| PartNumber | B72220S0170K551 | B72220S0171K101 | B72220S0170K101 |
| Description | Varistors Varistor S20K17G5S5 | Varistors 175volts 8000A | Varistors 17volts 2000A |
| Manufacturer | EPCOS / TDK | EPCOS / TDK | EPCOS |
| Product Category | Varistors | Varistors | TVS - Varistors, MOVs |
| RoHS | Y | Y | - |
| Series | B722xxS0 | B722xxS0 | - |
| Product | MOV | MOV | MOV |
| Mounting Style | PCB Mount | PCB Mount | - |
| Termination Style | Radial | Radial | Radial |
| Voltage Rating AC | 17 VAC | 175 VAC | 17 VAC |
| Voltage Rating DC | 22 VDC | 225 VDC | 22 VDC |
| Varistor Voltage | 27 V | - | 27 VDC |
| Clamping Voltage | 53 V | 455 V | 53 V |
| Diameter | 20 mm | 20 mm | 20 mm |
| Peak Surge Current | 2 kA | 8 kA | 2 kA |
| Surge Energy Rating | 5 J | 98 J | 14 J |
| Capacitance | 0.0156 uF | 1000 pF | 15600 pF |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 105 C | + 105 C | - |
| Packaging | Reel | Bulk | Bulk |
| Current Rating | 20 A | - | 20 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 | 1000 | 1500 | - |
| Subcategory | Varistors | Varistors | - |
| Part # Aliases | 170K551 B32K680 B72220S B72220S170K551 | 171K101 B72220S B72220S171K101 | - |
| Unit Weight | 0.529109 oz | 0.529109 oz | 0.529109 oz |
| Length | - | 25.5 mm | - |
| Part Aliases | - | - | B72220S170K101 |
| Mounting | - | - | Radial |
| Operating Temperature Range | - | - | - 40 C to + 85 C |