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| PartNumber | Z33M102S | Z33M221S | Z33M221 |
| Description | Varistors 1000V 20000A mm | Varistors 220V 20000A mm | |
| Manufacturer | Semitec | Semitec | Semitec |
| Product Category | TVS - Varistors, MOVs | TVS - Varistors, MOVs | TVS - Varistors, MOVs |
| Packaging | Bulk | Bulk | Bulk |
| Mounting | Radial | Radial | Radial |
| Operating Temperature Range | - 40 C to + 85 C | - 40 C to + 85 C | - 40 C to + 85 C |
| Capacitance | 3700 pF | 280 pF | 280 pF |
| Diameter | 16 mm | 16 mm | 16 mm |
| Voltage Rating AC | 520 VAC | 120 VAC | 120 VAC |
| Voltage Rating DC | 730 VDC | 165 VDC | 165 VDC |
| Clamping Voltage | 135 V | 1355 V | 1355 V |
| Peak Surge Current | 4.5 kA | 4.5 kA | 4.5 kA |
| Surge Energy Rating | 620 J | 200 J | 200 J |