| PartNumber | V56ZS2 | V56ZS20P | V56ZS20PX10 |
| Description | Varistors 250A 700pF | Varistors 20MM Radial | Varistors 20MM Radial |
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Category | TVS - Varistors, MOVs | TVS - Varistors, MOVs | TVS - Varistors, MOVs |
| Series | ZS | ZS | ZS |
| Product | MOV | - | - |
| Type | Varistors | - | - |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) Alternate Packaging | Tape & Reel (TR) Alternate Packaging |
| Mounting | Radial | - | - |
| Operating Temperature Range | - 55 C to + 85 C | - | - |
| Package Case | Disc 7mm | Disc 20mm | Disc 20mm |
| Capacitance | 700 pF | - | - |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Number of Circuits | 1 | 1 | 1 |
| Diameter | 7 mm | - | - |
| Varistor Voltage Min | 50.4V | 50.4V | 50.4V |
| Varistor Voltage Typ | 56V | 56V | 56V |
| Varistor Voltage Max | 61.6V | 61.6V | 61.6V |
| Current Surge | 250A | 2kA | 2kA |
| Maximum AC Volts | 35VAC | 35VAC | 35VAC |
| Maximum DC Volts | 45VDC | 45VDC | 45VDC |
| Energy | 2.3J | 30J | 30J |
| Voltage Rating AC | 35 VAC | - | - |
| Voltage Rating DC | 45 VDC | - | - |
| Clamping Voltage | 110 V | - | - |
| Peak Surge Current | 250 A | - | - |
| Surge Energy Rating | 2.3 J | - | - |