| PartNumber | V661DB40 | V661DA40 | V661DHB34 |
| Description | Varistors 40kA 1050V 40kA 2000pF | Varistors 40kA 1050V 40kA 2000pF | Varistors DHB Series |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse Inc. |
| Product Category | Varistors | Varistors | TVS - Varistors, MOVs |
| RoHS | Y | Y | - |
| Series | DB | DA | DHB34 |
| Mounting Style | PCB Mount | PCB Mount | - |
| Termination Style | SMD/SMT | SMD/SMT | Solder Terminal |
| Voltage Rating AC | 660 VAC | 660 VAC | 660 VAC |
| Voltage Rating DC | 850 VDC | 850 VDC | 850 VDC |
| Clamping Voltage | 1.72 kV | 1.72 kV | 1.72 kV |
| Diameter | 40 mm | 40 mm | 34 mm |
| Peak Surge Current | 40 kA | 40 kA | 40 kA |
| Surge Energy Rating | 900 J | - | - |
| Capacitance | 2000 pF | 2000 pF | 2000 pF |
| Minimum Operating Temperature | - 55 C | - 55 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Bulk | Bulk | Bulk |
| Height | 12.7 mm | - | - |
| Length | 60.3 mm | - | - |
| Type | Varistor | - | - |
| Brand | Littelfuse | Littelfuse | - |
| Product Type | Varistors | Varistors | - |
| Factory Pack Quantity | 10 | 12 | - |
| Subcategory | Varistors | Varistors | - |
| Product | - | - | MOV |
| Mounting | - | - | Radial |
| Operating Temperature Range | - | - | - 55 C to + 85 C |
| Package Case | - | - | Square 34mm, Tabs |
| Mounting Type | - | - | Through Hole |
| Number of Circuits | - | - | 1 |
| Varistor Voltage Min | - | - | 945V |
| Varistor Voltage Typ | - | - | 1050V (1.05kV) |
| Varistor Voltage Max | - | - | 1155V (1.155kV) |
| Current Surge | - | - | 40kA |
| Maximum AC Volts | - | - | 660VAC |
| Maximum DC Volts | - | - | 850VDC |
| Energy | - | - | 900J |