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| PartNumber | V681HA40 | V681HA32 | V681DHB34 |
| Description | Varistors INDUSTRIAL VARISTOR HIGH ENERGY | Varistors INDUSTRIAL VARISTOR HIGH ENERGY PCB USE | Varistors DHB Series |
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Category | TVS - Varistors, MOVs | TVS - Varistors, MOVs | TVS - Varistors, MOVs |
| Series | HA | HA | DHB34 |
| Product | MOV | MOV | MOV |
| Packaging | Bulk | Bulk | Bulk |
| Termination Style | Through Hole | Through Hole | Solder Terminal |
| Mounting | SMD/SMT | SMD/SMT | Radial |
| Operating Temperature Range | - 55 C to + 85 C | - 55 C to + 85 C | - 55 C to + 85 C |
| Package Case | Disc 40mm, Formed Tabs | Disc 32mm, Formed Tabs | Square 34mm, Tabs |
| Capacitance | 1900 pF | 850 pF | 1900 pF |
| Mounting Type | Bolt Mount | Bolt Mount | Through Hole |
| Number of Circuits | 1 | 1 | 1 |
| Diameter | 42.5 mm | 35.5 mm | 34 mm |
| Varistor Voltage Min | 962V | 962V | 962V |
| Varistor Voltage Typ | 1067.5V (1.0675kV) | 1067.5V (1.0675kV) | 1067.5V (1.0675kV) |
| Varistor Voltage Max | 1173V (1.173kV) | 1173V (1.173kV) | 1173V (1.173kV) |
| Current Surge | 40kA | 25kA | 40kA |
| Maximum AC Volts | 680VAC | 680VAC | 680VAC |
| Maximum DC Volts | 875VDC | 875VDC | 875VDC |
| Energy | 925J | 610J | 925J |
| Voltage Rating AC | 680 VAC | 680 VAC | 680 VAC |
| Voltage Rating DC | 875 VDC | 875 VDC | 875 VDC |
| Clamping Voltage | 1.78 kV | 1.83 kV | 1.777 kV |
| Peak Surge Current | 40 kA | 25 kA | 40 kA |