Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Device type | Radial metal-oxide varistor |
| Series | UltraMOV |
| Disc diameter | 14 mm |
| Maximum continuous AC voltage | 320 V RMS |
| Maximum continuous DC voltage | 420 V |
| Energy rating | 136 J |
| Peak surge current | 6 kA single pulse |
| Varistor-voltage range | 459 V to 561 V |
| Mounting | Radial leaded |
Product Overview
V14E320P is a 14 mm Littelfuse UltraMOV radial MOV for line-voltage surge protection. The 320 V grade supports 320 VAC RMS or 420 VDC continuous operation, making it suited to mains-connected suppression networks where the continuous voltage is well above low-voltage board-level MOV ranges.
Its 14 mm disc balances board space with a 136 J single-pulse energy rating and 6 kA single 8/20 µs surge-current capability.
Technical Specifications
| Parameter | Confirmed Information |
|---|---|
| VAC continuous | 320 V RMS |
| VDC continuous | 420 V |
| Energy, 2 ms | 136 J |
| Peak surge current, one pulse | 6,000 A |
| Peak surge current, two pulses | 4,500 A |
| Varistor voltage at 1 mA | 459 V to 561 V |
| Maximum clamping voltage | 840 V at 50 A |
| Typical capacitance | 380 pF |
| Disc diameter | 14 mm |
Surge-Protection Considerations
MOV selection should be based on the maximum steady-state line voltage and the expected surge waveform, not nominal mains voltage alone. Repetitive surge duty and thermal environment can reduce usable margin compared with the single-pulse ratings.
Manufacturer Resource
Quality & Verification Support
Exact V14E320P grade, 14 mm body, lead form, marking and lot/date information can be reviewed before shipment.
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Request V14E320P exactly and include quantity, compliance and traceability requirements.
