| PartNumber | SMOV34S421MP | SMOV34S461MP | SMOV34S421NP |
| Description | Varistors 420Vac 560Vdc 34mm SQ | Varistors 460Vac 610Vdc 34mm SQ | Varistors 420Vac 560Vdc 34mm SQ Non-Iso |
| Manufacturer | Littelfuse | Littelfuse Inc. | Littelfuse Inc. |
| Product Category | Varistors | TVS - Varistors, MOVs | TVS - Varistors, MOVs |
| RoHS | Y | - | - |
| Series | 34S | SMOV34S | SMOV34S |
| Product | MOV | MOV | - |
| Mounting Style | PCB Mount | - | - |
| Termination Style | Radial | Through Hole | - |
| Voltage Rating AC | 420 VAC | 460 VAC | - |
| Voltage Rating DC | 679 VDC | 610 VDC | - |
| Varistor Voltage | 748 V | 783 VDC | - |
| Clamping Voltage | 1.13 kV | 1188 V | - |
| Peak Surge Current | 40 kA | 40 kA | - |
| Surge Energy Rating | 910 J | 960 J | - |
| Capacitance | 3000 pF | 2800 pF | - |
| Minimum Operating Temperature | - 45 C | - | - |
| Maximum Operating Temperature | + 75 C | - | - |
| Packaging | Bulk | Bulk | Bulk |
| Current Rating | 20 A | 20 kA | - |
| Height | 44 mm | 44 mm | - |
| Length | 41 mm | 41 mm | - |
| Width | 20 mm | 20 mm | - |
| Brand | Littelfuse | - | - |
| Product Type | Varistors | - | - |
| Factory Pack Quantity | 24 | - | - |
| Subcategory | Varistors | - | - |
| Tradename | SMOV | - | - |
| Mounting | - | Radial | - |
| Operating Temperature Range | - | - 45 C to + 75 C | - |
| Package Case | - | Box, 5 lead | Box, 5 lead |
| Mounting Type | - | Through Hole | Through Hole |
| Number of Circuits | - | 1 | 1 |
| Varistor Voltage Min | - | 643.5V | 612V |
| Varistor Voltage Typ | - | 715V | 680V |
| Varistor Voltage Max | - | 786.5V | 748V |
| Current Surge | - | 40kA | 40kA |
| Maximum AC Volts | - | 460VAC | 420VAC |
| Maximum DC Volts | - | 610VDC | 560VDC |
| Energy | - | 960J | 910J |