Product Category | Varistors | Varistors | Varistors |
| RoHS | Y | Y | Y |
| Series | ROV20H | ROV20H | ROV20H |
| Product | MOV | MOV | MOV |
| Mounting Style | PCB Mount | PCB Mount | PCB Mount |
| Termination Style | Radial | Radial | Radial |
| 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 | 20 mm | 20 mm | 20 mm |
| Peak Surge Current | 10 kA | 10 kA | 3 A |
| Surge Energy Rating | 420 J | 420 J | 49 J |
| Capacitance | 600 pF | 600 pF | 9600 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 % | 15 % |
| Type | High Surge Metal Oxide Varistors | High Surge Metal Oxide Varistors | High Surge Metal Oxide Varistors |
| Brand | Littelfuse | Littelfuse | Littelfuse |
| Product Type | Varistors | Varistors | Varistors |
| Factory Pack Quantity | 150 | 500 | 750 |
| Subcategory | Varistors | Varistors | Varistors |
| Part # Aliases | F33008-000 | A88360-000 | A50592-000 |