# TVS Varistor, 275 V, 350 V, 710 V, Disc 20mm, Metal Oxide Varistor (MOV)

![Product image](https://novapart.co/image/farnell:4263672/)

**URL**: https://novapart.co/products/MPV20S431KNKA/tvs-varistor-275-v-350-710-disc-20mm-metal-oxide
**SKU**: MPV20S431KNKA
**Manufacturer**: MULTICOMP PRO
**Category**: Circuit Protection || TVS - Transient Voltage Suppressors || TVS Varistors
**Price**: €0.4030
**Stock**: 500+
**Lead Time**: 36 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Product Range | - |
| Varistor Type | Metal Oxide Varistor (MOV) |
| Voltage Rating Vac | 275V |
| Voltage Rating Vdc | 350V |
| Varistor Case Style | Disc 20mm |
| Clamping Voltage Vc Max | 710V |
| Peak Energy (10/1000Us) | 365J |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |
| Peak Surge Current @ 8/20Μs | 8kA |
| Automotive Qualification Standard | - |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4263672/)

## **Standard MOV Varistor Square, 20mm** 

## **Description** 

Metal Oxide Varistor (MOV) as one nonlinear resistance element is mainly made of zinc oxide (ZnO), which has very high surge capacity and big nonlinear coefficient. Below the threshold voltage, its resistance is very high, nearly no current flows through, but above the threshold voltage, the resistance reduces sharply, huge current can be discharged. Due to this characteristic, varistor as a protection component in electronic and electrical equipment can absorb abnormal over-voltage and lightning surge. 

Varistor is with High Surge Current Density, Low Clamping Voltage, and Good Surge Capacity. It can also be customized as required. 

## **Approvals** 

UL1449 4th Edition TUV  EN 61051-1:2008 IEC 61051-1:2007 IEC 61051-2:1991+A1 IEC 61051-2-2:1991 Annex Q of IEC 60950-1:2005+A1+A2 

## **Features** 

- Epoxy Resin Coating 

- Silicone Resin Coating 

- Low Leakage Current 

- Bidirectional and Symmetrical V/I Characteristics 

- Operating Temperature Range Low Temperature: -40°C High Temperature: +85°C / +105°C 

## **Applications** 

- Power Supplies 

- Home Electrical Appliances 

- Industrial Devices 

- Surge Protectors 

- Telecom Devices 

## **Product Structure** 

## **Lead Types** 

Newark.com/multicomp-pro Farnell.com/multicomp-pro sg.element14.com/b/multicomp-pro 

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## **Standard MOV Varistor Square, 20mm** 

## **Temp. Derating Curve** 

**==> picture [188 x 126] intentionally omitted <==**

## Note: 

When ambient Temp. exceeds 85°C, the peak surge current and energy rating should be reduced as shown in the left curve. 

## **General Technical Data** 

|**Item**|**Value**|**Unit**|
|---|---|---|
|OperatingTemperature|-40 to +85|°C|
|Storage Temperature|-40 to +125|°C|
|Voltage Proof|≥2500|Vac|
|Insulation Resistance|≥100|MΩ|



|**Item**|**Description**|
|---|---|
|**VN**|**Nominal Varistor Voltage**<br>Voltage, at specifed D.C. current used as a referencepoint in the component characteristics.|
|**IL**|**Leakage Current**<br>Measuringat 75% of varistor voltage.|
|**UCT**|**Upper Category Temp.**<br>Max. ambient temp. for which a varistor has been designed to operate continuously.|
|**UCT**|**Lower Category Temp.**<br>Minimum ambient temp. at which a varistor has been designed to operate continuously.|
|**Max.**<br>**Peak Current**|**Max. Peak Current**<br>Max. current per pulse, which may be passed by a varistor at an ambient temp. of 25 °C, for a given<br>number ofpulses.|
|**VC**|**Clamping Voltage**<br>Peak voltage developed across the varistor terminations under standard atmospheric conditions, when<br>passingan 8/20μs class currentpulse.|
|**Voltage**<br>**Proof**|**Voltage Proof**<br>Max. peak voltage, which may be applied under continuous operating conditions between the varistor<br>terminations and anyconductingmountingsurface(Applicable onlyto insulated varistors).|
|**CV**|**Capacitance**<br>Capacitance across the MOV measured at a specifed frequencyand voltage.|
|**Vac**|**Max. Continuous a.c. Voltage**<br>Max. a.c. r.m.s. voltage of a substantially sinusoidal waveform (less than 5% total harmonic distortion)<br>which can be applied to the component under continuous operatingconditions at 25°C.|
|**Vdc**|**Max. Continuous d.c. Voltage**<br>Max. d.c. voltage (with less than 5% ripple) which can be applied to the component under continuous<br>operatingconditions at an ambient temp. of 25°C.|



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## **Standard MOV Varistor Square, 20mm** 

## **Dimensions** 

|**Dimensions**|||||||||
|---|---|---|---|---|---|---|---|---|
|**Part Number**|**L**<br>**(Min.)**|**W**<br>**(Max.)**|**H**<br>**(Max.)**|**T**<br>**(Max.)**|**d**|**F**|**F1**|**A (Max.)**|
|MPV20S820KNK|20|22|26|4.9|1 ±0.05|10 ±0.6|1.3 - 2.9|27.5|
|MPV20S241KNK||||5.4|||1.7 - 3.5||
|MPV20S271KNK||||5.6|||1.8 - 3.6||
|MPV20S391KNK||||6.4|||2.3 - 4.3||
|MPV20S431KNK||||6.6|||2.6 - 4.6||
|MPV20S471KNK||||6.9|||2.8 - 4.8||
|MPV20S511KNK||||7.1|||3.1 - 5.1||
|MPV20S621KNK||||7.8|||3.7 - 5.7||
|MPV20S681KNK||||8.2|||4.1 - 6.1||



## **Diagram** 

## **Specification Table** 

|**Part Number**<br>~~pot~~<br>~~es~~|**Max.**<br>**Continuous**<br>**Operating**<br>**Voltage**<br>~~pot~~<br>~~|~~|**Max.**<br>**Continuous**<br>**Operating**<br>**Voltage**<br>~~pot~~<br>~~|~~|**Varistor**<br>**Voltage**<br>**@1 mA DC**<br>~~ft~~<br>~~|~~|**Varistor**<br>**Voltage**<br>**@1 mA DC**<br>~~ft~~<br>~~|~~|**Clamping**<br>**Voltage**<br>**(Max.)**|**Clamping**<br>**Voltage**<br>**(Max.)**|**Max.**<br>**Discharge**<br>**Current**<br>**(8/20 μs)**|**Max.**<br>**Discharge**<br>**Current**<br>**(8/20 μs)**|**Max.**<br>**Energy**<br>**(10/1000**<br>**μs)**|**Typical**<br>**Capacitance**<br>**(For reference**<br>**only )**<br>**@1 kHz**|
|---|---|---|---|---|---|---|---|---|---|---|
||**Vac**<br>~~pot~~|**Vdc**<br>~~pot~~<br>~~|~~|**Min.**<br>~~ft~~|**Max.**<br>~~ft~~<br>~~|~~|**VC**|**IP**|**In**|**Imax**|**(J)**<br>~~a~~|**(pF)**<br>~~a~~|
||**(V)**<br>~~pot~~<br>~~ee~~|**(V)**<br>~~pot~~<br>~~|~~<br>~~ee~~|**(V)**<br>~~ft~~<br>~~ee~~|**(V)**<br>~~ft~~<br>~~|~~<br>~~ee~~|**(V)**<br>~~ee~~|**(V)**|**(kA)**||||
|MPV20S820KNK<br>~~es~~<br>~~ee~~|50<br>~~ee~~<br>~~ee~~|65<br>~~ee~~<br>~~ee~~|74<br>~~ee~~<br>~~ee~~|90<br>~~ee~~<br>~~ee~~|135<br>~~ee~~<br>~~ee~~|125|8|15|67<br>~~a~~<br>~~a~~|5880<br>~~a~~<br>~~a~~|
|MPV20S241KNK<br>~~es ~~<br>~~ee~~<br>~~ee~~|150<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|200<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|216<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|264<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|395<br> ~~ee~~<br>~~ee~~<br>~~ee~~||||200<br>~~a~~<br>~~a~~<br>~~a~~|2000<br>~~a~~<br>~~a~~<br>~~a~~|
|MPV20S271KNK<br>~~ee ~~<br>~~ee~~<br>~~es~~|175<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|225<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|243<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|297<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|455<br> ~~ee~~<br>~~ee~~<br>~~ee~~||||230<br>~~a~~<br>~~a~~<br>~~rr~~|1800<br>~~a~~<br>~~a~~<br>~~rr~~|
|MPV20S391KNK<br>~~ee ~~<br>~~es~~<br>~~es~~|250<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|320<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|351<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|429<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|650<br> ~~ee~~<br>~~ee~~||||330<br>~~a~~<br>~~rr~~<br>~~a~~|1200<br>~~a~~<br>~~rr~~<br>~~a~~|
|MPV20S431KNK<br>~~es ~~<br>~~es~~<br>~~es~~|275<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|350<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|387<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|473<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|710<br> ~~ee~~<br>~~ee~~||||365<br>~~rr~~<br>~~a~~<br>~~re~~|1160<br>~~rr~~<br>~~a~~<br>~~re~~|
|MPV20S471KNK<br>~~es ~~<br>~~es~~<br>~~es~~|300<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|385<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|423<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|517<br> ~~ee~~<br>~~ee~~<br>~~ee~~|775<br>~~ee~~||||420<br>~~a~~<br>~~re~~<br>~~a~~|1020<br>~~a~~<br>~~re~~<br>~~a~~|
|MPV20S511KNK<br>~~es ~~<br>~~es~~|320<br> ~~ee ~~<br>~~ee~~|415<br> ~~ee ~~<br>~~ee~~|459<br> ~~ee ~~<br>~~ee~~|561<br> ~~ee ~~<br>~~ee~~|845<br> ~~ee~~||||430<br>~~re~~<br>~~a~~|935<br>~~re~~<br>~~a~~|
|MPV20S621KNK<br>~~es ~~|385<br> ~~ee ~~<br>~~ee~~|505<br> ~~ee ~~<br>~~ee~~|558<br> ~~ee ~~<br>~~ee~~|682<br> ~~ee~~<br>~~ee~~|1025<br>~~ee~~||||465<br>~~a~~|780<br>~~a~~|
|MPV20S681KNK<br>~~ee~~|420<br>~~ee~~<br>~~ee~~|560<br>~~ee~~<br>~~ee~~|612<br>~~ee~~<br>~~ee~~|748<br>~~ee~~<br>~~ee~~|1120<br>~~ee~~<br>~~ee~~||||||



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## **Standard MOV Varistor Square, 20mm** 

## **Performance Curve** 

Max. Peak Current Derating Curves 

**==> picture [88 x 10] intentionally omitted <==**

**----- Start of picture text -----**<br>
Impulse Duration (μs)<br>**----- End of picture text -----**<br>


Note: 1, 2, 10, 10[2] , 10[3] , 10[4] , 10[5] , 10[6] Stand for Repetitions. 

## **Voltage-Current Characteristic Curves** 

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## **Standard MOV Varistor Square, 20mm** 

## **Part Number Table** 

|**Part Number Table**||
|---|---|
|**Description**|**Part Number**|
|Varistor, MOV, 50V AC, Disc 20mm|MPV20S820KNK|
|Varistor, MOV, 150V AC, Disc 20mm|MPV20S241KNK|
|Varistor, MOV, 175V AC, Disc 20mm|MPV20S271KNK|
|Varistor, MOV, 250V AC, Disc 20mm|MPV20S391KNK|
|Varistor, MOV, 275V AC, Disc 20mm|MPV20S431KNK|
|Varistor, MOV, 300V AC, Disc 20mm|MPV20S471KNK|
|Varistor, MOV, 320V AC, Disc 20mm|MPV20S511KNK|
|Varistor, MOV, 385V AC, Disc 20mm|MPV20S621KNK|
|Varistor, MOV, 420V AC, Disc 20mm|MPV20S681KNK|



**Important Notice :** This data sheet and its contents (the “Information”) belong to the members of the AVNET group of companies (the “Group”) or are licensed to it. No licence is granted for the use of it other than for information purposes in connection with the products to which it relates. No licence of any intellectual property rights is granted. The Information is subject to change without notice and replaces all data sheets previously supplied. The Information supplied is believed to be accurate but the Group assumes no responsibility for its accuracy or completeness, any error in or omission from it or for any use made of it. Users of this data sheet should check for themselves the Information and the suitability of the products for their purpose and not make any assumptions based on information included or omitted. Liability for loss or damage resulting from any reliance on the Information or use of it (including liability resulting from negligence or where the Group was aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group’s liability for death or personal injury resulting from its negligence. Multicomp Pro is the registered trademark of Premier Farnell Limited 2019. 

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## Links

- [View this product on Novapart](https://novapart.co/products/MPV20S431KNKA/tvs-varistor-275-v-350-710-disc-20mm-metal-oxide)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/multicomp-pro/mpv20s431knka/varistor-mov-710v-8ka-disc-20mm/dp/4263672)
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