| PartNumber | B72220S0500K551 | B72220S0500K101 | B72220S0511K101 |
| Description | Varistors Varistor S20K50G5S5 | Varistors 50volts 2000A | Varistors 510volts 6500A |
| Manufacturer | EPCOS / TDK | EPCOS / TDK | EPCOS |
| Product Category | Varistors | Varistors | TVS - Varistors, MOVs |
| RoHS | Y | Y | - |
| Series | B722xxS0 | B722xxS0 | Disk Standard |
| Product | MOV | MOV | MOV |
| Mounting Style | PCB Mount | PCB Mount | - |
| Termination Style | Radial | Radial | Radial |
| Voltage Rating AC | 50 VAC | 50 VAC | 510 VAC |
| Voltage Rating DC | 65 VDC | 65 VDC | 670 VDC |
| Varistor Voltage | 82 V | - | 820 VDC |
| Clamping Voltage | 135 V | 135 V | 1355 V |
| Diameter | 20 mm | 20 mm | 20 mm |
| Peak Surge Current | 2 kA | 6.5 kA | 2.5 kA |
| Surge Energy Rating | 27 J | - | 190 J |
| Capacitance | 3800 pF | 3800 pF | 340 pF |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 105 C | + 105 C | - |
| Packaging | Reel | Bulk | Bulk |
| Current Rating | 20 A | - | 100 A |
| Tolerance | 10 % | 10 % | 10 % |
| Type | Leaded Varistors | - | - |
| Brand | EPCOS / TDK | EPCOS / TDK | - |
| Lead Spacing | 10 mm | - | 10 mm |
| Product Type | Varistors | Varistors | - |
| Factory Pack Quantity | 2000 | 1500 | - |
| Subcategory | Varistors | Varistors | - |
| Part # Aliases | 500K551 B72220S B72220S500K551 LS40K460QPK2 | 500K101 B72220S B72220S500K101 | - |
| Unit Weight | 0.529109 oz | 0.529109 oz | 0.529109 oz |
| Mounting | - | - | Radial |
| Operating Temperature Range | - | - | - 40 C to + 85 C |
| Length | - | - | 26 mm |