Metal Oxide Varistors
14D Series
Features
Wide operating voltage (V1mA) range from 18V to
1800V
Fast responding to transient over-voltage.
Large absorbing transient energy capability.
Low clamping ratio and no following-on current.
General Information
Surge protection in consumer electronics
Surge protection in industrial electronics
Relay and electromagnetic valve surge absorption
General Characteristics
Transistor, diode, IC, thyristor or triac semiconductor
Body: Nickel Plated
protection
Devices with No Leads: Nickel Plated
Surge protection in electronic home appliances, gas and
Storage Temperature: -40 ºC to +125ºC
petroleum appliances
Axial Devices: Tin Plated
Agency: UL( E479668),CUL( E479668),
CQC(22001337353),TUV(J50541477)
Part Number Code
1
4
Element Diameter
D
4
7
1
K
J
Type
Nominal Varistor Voltage
Surge Series
D:Disk
471=47*101V
No Suffix:Standard
Type
Varistor Voltage
Tolerance
J:High Surge Type
K = ±10 %
Agency Information
Agency Information
Agency File Number
Operating temperature range
UL
E479668
- 40°C to 125°C
CUL
E479668
- 40°C to 105°C
CQC
22001337360
- 40°C to +125°C
TUV
J50541477
- 40°C to +125°C
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
Revised: 2022-11-21
Version: A2
Page 1 of 10
Metal Oxide Varistors
14D Series
Electrical Characteristics
Type Number
Varistor
Voltage
Max. Allowable
Voltage
Max. Energy
(10/1000μs)
VAC(V) VDC(V)
(J)
(J)
Standard High Surge
Standard
High
Surge
V1mA(V)
14D180K
/
15~22
11
14
5.7
14D220K
/
20~26
14
18
14D270K
/
24.3~31.1
17
14D330K
/
29.7~37.9
20
14D390K
/
35.2~44.8
14D470K
/
14D560K
Max. Clamping
Voltage
（8/20μs）
Withstanding Surge
Current（8/20μs）
Typical
Rated
Capacitance
Power
(Reference)
IP(A)
VC(V)
I(A)
Standard
I(A)
High Surge
(W)
@1KHz(pf)
/
10
38
1000
/
0.1
18000
7.0
/
10
43
1000
/
0.1
15000
22
8.5
/
10
53
1000
/
0.1
10000
26
10
/
10
65
1000
/
0.1
8500
25
31
12
/
10
77
1000
/
0.1
7500
43~53
30
38
15
/
10
93
1000
/
0.1
6500
/
51~63
35
45
18
/
10
110
1000
/
0.1
5600
14D680K
/
62~76
40
56
21
/
10
135
1000
/
0.1
4700
14D820K
14D820KJ
74~90
50
65
26
31
50
135
4500
6000
0.6
3900
14D101K
14D101KJ
90~110
60
85
32
38
50
165
4500
6000
0.6
3400
14D121K
14D121KJ
108~132
75
100
38
46
50
200
4500
6000
0.6
3100
14D151K
14D151KJ
135~165
95
125
47
56
50
250
4500
6000
0.6
3000
14D181K
14D181KJ
162~198
115
150
57
60
50
300
4500
6000
0.6
1030
14D201K
14D201KJ
185~225
130
170
63
82
50
340
4500
6000
0.6
970
14D221K
14D221KJ
198~242
140
180
69
90
50
360
4500
6000
0.6
840
14D241K
14D241KJ
216~264
150
200
76
98
50
395
4500
6000
0.6
710
14D271K
14D271KJ
243~297
175
225
85
116
50
455
4500
6000
0.6
650
14D301K
14D301KJ
270~330
195
250
95
128
50
505
4500
6000
0.6
600
14D331K
14D331KJ
297~363
210
275
104
140
50
550
4500
6000
0.6
550
14D361K
14D361KJ
324~396
230
300
113
158
50
595
4500
6000
0.6
500
14D391K
14D391KJ
351~429
250
320
123
170
50
650
4500
6000
0.6
480
14D431K
14D431KJ
387~473
275
350
136
185
50
710
4500
6000
0.6
440
14D471K
14D471KJ
423~517
300
385
148
205
50
775
4500
6000
0.6
420
14D511K
14D511KJ
459~561
320
418
148
220
50
842
4500
6000
0.6
390
14D561K
14D561KJ
504~616
350
460
148
240
50
920
4500
6000
0.6
360
14D621K
14D621KJ
558~682
385
505
148
250
50
1025
4500
6000
0.6
320
14D681K
14D681KJ
612~748
420
560
148
260
50
1120
4500
6000
0.6
290
14D751K
14D751KJ
675~825
460
615
158
270
50
1240
4500
6000
0.6
260
14D781K
14D781KJ
702~858
485
640
164
275
50
1290
4500
6000
0.6
230
14D821K
14D821KJ
738~902
510
670
172
280
50
1355
4500
6000
0.6
230
14D911K
14D911KJ
819~1001
550
745
191
295
50
1500
4500
6000
0.6
200
14D951K
14D951KJ
855~1045
580
780
199
305
50
1570
4500
6000
0.6
190
14D102K
14D102KJ
900~1100
625
825
210
335
50
1650
4500
6000
0.6
180
14D112K
14D112KJ
990~1210
680
895
231
360
50
1815
4500
6000
0.6
150
14D142K
14D142KJ
1260~1540
870
1150
295
370
50
2310
4500
6000
0.6
140
14D152K
14D152KJ
1350~1650
900
1220
312
375
50
2475
4500
6000
0.6
140
14D182K
14D182KJ
1620~1980
1000
1465
378
450
50
2970
4500
6000
0.6
120
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
Revised: 2022-11-21
Version: A2
Page 2 of 10
Metal Oxide Varistors
14D Series
Electrical Ratings
Items
Test Condition/Description
Varistor Voltage
The voltage between two terminals with the specified measuring current 1mA.DC applied is called
Vb.
Maximum Allowable
Voltage
Requirement
The recommended maximum sine wave voltage (RMS) or the Maximum DC voltage can be
applied continuously.
The maximum voltage between two terminals with the specification standard impulse current.
Applied waveform: 8/20μs
I
1.0
0.9
Maximum Clamping
Voltage
B
0.5
T2
0.1
0.0
To meet the
Specified value
C
O1
T
t
T1
30% max.
T1=1.25*T=8μs±20%
T2=20μs±20%
Rated Wattage
The maximum average power that can be applied within the specified ambient temperature.
Energy
The maximum energy within the varistor voltage change of ±10% when one impulse of 10/1000μs
or 2ms is applied.
Withstanding Surge
Current
The maximum current within the varistor voltage change of ±10% with the standard impulse
current (8/20μs) applied one time.
The change of Vb shall be measured after the impulse listed below which is applied 10,000 times
continuously with the interval of ten seconds at room temperature.
Surge Life
14Φ series
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
180K to 680K
75A (8/20μs)
820K to 182K
150A (8/20μs)
Revised: 2022-11-21
Version: A2
ΔVb
≤ ± 10%
Vb
Page 3 of 10
Metal Oxide Varistors
14D Series
Soldering Recommendation
Wave Lead Free Soldering Recommendation
300
Preheating
250
Temperature(°C)
Soldering
Maximum Wave 265°C
Cooling
Item
Conditions
Peak Temperature
265ºC
Dipping Time
10 seconds (max.)
Soldering
1 time
200
150
100
50
0
0
0.5
1
1.5
2
2.5
Time(minutes)
3
3.5
4
Recommendation Reworking Conditions with Soldering Iron
Item
Conditions
Temperature of Soldering Iron-tip
360ºC (max.)
Soldering Time
3 seconds (max.)
Distance from Varistor
2mm (min.)
Dimensions
TABLE 1
Symbol
Millimeters
Inches
H(max)
20.0
0.787
L(min)
15.0
0.591
D(max)
17.0
0.669
D1(±1.0)
7.5
0.295
K(max)
2.0
0.079
T(max)
TABLE 2
d(±0.1)
0.8
0.031
Packaging Quantity: 250pcs/bag
TABLE 2---T(max.)
Model
Millimeters
Inches
Model
Millimeters
Inches
18V~39V
4.6
0.181
430V~560V
6.2
0.244
47V~68V
5.1
0.201
620V~780V
7.2
0.283
82V~150V
4.6
0.181
820V~1200V
8.4
0.331
180V~270V
5.1
0.201
1300V~1500V
9.5
0.374
330V~390V
5.6
0.220
1600V-1800V
11.3
0.445
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
Revised: 2022-11-21
Version: A2
Page 4 of 10
Metal Oxide Varistors
系列
Series
14D
压敏电压
Varistor
Voltage
751K～182K
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
14D Series
编带包装数量 Taping Packaging
Quantity
数量（K）/内盒
QTY(k)/Lnner Box
数量（K)/箱
QTY(k)/Carton
0.4
3.2
Revised: 2022-11-21
Version: A2
Page 5 of 10
Metal Oxide Varistors
14D Series
安全注意事项
SAFETY PRECAUTIONS
使用压敏电阻器时，压敏电阻器周围条件（设备设计中的材料、环境、电源条件、电路条件等）发生异常时，则可能引发火灾、触
电、烧伤、以及产品故障。
In case that a varistor is used, if an abnormality takes place because of peripheral conditions of the varistor(material,
environments,power source conditions, circuit conditions, etc. In equipment design), fire, electric shock, burn, or product failure
may be occur.
下列内容为使用时的相关注意事项，请认真确认后再行使用。如对未及事项有疑议，请速与我公司担当部门联系。
The precautions for this product are described below; understand the content thoroughly before usage. For more questions,
contact us.
1
严格遵守事项
Precautions to be strictly observed
1.1
额定性能确认
Confirmation of performance ratings
请遵守压敏电阻器的最大连续工作电压，耐冲击电流、最大能量耐量、浪涌寿命、额定功率和操作温度范围等额定性能的规定，在规
定范围内使用。
Use the varistor within its rated range of performance such as the maximum continuous operating voltage, withstanding surge
current, maximum energy, impulse life, rated power and operating temperature range。
超出规定范围使用，则会造成压敏电阻器性能劣化，破坏元件，严重可引起压敏电阻器冒烟或起火。
If used outside the range, the varistor can be degrade and have element fracture, which may result in smoking and ignition.
1.2
为避免意外现象发生，请采用如下对策
To avoid accidents due to unexpected phenomena, take the following measures
1) 压敏电阻器受损时，可能出现破碎飞散，因此要对集成产品加保护盖或外盒。
In the event of fracture of the varistor, its pieces may scatter; hence, put the case or cover of the set product in place.
2) 请勿安装在可燃物品（塑料电线、树脂合成物等）附近。若无法避免，请使用不燃性保护外壳。
Do not install the varistor near combustible substances (polyvinyl chloride wires, resin moldings, etc.). If it’s difficult to do, install a
nonflammable cover.
3) 线间使用
Across-the-line use
在线间使用时，将保险丝与压敏电阻器串联。
When the varistor is used across a line, put a current fuse in series with the varistor.
4) 线-地间使用
Use between line to ground
a) 在线-地间使用时，压敏电阻器短路时会产生接地电阻，电流保险丝不会熔断，可能引起压敏电阻器外涂层树脂冒烟或起火。
If the case that the varistor is used between a line to the ground, the short circuit of the varistor may not blow the current fuse
because of grounding resistance, which may cause smoking and ignition of the varistors exterior resin.
为避免上述情况，请在电源端安装漏电断路器。如无漏电断路器，则需将电流保险丝与温度保险丝串联使用。
As the measure against it, install an earth leakage breaker on the power supply side of the varistor position. If no earth leakage
breaker is installed, use a
thermal fuse together with a current fuse in series.
b) 在带电部件与金属部件之间使用压敏电阻器时，压敏电阻器短路时有触电危险，故请将金属部件接地或勿与人体接触。
If the case that the varistor is used between a live parts to metal case, an electric shock may develop at a shortcircuit of the
varistor; hence, ground the metal case to the ground or keep it from the human body.
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
Revised: 2022-11-21
Version: A2
Page 6 of 10
Metal Oxide Varistors
2
14D Series
使用注意事项
Application notes
2.1 注意下列事项，可能导致压敏电阻器寿命缩短或引发故障
Pay attention to the following items to avoid the shortened life and failure of the varistor.
1) 电路条件
Circuit conditions
a) 选定的压敏电阻器的电压最大值在最大连续工作电压值之上。
Select a varistor of which the maximum voltage including fluctuations in source voltage allows for the maximum permissible circuit
voltage.
b) 短间隔性地施加浪涌时（施加抗干扰模拟试验电压时）
，不可超过压敏电阻器的额定功率。
In cases that surges are intermittently applied at short intervals (for example, in case that the voltage of the noise simulator test is
implemented etc.),
c) 选定压敏电阻器时，须按照表 1 的标准产品型号。
Select a varistor recommended in table 1.
① 线间使用
Across-the-line use
单相三线式连线时单独配线负荷导致负荷不平衡、电压线和中性线短路、中性线欠损、容量性负荷情况下开闭时的共振等，
将导致电源电压的上升，可能使用表 1 中标有＊的产品型号。
If possible, use a part no. Marked with ✽ in case of voltage temporarily rises load unbalance of separately-wired
loads, short between hot and neutral-line, open of neutral line in single-phase-three-wired system, and due to
resonance at switching for a capacitive, inductive load.
② 线-地间使用
Used between line to ground
出现故障时，对地电压将上升，因此，请使用附表 1 中推荐的产品型号。
Use a different part no. From “across-the-line use” as table 1, because of raising voltage in case of “line to ground fault”.
进行设备的绝缘电阻试验（DC500V）时，请使用表 1 中推荐的标有✽✽的产品型号。使用不可清除绝缘性能试验的压敏电阻电压
时，在一定的电路条件下，试验时可将压敏电阻器从电路上取下。
Use a varistor marked with ❉❉ in table 1, in case of the insulation resistance test (500Vdc) for equipment. When using a part
of the varistor voltage that the insulation efficiency examination can not be cleared, there is a case where the varistor can be
done by removing it from the circuit depending on the circuit condition.
进行设备的耐电压试验（AC1000V 或 AC1200V）时，请使用表 1 中推荐的标有✽✽✽的产品型号。
Use a varistor marked with ✽✽✽ in table 1, in case of the withstanding voltage test (1000Vac or 1200Vac) for equipment.
d)
关于电流保险丝
Concerning current fuse
① 所用压敏电阻器与电流保险丝的额定电流，一般推荐按下表进行选定。此外，在用户端，当压敏电阻器损坏时，确认其设
备是否会发生 2 次伤害。
We recommend selecting a varistor and the rated current of a current fuse as follows. Finally, please be sure that there is
no danger if the varistor mounted on the equipment breaks
规格 Specs
05D
07D
10D
14D
20D
保险丝额定电压
≤2A
≤5A
≤5A
≤10A
≤10A
Fuse rated current
② 保险丝的插入部位建议按表 1 操作。
The recommended fuse position is shown in table 1.
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
Revised: 2022-11-21
Version: A2
Page 7 of 10
Metal Oxide Varistors
e)
14D Series
温度保险丝
Concerning thermal fuse
将压敏电阻器与温度保险丝连接时，用户端请尽量选用热结合较好的保险丝。
Set a thermal fuse to get high thermal conductivity with varistor.
表 1 – 压敏电阻器的适用范例
类别
线间使用
线-地使用
Type
Across-the-line use
Use between line to ground
DC/AC 3-phase
DC/AC 单相
AC 3-phase
三相
连线举例
Connections example
MOV
电源电压
压敏电压
Source voltage
471,511,621❉
821❉❉, 182❉❉❉
201~361❉
AC120V
241~431❉
AC200V
431-561❉
AC220V
471-621❉
AC240V
511-621❉
varistor
AC380V
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
Varistor
AC220V
AC100V
MOV3
压敏电阻
AC100V
选型举例
Example of
电源电压
Source voltage
Varistor
压敏电阻
MOV1
MOV
MOV2
MOV4
821
Revised: 2022-11-21
Version: A2
AC230V
511,621❉
AC240V
821❉❉, 182❉❉❉
AC380V
182❉❉❉
112❉❉,
Page 8 of 10
Metal Oxide Varistors
14D Series
2.2 使用环境
Operating environments
1) 压敏电阻器不可在室外使用。
The varistor is designed to be used indoors. Do not use it exposed outdoors.
2) 不可在阳光直射场所、发热源附近或温度超过使用温度范围的场所使用。
Do not use the varistor in places exposed to temperatures beyond the operating temperature range, such as places exposed
to sunlight and vicinities of heating equipment.
3) 不可在淋雨、蒸汽、高湿度的场所使用。
Do not use the varistor in places exposed to high temperatures and high humidity, such as places exposed directly to rain,
wind, dew condensation, and vapor.
4) 不可在粉尘或盐分较多的场所以及被腐蚀性气体污染的环境中使用。
Do not use the varistor in dusty and salty places and atmospheres polluted by corrosive gases.
2.3 加工条件
Processing conditions
1) 不可采用可能导致外涂层树脂劣化的溶剂（稀释剂、丙酮等）进行清洗。
Do not wash the varistor by such solvents (thinner, acetone, etc) as its exterior resin deteriorates.
2) 不可施加可能导致外涂层树脂或元件出现破损的冲击或撞击、压力。
Do not apply a strong vibration or shock (by falling, etc) to the varistor, cracking to its exterior resin and element may occur.
3) 将压敏电阻器进行树脂镀膜（含护膜塑模）时，不可使用可能导致压敏电阻器劣化的树脂。
When coating the varistor with resin (including molding), do not use such resin.
4) 压敏电阻器外涂层树脂附近的引线部位不可进行强烈折弯或施加外力。
Do not bend the varistor lead wires at the position close to its varistor exterior resin, or apply external force to the position.
5) 焊接时，请在如下条件下进行。且不可将构成压敏电阻器的焊接部位或绝缘材料熔化。
When soldering the varistor lead wires, follow the recommended conditions and do not melt the solder and insulating
materials constituting the varistor.
焊接方式
推荐条件
Soldering method
Recommended condition
波峰焊
Flow soldering
注意事项
Attention item
260°C, 10 秒以内
260°C, within 10 sec
引线型不是回流焊对象产品
Lead wires type is not reflow soldering object part.
上述以外的条件下使用时，请用户端自行确认。
For use other than the above conditions, please the client to confirm.
仅限进行 1 次返工，烙铁温度 350°c 以下，时间控制在 5 秒以内。
Only 1 times rework, soldering iron temperature should not exceed 350°c and should not be applied for more than 5
■
推荐焊接条件
Soldering temperature-time profile to recommend
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
Revised: 2022-11-21
Version: A2
Page 9 of 10
Metal Oxide Varistors
14D Series
2.4.长期保管
Long-term storage
1) 压敏电阻器不可保存在高温、高湿场所。保存场所室温 40 ° C 以下，湿度 75%RH 以下，保存期限为 1 年。
Do not store the varistor under high temperature and high humidity. Store it at a temperature up to 40 °C and at humidity
below 75% RH, and use it within 1 year.
长期间保管（1 年以上）时，使用时请确认产品的可焊性。
Before using the varistor that has been stored for a long period (1 years or longer), confirm the solderability.
2) 不可保存在腐蚀性气体（硫化氢、亚硫酸、氯气、氨气等）环境中。
Avoid atmospheres full of corrosive gases (hydrogen sulfide, sulfurous acid, chlorine, ammonia, etc).
3) 保存场所避免阳光直射、结露等。
Avoid direct sunlight and dew condensation.
3 说明
Notices
用于可靠性要求极高的设备（航空航天设备、医疗设备等）时，请事先至本公司咨询使用型号和保护措施等相关事宜。
In cases that the varistor is used in equipment (aerospace equipment, medical equipment, etc) requiring extremely high
reliability, ask us for a selection of part no., and protection coordination, etc in advance.
若未按照产品规格书记载事项进行操作，并由此导致出现异常时，本公司不负任何责任。
Note that we do not take any responsibility for faults and abnormalities resulting from the use not in conformity with the
contents of entries in the delivery specification.
出现使用电路电压的异常上升、超高浪涌的侵入等不可预期因素时，可能导致压敏电阻器起火。为防止延烧到使用设备上，外部
结构材料需使用阻燃材料进行多重保护。
There is a possibility that the varistor will unexpectedly cause smoke or ignite because of an abnormal rise of the circuit
voltage and invasion of excessive surge. To prevent that accident from spreading over the equipment and not to expand the
damage, use multiplex protection such as the adoption of frame- retardant materials for housing parts and structural parts.
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
Revised: 2022-11-21
Version: A2
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