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| PartNumber | V551HA32 | V551HB34 | V551HA40 |
| Description | Varistors INDUSTRIAL VARISTOR HIGH ENERGY PCB USE | Varistors HIGH ENERGY PCB USE | Varistors INDUSTRIAL VARISTOR HIGH ENERGY PCB USE |
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Category | TVS - Varistors, MOVs | TVS - Varistors, MOVs | TVS - Varistors, MOVs |
| Series | HA | HB34 | HA |
| Product | MOV | MOV | MOV |
| Packaging | Bulk | Bulk | Bulk |
| Termination Style | Through Hole | Solder Terminal | Through Hole |
| Mounting | SMD/SMT | Radial | SMD/SMT |
| Operating Temperature Range | - 55 C to + 85 C | - 55 C to + 85 C | - 55 C to + 85 C |
| Package Case | Disc 32mm, Formed Tabs | Square 34mm, Formed Tabs | Disc 40mm, Formed Tabs |
| Capacitance | 1190 pF | 2390 pF | 2390 pF |
| Mounting Type | Bolt Mount | Through Hole | Bolt Mount |
| Number of Circuits | 1 | 1 | 1 |
| Diameter | 35.5 mm | 34 mm | 42.5 mm |
| Varistor Voltage Min | 778V | 778V | 778V |
| Varistor Voltage Typ | 863.5V | 863.5V | 863.5V |
| Varistor Voltage Max | 949V | 949V | 949V |
| Current Surge | 25kA | 40kA | 40kA |
| Maximum AC Volts | 550VAC | 550VAC | 550VAC |
| Maximum DC Volts | 710VDC | 710VDC | 710VDC |
| Energy | 530J | 755J | 755J |
| Voltage Rating AC | 550 VAC | 550 VAC | 550 VAC |
| Voltage Rating DC | 710 VDC | 710 VDC | 710 VDC |
| Clamping Voltage | 1.515 kV | 1.404 kV | 1.43 kV |
| Peak Surge Current | 25 kA | 40 kA | 40 kA |