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| PartNumber | SMOV25S461MP | SMOV25S421NP | SMOV25S421MP |
| Description | Varistors 460Vac 615Vdc 25mm SQ | Varistors Thermally Protected SMOV25S | Varistors 420Vac 560Vdc 25mm SQ |
| Manufacturer | Littelfuse | Littelfuse Inc. | Littelfuse Inc. |
| Product Category | Varistors | TVS - Varistors, MOVs | TVS - Varistors, MOVs |
| RoHS | Y | - | - |
| Series | 25S | SMOV25S | SMOV25S |
| Product | MOV | - | MOV |
| Mounting Style | PCB Mount | - | - |
| Termination Style | Radial | - | Through Hole |
| Voltage Rating AC | 460 VAC | - | 420 VAC |
| Voltage Rating DC | 750 VDC | - | 560 VDC |
| Varistor Voltage | 825 V | - | 748 VDC |
| Clamping Voltage | 1.22 kV | - | 1100 V |
| Peak Surge Current | 20 kA | - | 20 kA |
| Surge Energy Rating | 490 J | - | 460 J |
| Capacitance | 750 pF | - | 820 pF |
| Minimum Operating Temperature | - 45 C | - | - |
| Maximum Operating Temperature | + 75 C | - | - |
| Packaging | Bulk | Bulk | Bulk |
| Current Rating | 10 A | - | 10 kA |
| Height | 35.5 mm | - | 35.5 mm |
| Length | 30.5 mm | - | 30.5 mm |
| Width | 16 mm | - | 16 mm |
| Brand | Littelfuse | - | - |
| Product Type | Varistors | - | - |
| Factory Pack Quantity | 32 | - | - |
| Subcategory | Varistors | - | - |
| Tradename | SMOV | - | - |
| Package Case | - | Box, 5 lead | Box, 5 lead |
| Mounting Type | - | Through Hole | Through Hole |
| Number of Circuits | - | 1 | 1 |
| Varistor Voltage Min | - | 612V | 612V |
| Varistor Voltage Typ | - | 680V | 680V |
| Varistor Voltage Max | - | 748V | 748V |
| Current Surge | - | 20kA | 20kA |
| Maximum AC Volts | - | 420VAC | 420VAC |
| Maximum DC Volts | - | 560VDC | 560VDC |
| Energy | - | 460J | 460J |
| Mounting | - | - | Radial |
| Operating Temperature Range | - | - | - 45 C to + 75 C |