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| PartNumber | ETFV20K130E2 | ETFV20K175E2 | ETFV20K150E2 |
| Description | Varistors 20mm 130Volt Thermally Fused | Varistors 20mm 175Volt Thermally Fused | Varistors 20mm 150Volt Thermally Fused |
| Manufacturer | EPCOS (TDK) | EPCOS (TDK) | EPCOS (TDK) |
| Product Category | TVS - Varistors, MOVs | TVS - Varistors, MOVs | TVS - Varistors, MOVs |
| Series | ETFV | ETFV | ETFV |
| Product | MOV | MOV | MOV |
| Type | Thermo Fuse | Thermo Fuse | Thermo Fuse |
| Packaging | Bulk | Bulk | Bulk |
| Part Aliases | B72220T2131K101 | B72220T2171K101 | B72220T2151K101 |
| Termination Style | Through Hole | Through Hole | Through Hole |
| Mounting | Radial | Radial | Radial |
| Operating Temperature Range | - 40 C to + 85 C | - 40 C to + 85 C | - 40 C to + 85 C |
| Height | 25.7 mm | 25.7 mm | 25.7 mm |
| Length | 25.7 mm | 25.7 mm | 25.7 mm |
| Width | 9.7 mm | 9.7 mm | 9.7 mm |
| Package Case | Radial | Radial | Radial |
| Capacitance | 1340 pF | 1000 pF | 1160 pF |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Number of Circuits | 1 | 1 | 1 |
| Tolerance | 10 % | 10 % | 10 % |
| Lead Spacing | 5 mm | 5 mm | 5 mm |
| Diameter | 20 mm | 20 mm | 20 mm |
| Varistor Voltage Min | 184.5V | 243V | 216V |
| Varistor Voltage Typ | 205V | 270V | 240V |
| Varistor Voltage Max | 225.5V | 297V | 264V |
| Current Surge | 10kA | 10kA | 10kA |
| Maximum AC Volts | 130VAC | 175VAC | 150VAC |
| Maximum DC Volts | 170VDC | 225VDC | 200VDC |
| Energy | 100J | 135J | 120J |
| Voltage Rating AC | 130 VAC | 175 VAC | 150 VAC |
| Voltage Rating DC | 170 VDC | 225 VDC | 200 VDC |
| Clamping Voltage | 340 V | 455 V | 395 V |
| Peak Surge Current | 10 kA | 10 kA | 10 kA |
| Surge Energy Rating | 100 J | 135 J | 120 J |