| PartNumber | B72220S0250K151 | B72220S0251K101 | B72220S0250K101 |
| Description | Varistors Varistor S20K25G5 | Varistors 250volts 8000A | Varistors 25volts 2000A |
| Manufacturer | EPCOS / TDK | EPCOS | EPCOS |
| Product Category | TVS - Varistors, MOVs | TVS - Varistors, MOVs | TVS - Varistors, MOVs |
| Series | B722 | - | - |
| Product | MOV | MOV | - |
| Type | Leaded Varistors | - | - |
| Packaging | Reel | Bulk | - |
| Unit Weight | 0.529109 oz | 0.529109 oz | - |
| Current Rating | 20 A | - | - |
| Termination Style | Radial | - | - |
| Mounting | Through Hole | Radial | - |
| Operating Temperature Range | - 40 C to + 85 C | - 40 C to + 85 C | - |
| Capacitance | 0.0111 uF | 700 pF | - |
| Tolerance | 10 % | 10 % | - |
| Lead Spacing | 10 mm | - | - |
| Diameter | 20 mm | 20 mm | - |
| Voltage Rating AC | 25 VAC | 250 VAC | - |
| Voltage Rating DC | 31 VDC | 320 VDC | - |
| Clamping Voltage | 77 V | 650 V | - |
| Peak Surge Current | 2 kA | 8 kA | - |
| Varistor Voltage | 39 VDC | - | - |
| Surge Energy Rating | 22 J | - | - |