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| PartNumber | B72220S0551K101 | B72220S0551K101V87 | B72220S0551K151 |
| Description | Varistors Varistor S20K550 | Varistor, 745V, 210J, Through Hole Mount | |
| Manufacturer | EPCOS | - | - |
| Product Category | TVS - Varistors, MOVs | - | - |
| Series | Disk Standard | - | - |
| Packaging | Bulk | - | - |
| Unit Weight | 0.529109 oz | - | - |
| Mounting | Radial | - | - |
| Operating Temperature Range | - 40 C to + 85 C | - | - |
| Length | 26 mm | - | - |
| Capacitance | 320 pF | - | - |
| Tolerance | 10 % | - | - |
| Diameter | 21.5 mm | - | - |
| Voltage Rating AC | 550 VAC | - | - |
| Voltage Rating DC | 745 VDC | - | - |
| Clamping Voltage | 1.5 kV | - | - |
| Peak Surge Current | 6.5 kA | - | - |
| Surge Energy Rating | 210 J | - | - |