| PartNumber | SMOV34S301MP | SMOV34S321MP | SMOV34S301NP |
| Description | Varistors 300Vac 400Vdc 34mm SQ | Varistors 320Vac 420Vdc 34mm SQ | Varistors 300Vac 400Vdc 34mm SQ Non-Iso |
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Category | TVS - Varistors, MOVs | TVS - Varistors, MOVs | TVS - Varistors, MOVs |
| Series | SMOV34S | SMOV34S | SMOV34S |
| Product | MOV | MOV | - |
| Packaging | Bulk | Bulk | Bulk |
| Current Rating | 20 kA | 20 kA | - |
| Termination Style | Through Hole | Through Hole | - |
| Mounting | Radial | Radial | - |
| Operating Temperature Range | - 45 C to + 75 C | - 45 C to + 75 C | - |
| Height | 44 mm | 44 mm | - |
| Length | 41 mm | 41 mm | - |
| Width | 20 mm | 20 mm | - |
| Package Case | Box, 5 lead | Box, 5 lead | Box, 5 lead |
| Capacitance | 4050 pF | 3800 pF | - |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Number of Circuits | 1 | 1 | 1 |
| Varistor Voltage Min | 432V | 459V | 432V |
| Varistor Voltage Typ | 480V | 510V | 480V |
| Varistor Voltage Max | 528V | 561V | 528V |
| Current Surge | 40kA | 40kA | 40kA |
| Maximum AC Volts | 300VAC | 320VAC | 300VAC |
| Maximum DC Volts | 385VDC | 420VDC | 385VDC |
| Energy | 590J | 640J | 590J |
| Voltage Rating AC | 300 VAC | 320 VAC | - |
| Voltage Rating DC | 400 VDC | 420 VDC | - |
| Clamping Voltage | 765 V | 825 V | - |
| Peak Surge Current | 40 kA | 40 kA | - |
| Varistor Voltage | 517 VDC | 561 VDC | - |
| Surge Energy Rating | 370 J | 390 J | - |