471KN14

TVS Varistor, 300 V, 385 V, 14N Series, 775 V, Disc 14mm, Metal Oxide Varistor (MOV)

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Manufacturer: YAGEO
Product type: TVS Varistors
SVHC: No SVHC (15-Jan-2019)
Product Range: 14N Series
Varistor Type: Metal Oxide Varistor (MOV)
Voltage Rating VAC: 300V
Voltage Rating VDC: 385V
Varistor Case Style: Disc 14mm
Clamping Voltage Vc Max: 775V
Peak Energy (10/1000uS): 175J
Operating Temperature Max: 85°C
Operating Temperature Min: -40°C
Peak Surge Current @ 8/20µs: 6kA
Automotive Qualification Standard: -

Delivery and price
Units per pack	500
Price	0.572 €
Current stock	1000+
Lead time	30 days

Datasheet

DATA SHEET METAL OXIDE VARISTORS POWER SUPPLY TMOV 14M(E,N)  series 

**RoHS compliant & Halogen free** 

Circuit Protection 

Product Specification 

2 10 

METAL OXIDE VARISTORS 

TMOV 14M(E,N) 

## **Metal Oxide Varistor Data Sheet** 

## **Features** 

- TMOV integrated thermal protection device 

- High peak surge current rating up to 6KA 

- Designed to facilitate compliance to UL1449 for TVSS products 

- Wide operating voltage (V1mA) range from 82V to 1200V 

- Rated current: 5A 

- Rated Functioning Temperature:136( ℃ ) 

- Fast responding to transient over-voltage and limited current 

- Large absorbing transient energy capability 

- Low clamping ratio and no follow-on current 

- Three-lead version available for indication purposes 

- Meets MSL level 1, per J-STD-020 

- Operating Temperature ： -40 ℃ ~ +85 ℃ 

- Storage Temperature ： -40 ℃ ~ +85 ℃ 

- Safety certification:  UL: E327997 

## **Applications** 

- AC power line or AC/DC supplies 

- Transistor, diode, IC, thyristor or triac semiconductor protection 

- Surge protection in consumer electronics 

- Surge protection in industrial electronics 

- Surge protection in electronic home appliances, gas and petroleum appliances 

- Relay and electromagnetic valve surge absorption 

- AC panel protection Modules 

## **Part number code** 

**==> picture [338 x 102] intentionally omitted <==**

**----- Start of picture text -----**<br>
Tolerance<br>K: ±10%<br>Element Diameter<br>Varistor Voltage<br>14<br>820: 82V<br>101: 100V Type<br>102: 1000V M/E/N: different internal structure<br>**----- End of picture text -----**<br>


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Aug 03, 2022 V.3 

Circuit Protection 

Product Specification 

3 10 

METAL OXIDE VARISTORS 

TMOV 14M(E,N) 

## **Lead configurations and application examples** 

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**----- Start of picture text -----**<br>
N Series<br>D<br>2 Thermal Line<br>Fuse<br>Line Fuse<br>Element<br>H Authorized<br>by UL<br>TMOV Varistor<br>L<br>Φd<br>1 2<br>MOV<br>Front view Neutral<br>E e<br>1<br>F<br>Bottom view<br>M Series<br>D Line<br>Monitor lead Line Fuse<br>3<br>H Thermal<br>Fuse<br>Element<br>Authorized TMOV Varistor<br>by UL<br>LED<br>2<br>L3<br>Φd<br>R<br>2<br>1 3 Neutral<br>Front view MOV<br>Line<br>e1 e E Line Fuse<br>F<br>F1 1<br>Bottom view<br>TMOV Varistor<br>E Series R<br>D AC OPTOCOUPLER<br>3 TO STATUS<br>ANNUNCIATOR<br>Thermal LIGHT/ALARM<br>H Fuse<br>Neutral<br>Element<br>Authorized<br>by UL Line<br>Load Switch Relay<br>L3 Line Fuse (loss of protection)<br>R<br>3 2 Monitor lead ＂ Load Powered ＂<br>Φd<br>  neon lamp<br>1 2<br>Front view TMOV Varistor<br>MOV<br>Fault LED<br>e1 e E (Normally off)<br>F<br>F1 R<br>Bottom view 1 Neutral<br>To Protected Circuit<br>To Protected Circuit<br>To Protected Circuit<br>To Protected Circuit<br>**----- End of picture text -----**<br>


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Aug 03, 2022 V.3 

Circuit Protection 

> Product Specification 4 10 

METAL OXIDE VARISTORS 

TMOV 14M(E,N) 

## **Dimensions** 

|Symbol|Symbol|BK’S M / E / N Varistor<br>Unit: mm|BK’S M / E / N Varistor<br>Unit: mm|BK’S M / E / N Varistor<br>Unit: mm|
|---|---|---|---|---|
|||14M|14E|14N|
|D (max.)||19.0|19.0|19.0|
|H (max.)||21.0|21.0|21.0|
|F (±1.0)||7.5|7.5|7.5|
|F1 (±1.0)||5.0|5.0|-|
|e (max.)|820K~121K|2.8|2.8|2.8|
||151K~391K|3.8|3.8|3.8|
||431K~621K|5.5|5.5|5.5|
||681K~911K|7.8|7.8|7.8|
||102K~122K|10.0|10.0|10.0|
|e1|820K~121K|1.3±0.8|1.3±0.8|-|
||151K~391K||||
||431K~621K||||
||681K~911K||||
||102K~122K||||
|E (max.)|820K~121K|8.8|8.8|8.8|
||151K~391K|9.8|9.8|9.8|
||431K~621K|11.5|11.5|11.5|
||681K~911K|13.8|13.8|13.8|
||102K~122K|16.0|16.0|16.0|
|L|(min.)|20.0|20.0|20.0|
|L3 (min.)||10.0|10.0|-|
|Φd (±0.05)||0.8|||



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Aug 03, 2022 V.3 

Circuit Protection 

> Product Specification 5 10 

METAL OXIDE VARISTORS 

TMOV 14M(E,N) 

## **Electrical characteristics** 

|Part<br>Number|Maximum<br>Allowable<br>Voltage|Maximum<br>Allowable<br>Voltage|Varistor<br>Voltage|Maximum<br>Clamping<br>Voltage|Maximum<br>Clamping<br>Voltage|Maximum<br>Peak Current<br>(8/20μs)|Maximum<br>Peak Current<br>(8/20μs)|Maximum<br>Energy<br>(Joule)|Maximum<br>Energy<br>(Joule)|Rated<br>Powe<br>r|Typical<br>Capacitanc<br>e<br>(Reference)|
|---|---|---|---|---|---|---|---|---|---|---|---|
||VAC(V<br>)|VDC(V<br>)|V1mA(V)|IP(A)|VC(V)|1<br>time|2<br>times|10/1000μ<br>s|2ms|(W)|@1KHz (pf)|
|||||||(A)||||||
|820KM(E,N)14|50|65|82(74~90)|50|155|4500|2500|27|22|0.6|2400|
|101KM(E,N)14|60|85|100(90~110)|50|165|4500|2500|33|28|0.6|2000|
|121KM(E,N)14|75|100|120(108~132)|50|200|4500|2500|40|32|0.6|1700|
|151KM(E,N)14|95|125|150(135~165)|50|250|6000|4500|50|35|0.6|1300|
|181KM(E,N)14|115|150|180(162~198)|50|300|6000|4500|58|40|0.6|1100|
|201KM(E,N)14|130|170|200(185~225)|50|340|6000|4500|70|50|0.6|1000|
|221KM(E,N)14|140|180|220(198~242)|50|365|6000|4500|78|55|0.6|900|
|241KM(E,N)14|150|200|240(216~264)|50|395|6000|4500|85|60|0.6|830|
|271KM(E,N)14|175|225|270(243~297)|50|455|6000|4500|100|70|0.6|740|
|301KM(E,N)14|190|250|300(270~330)|50|500|6000|4500|107|75|0.6|670|
|331KM(E,N)14|210|275|330(297~363)|50|550|6000|4500|115|80|0.6|610|
|361KM(E,N)14|230|300|360(324~396)|50|595|6000|4500|125|90|0.6|560|
|391KM(E,N)14|250|320|390(351~429)|50|650|6000|4500|140|100|0.6|510|
|431KM(E,N)14|275|350|430(387~473)|50|710|6000|4500|155|110|0.6|460|
|471KM(E,N)14|300|385|470(423~517)|50|775|6000|4500|175|125|0.6|430|
|511KM(E,N)14|320|415|510(459~561)|50|845|6000|4500|190|136|0.6|390|
|561KM(E,N)14|350|460|560(504~616)|50|920|6000|4500|200|140|0.6|360|
|621KM(E,N)14|385|505|620(558~682)|50|1025|6000|4500|210|150|0.6|320|
|681KM(E,N)14|420|560|680(612~748)|50|1120|6000|4500|220|155|0.6|290|
|751KM(E,N)14|460|615|750(675~825)|50|1240|6000|4500|225|160|0.6|270|
|781KM(E,N)14|485|640|780(702~858)|50|1290|6000|4500|240|165|0.6|260|
|821KM(E,N)14|510|670|820(738~902)|50|1355|6000|4500|245|170|0.6|240|
|911KM(E,N)14|550|745|910(819~1001)|50|1500|6000|4500|255|180|0.6|220|
|102KM(E,N)14|625|825|1000(900~1100)|50|1650|6000|4500|280|190|0.6|200|
|112KM(E,N)14|680|895|1100(990~1210)|50|1815|6000|4500|310|205|0.6|180|
|122KM(E,N)14|750|990|1200(1080~1320)|50|1980|6000|4500|338|215|0.6|150|



Notes: Leakage Current (@83% of V1mA) ： IR≤35μA (820K~122K). 

www.yageo.com 

Aug 03, 2022 V.3 

Circuit Protection 

> Product Specification 6 10 

METAL OXIDE VARISTORS 

TMOV 14M(E,N) 

## **Electrical Ratings** 

|Items|Test Condition/Description|Test Condition/Description|Requirement|
|---|---|---|---|
|Varistor Voltage|The voltage between two terminals with the specified measuring<br>current 1mA.DC applied is called Vb.||To meet the<br>Specified value|
|Maximum Allowable<br>Voltage|The recommended maximum sine wave voltage (RMS) or the<br>Maximum DC voltage can be applied continuously.|||
|Maximum Clamping<br>Voltage|The maximum voltage between two terminals with the<br>specification standard impulse current.<br>Applied waveform: 8/20μs<br>0<br>10<br>50<br>90<br>100<br>Time<br>Current (%)<br>Impulse Width<br>8µs<br>20µs<br>Crest value|||
|Rated Wattage|The maximum average power that can be applied within the<br>specified ambient temperature.|||
|Energy|The maximum energy within the varistor voltage change of ±10%<br>when one impulse of 10/1000μs or 2ms is applied.|||
|Withstanding Surge<br>Current|The maximum current within the varistor voltage change of ±10%<br>with the standard impulse current (8/20μs) applied one time.|||
|Varistor Voltage<br>Temp. Coefficient||V1mA@85℃-V1mA@25℃<br>V1mA@25℃<br>× 1<br>60<br>× 100%(%/℃)|≤0.05%/℃|
|||V1mA@-40℃-V1mA@25℃<br>V1mA@25℃<br>× 1<br>65<br>× 100%(%/℃)||



www.yageo.com 

Aug 03, 2022 V.3 

Circuit Protection 

Product Specification 

7 10 

METAL OXIDE VARISTORS 

TMOV 14M(E,N) 

## **Mechanical Characteristics** 

|Items|Test conditions / Methods|Test conditions / Methods|Specifications|
|---|---|---|---|
|Tensile Strength<br>of Terminals|Gradually applying the force specified<br>fixed for 10±1 sec.<br>Terminal diameter(mm)<br>0.5＜d≤0.8<br>0.8＜d≤1.25<br>1.25＜d|and keeping the unit<br>1.0<br>2.0<br>4.0<br>Force(kg)|No visible damage<br>|ΔV1mA/V1mA|≤5%|
|Bending Strength<br>of Terminals|Hold specimen and apply the force specified below to each<br>lead. Bend the specimen to 90°, then return to the original<br>position. Repeat the procedure in the opposite direction.<br>Terminal diameter(mm)<br>0.5＜d≤0.8<br>0.8＜d≤1.25<br>1.25＜d<br>0.5<br>1.0<br>2.0<br>Force(kg)||No visible damage<br>|ΔV1mA/V1mA|≤5%|
|Vibration|Frequency range: 10~55 Hz<br>Amplitude: 0.75mm or 98m/s2<br>Direction: 3 mutually perpendicular directions,2hrs each.||No visible damage<br>|ΔV1mA/V1mA|≤5%|
|Solder ability|Solder Temp: 245±5℃<br>Dipping Time: 2±0.5 sec||At least 95% of terminal<br>electrode is covered by<br>newsolder|
|Resistance to<br>Soldering Heat|Solder Temp: 260±5℃<br>Dipping Time:≤5 sec||No visible damage<br>|ΔV1mA/V1mA|≤10%|



## **Reliability** 

|Items|Test conditions / Methods|Specifications|
|---|---|---|
|High Temperature<br>Storage|Ambient Temp: 85±2℃<br>Duration: 1000hrs||ΔV1mA/V1mA|≤5%|
|Low Temperature<br>Storage|Ambient Temp: -40±2℃<br>Duration: 1000hrs||ΔV1mA/V1mA|≤5%|
|Humidity|Ambient Temp: 40±2℃, 90~95% R.H.<br>Duration: 1000hrs||ΔV1mA/V1mA|≤5%|
|Temperature Cycle|The conditions shown below shall be repeated 5 cycles<br>Step<br>Temperature (℃)<br>Period (minutes)<br>1<br>-40±3<br>30±3<br>2<br>Room temperature<br>15±3<br>3<br>85±3<br>30±3<br>4<br>Room temperature<br>15±3|No visible damage<br>|ΔV1mA/V1mA|≤5%|
|High Temperature<br>Load|Ambient Temp: 85±2℃Duration: 1000hrs<br>Load: Max. Allowable Voltage In AC eara.||ΔV1mA/V1mA|≤10%|
|Damp Heat Load|Ambient Temp: 40±2℃, 90~95% R.H.<br>Duration: 1000hrs     Load: Max. Allowable Voltage|No visible damage<br>|ΔV1mA/V1mA|≤10%|
|Voltage Proof|Metal balls method, 2500Vac 1 min.|No visible damage|



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Aug 03, 2022 V.3 

> Product Specification 8 ~~[—)~~ 10 

Circuit Protection 

METAL OXIDE VARISTORS 

TMOV 14M(E,N) 

## **Maximum Leakage Current and Maximum Clamping Voltage Curve** 

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Aug 03, 2022 V.3 

> Product Specification 9 ~~=~~ 10 

Circuit Protection 

METAL OXIDE VARISTORS 

TMOV 14M(E,N) 

**Maximum Surge Current Derating Curve** 

www.yageo.com 

Aug 03, 2022 V.3 

Circuit Protection 

> Product Specification 10 10 

METAL OXIDE VARISTORS 

TMOV 14M(E,N) 

## **Soldering Recommendation** 

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**----- Start of picture text -----**<br>
Preheating Soldering Cooling<br>Max: 265<br>110±10<br>25<br>60~90 ＜ 1 2~6 Time (sec.)<br>℃ )<br>Temperature (<br>**----- End of picture text -----**<br>


## **Marking code** 

## **Quantity** 

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**----- Start of picture text -----**<br>
Packaging Dimensions (Unit: mm)  Quantity<br>Bulk<br>,<br>200pcs/bag<br>Fr<br>66 Max. 2bags/box<br>ye L y<br>252 Max.<br>160 Max.<br>**----- End of picture text -----**<br>


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Aug 03, 2022 V.3 

YAGEO 

Product specification 

## Circuit Protection Components 

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YAGEO products are designed for general purpose applications under normal operation and usage conditions. Please contact YAGEO for the applications listed below which require especially high reliability for the prevention of defects which might directly cause damage to the third party's life, body or property: Aerospace equipment (artificial satellite, rocket, etc.), Atomic energy-related equipment, Aviation equipment, Disaster prevention equipment, crime prevention equipment, Electric heating apparatus, burning equipment, Highly public information network equipment, data-processing equipment , Medical devices, Military equipment, Power generation control equipment, Safety equipment, Traffic signal equipment, Transportation equipment and Undersea equipment, or for any other application or use in which the failure of YAGEO products could result in personal injury or death, or serious property damage. Particularly **YAGEO Corporation and its affiliates do not recommend the use of commercial or automotive grade products for high reliability applications or manned space flight.** 

Information provided here is intended to indicate product specifications only. YAGEO reserves all the rights for revising this content without further notification, as long as products are unchanged. Any product change will be announced by PCN. 

www.yageo.com

Updated at June 4, 2026

Founded in 1977, Yageo Corporation is a premier global provider of passive component solutions. Through strategic acquisitions of industry leaders such as Pulse Electronics, BrightKing, and KEMET, the company has built a comprehensive product portfolio and established a commanding presence across the electronics industry, particularly in capacitors, resistors, and circuit protection technologies. Our extensive range of Yageo components is heavily focused on their advanced circuit protection solutions. We carry a comprehensive selection of transient voltage suppression (TVS) devices, featuring hundreds of TVS diodes and varistors engineered to safeguard sensitive electronics from destructive voltage transients. This core offering is complemented by a robust lineup of gas discharge tubes (GDTs) designed for reliable overvoltage protection in demanding environments. Beyond voltage suppression, we supply a variety of Yageo's specialized thermistor products, including resettable fuses, inrush current limiting (ICL) NTC thermistors, and precision temperature sensing components. Rounding out our selection are high-performance Yageo RF and single-band chip antennas, providing reliable, space-efficient connectivity for modern wireless applications.

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