Metal Oxide Varistors
Features
l
Wide operating voltage (V1mA) range from 18V to
1800V
l
Fast responding to transient over-voltage.
l
Large absorbing transient energy capability.
l
Low clamping ratio and no following-on current.
14D Series
General Information
l
Surge protection in consumer electronics
l
Surge protection in industrial electronics
l
Relay and electromagnetic valve surge absorption
l
Transistor, diode, IC, thyristor or triac semiconductor
protection
l
Surge protection in electronic home appliances, gas
and petroleum appliances
General Characteristics
l
Body: Nickel Plated
l
Devices with No Leads: Nickel Plated
l
Operating Temperature: -40ºC to +85ºC
l
Storage Temperature: -40
ºC
to +125ºC
l
Axial Devices: Tin Plated
Part Number Code
1
4
D
4
7
1
K
J
Element Diameter
Type
D:Disk
Nominal Varistor Voltage
471=47*10
1
V
Varistor Voltage
Tolerance
K =
±10
%
Surge Series
No Suffix:Standard
Type
J:High Surge Type
Specifications are subject to change without notice.
Please refer to http://
www.ruilon.com.cn
for current information.
Revised: 2018-07-17
Page:1
Metal Oxide Varistors
Electrical Characteristics
Type Number
High
Surge
/
/
/
/
/
/
/
/
14D820KJ
14D101KJ
14D121KJ
14D151KJ
14D181KJ
14D201KJ
14D221KJ
14D241KJ
14D271KJ
14D301KJ
14D331KJ
14D361KJ
14D391KJ
14D431KJ
14D471KJ
14D511KJ
14D561KJ
14D621KJ
14D681KJ
14D751KJ
14D781KJ
14D821KJ
14D911KJ
14D951KJ
14D102KJ
14D112KJ
14D152KJ
14D182KJ
Varistor
Voltage
V
1mA
(V)
16~20
20~24
24~30
30~36
35~43
42~52
50~62
61~75
74~90
90~110
108~132
135~165
162~198
185~225
198~242
216~264
243~297
270~330
297~363
324~396
351~429
387~473
423~517
459~561
504~616
558~682
612~748
675~825
702~858
738~902
819~1001
855~1045
900~1100
990~1210
1350~1650
1620~1980
Max. Allowable
Voltage
V
AC
(V) V
DC
(V)
11
14
17
20
25
30
35
40
50
60
75
95
115
130
140
150
175
195
210
230
250
275
300
320
350
385
420
460
485
510
550
580
625
680
900
1000
14
18
22
26
31
38
45
56
65
85
100
125
150
170
180
200
225
250
275
300
320
350
385
418
460
505
560
615
640
670
745
780
825
895
1220
1465
Max. Energy
(2ms)
(J)
(J)
Standard High Surge
3.2
4.0
4.9
5.9
7.0
8.5
10.1
12.2
14.8
18.0
21.6
27.0
32.4
36.0
39.6
43.2
48.6
54.0
59.4
64.8
70.2
77.4
84.6
84.6
84.6
84.6
84.6
90.0
93.6
98.4
109.2
113.7
120.0
132.0
179.0
216.0
/
/
/
/
/
/
/
/
18.5
22.5
27.0
33.8
40.5
45.0
49.5
54.0
60.8
67.5
74.3
81.0
87.8
96.8
105.8
105.8
105.8
105.8
105.8
112.5
117.0
123.0
136.5
142.1
150.0
165.0
223.0
270.0
Max. Clamping
Voltage
（8/20μs）
I
P
(A)
10
10
10
10
10
10
10
10
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
V
C
(V)
38
43
53
65
77
93
110
135
135
165
200
250
300
340
360
395
455
505
550
595
650
710
775
842
920
1025
1120
1240
1290
1355
1500
1570
1650
1815
2475
2970
Withstanding Surge
Current（8/20μs）
I(A)
I(A)
Standard High Surge
1000
1000
1000
1000
1000
1000
1000
1000
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
4500
/
/
/
/
/
/
/
/
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
14D Series
Typical
Rated
Capacitance
Power
(Reference)
(W)
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
@1KHz(pf)
18000
15000
10000
8500
7500
6500
5600
4700
3900
3400
3100
3000
1030
970
840
710
650
600
550
500
480
440
420
390
360
320
290
260
230
230
200
190
180
150
140
120
Standard
14D180K
14D220K
14D270K
14D330K
14D390K
14D470K
14D560K
14D680K
14D820K
14D101K
14D121K
14D151K
14D181K
14D201K
14D221K
14D241K
14D271K
14D301K
14D331K
14D361K
14D391K
14D431K
14D471K
14D511K
14D561K
14D621K
14D681K
14D751K
14D781K
14D821K
14D911K
14D951K
14D102K
14D112K
14D152K
14D182K
Note: The energy (10/1000μs) is about 1.4 times of energy(2ms)
Specifications are subject to change without notice.
Please refer to http://
www.ruilon.com.cn
for current information.
Revised: 2018-07-17
Page:2
Metal Oxide Varistors
Electrical Ratings
Items
Varistor Voltage
Maximum Allowable
Voltage
Test Condition/Description
The voltage between two terminals with the specified measuring current 1mA.DC applied is called
Vb.
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
B
14D Series
Requirement
Maximum Clamping
Voltage
0.5
T
2
To meet the
Specified value
t
0.1
0.0
O
1
C
T
T
1
30% max.
T1=1.25*T=8μs±20%
T2=20μs±20%
Rated Wattage
Energy
Withstanding Surge
Current
The maximum average power that can be applied within the specified ambient temperature.
The maximum energy within the varistor voltage change of
±10%
when one impulse of 10/1000μs
or 2ms is applied.
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
180K to 680K
14Φ series
820K to 182K
75A (8/20μs)
150A (8/20μs)
ΔVb
≤ ±10%
Vb
Specifications are subject to change without notice.
Please refer to http://
www.ruilon.com.cn
for current information.
Revised: 2018-07-17
Page:3
Metal Oxide Varistors
Soldering Recommendation
Wave Lead Free Soldering Recommendation
Item
300
Preheating
Maximum Wave 265°C
Soldering
Cooling
14D Series
Conditions
265ºC
10 seconds (max.)
1 time
Peak Temperature
Dipping Time
Soldering
250
Temperature(°C)
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
Temperature of Soldering Iron-tip
Soldering Time
Distance from Varistor
Conditions
360ºC (max.)
3 seconds (max.)
2mm (min.)
Dimensions
TABLE 1
Symbol
H(max)
L(min)
D(max)
D1(±1.0)
T(max)
d(±0.1)
Millimeters
20.0
15.0
17.0
7.5
TABLE 2
0.8
0.031
Inches
0.787
0.591
0.669
0.295
Packaging Quantity: 250pcs/bag
TABLE 2---T(max.)
Model
180K~390K
470K~680K
820K~151K
181K~271K
331K~391K
Millimeters
7.5
8.0
8.5
9.0
9.5
Inches
0.295
0.315
0.335
0.354
0.374
Model
431K~561K
621K~781K
821K~112K
152K
182K
Millimeters
10.0
10.5
11.0
11.5
12.0
Inches
0.394
0.413
0.433
0.453
0.472
Specifications are subject to change without notice.
Please refer to http://
www.ruilon.com.cn
for current information.
Revised: 2018-07-17
Page:4
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