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