ELECTRONICS
Metal
Oxide
Varistors
14D Series
Circuit Protection
System
Specifications are subject to change without notice.
Please refer to
http://www.ruilon.com
for current information.
Metal Oxide Varistors - 14D Series
Features
1. Wide operating voltage (V1mA) range from 8V to 1800V.
2. Fast responding to transient over-voltage.
3. Large absorbing transient energy capability.
4. Low clamping ratio and no following-on current.
General Information
The MOV-14DxxxK Series of 14mm radial leaded varistor devices protects against overvoltage transients such as lightning,
power contact and power induction. The metal oxide varistors offer a choice of varistor voltages from 18 V to 1800 V and Vrms
voltages from 11 V to 1000 V. The devices have a high current handling, high energy absorption capability and fast response
times to protect against transient faults up to rated limits.
General Characteristics
No Radioactive Material Storage Temperature: -55ºC to +125ºC
Operating Temperature: -55ºC to +85ºC
Body: Nickel Plated
Leads: Surface-mount, Axial Devices: Tin Plated
Devices with No Leads: Nickel Plated
Product Name
1
4
D
4
7
1
K
Disc Diameter
14=14MM
Type
D: Disk
S: Square
Nominal Varistor Voltage
471=47*101V
Varistor Voltage
Tolerance
K = 10 %
Circuit Protection
System
Specifications are subject to change without notice.
Please refer to
http://www.ruilon.com
for current information.
Page:1
Metal Oxide Varistors - 14D Series
Electriacl Characteristics
Type Number
Maximum
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
190
210
230
250
275
300
320
350
385
420
460
485
510
550
625
680
750
1000
14
18
22
26
31
38
45
56
65
85
100
125
150
170
180
200
225
250
275
300
320
350
385
415
460
505
560
615
640
670
745
825
895
990
1465
Varistor Voltage
Maximum
Clamping
Voltage
I
P
(A) V
C
(V)
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
36
43
53
66
77
93
100
135
135
165
200
250
300
340
360
395
455
500
550
595
650
710
775
845
925
1025
1120
1240
1290
1355
1500
1650
1815
1980
2970
Withstanding
Surge Current
I(A)
I(A)
Maximum Energy Rated
(10/1000μs)
Power
(J)
(J)
(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
Typical
Capacitance
(Reference)
@1KHz(pf)
11100
9100
7400
6100
5100
4300
3600
2900
2400
2000
1700
1300
1100
1000
900
830
740
670
610
560
510
460
430
390
360
320
290
270
260
240
220
200
180
150
130
Standard
14D180K
14D220K
14D270K
14K330K
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
14D102K
14D112K
14D122K
14D182K
High Surge
14D180KJ
14D220KJ
14D270KJ
14K330KJ
14D390KJ
14D470KJ
14D560KJ
14D680KJ
14D820KJ
14D101KJ
14D121KJ
14D151KJ
14D181KJ
14D201KJ
14D221KJ
14D241KJ
14D271KJ
14D301KJ
14D331KJ
14D361KJ
14D391KJ
14D431KJ
14D471KJ
14D511KJ
14D561KJ
14D621KJ
14D681KJ
14D751KJ
14D781KJ
14D821KJ
14D911KJ
14D102KJ
14D112KJ
14D122KJ
14D182KJ
V
1mA
(V)
18(15~21.6)
22(19.5~26)
27(24~30)
33(29.5~36.5)
39(35~43)
47(42~54)
56(50~62)
68(61~75)
82(74~90)
100(90~110)
120(108~132)
150(135~165)
180(162~198)
200(180~220)
220(198~242)
240(216~264)
270(243~297)
300(270~330)
330(297~363)
360(324~396)
390(351~429)
430(387~473)
470(423~517)
510(459~561)
560(504~616)
620(558~682)
680(612~748)
750(675~825)
780(702~858)
820(738~902)
910(819~1001)
1000(900~1100)
1100(990~1210)
1200(1080_1320)
1800(1620~1980)
Standard
High Surge
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
2000
2000
2000
2000
2000
2000
2000
2000
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
4.0
5.0
6.0
7.5
8.6
10.0
11.0
14.0
22.0
28.0
32.0
40.0
50.0
57.0
60.0
63.0
70.0
77.0
85.0
93.0
100
115
125
125
125
125
130
143
148
157
175
190
213
213
250
7.0
8.0
10.0
12.0
13.0
17.0
20.0
24.0
27.0
33.0
40.0
53.0
60.0
70.0
78.0
84.0
99.0
108
115
130
140
155
175
180
185
190
200
210
220
235
255
280
310
310
335
Circuit Protection
System
Specifications are subject to change without notice.
Please refer to
http://www.ruilon.com
for current information.
Page:2
Metal Oxide Varistors - 14D Series
Electrical Rating
ltem
Test Condition / Description
The voltage between two terminals with the specified measuring current 1mA.
DC applied is call Vb.
Requirement
Varistor Voltage
Maximum Allowable
The recommended maximum sine wave voltage (RMS) or the maximum DC
Voltage
voltage can be applied continuously.
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
of10/1000μsec. or 2 msec. is applied.
To meet
the specified
value
Rated Wattaget
IEnergy
Withstanding Surge
The maximum current within the varistor voltage change of ±10% with the standard
Current
impulse current (8/20μsec.) applied one time.
The change of Vb shall be measured after the impulse listed below is applied 10,000
times continuously with the interval of ten seconds at room temperature.
180K to 680K
5D series
820K to 751K
180K to 680K
7Dseries
820K to 821K
Surge Life
10D series
820K to 182K
180K to 680K
14D series
820K to 182K
180K to 680K
20D series
820K to 182K
200A (8/20μsec.)
150A (8/20μsec.)
100A (8/20μsec.)
100A (8/20μsec.)
75A (8/20μsec.)
180K to 680K
50A (8/20μsec.)
50A (8/20μsec.)
20A (8/20μsec.)
25A (8/20μsec.)
Vb
Vb
_
<+10%
10A (8/20μsec.)
Circuit Protection
System
Specifications are subject to change without notice.
Please refer to
http://www.ruilon.com
for current information.
Page:3
Metal Oxide Varistors - 14D Series
Current Energy and Power Dissipation Ratings
Should transients occur in rapid succession, the average power dissipation is the energy (watt-seconds) per pulse times
the number of pulses per second. The power so developed must be within the specifications shown on the Device Ratings
and Specifications Table for the specific device. The operating values of a MOV need to be derated at high temperatures as
shown above. Because varistors only dissipate a relatively small amount of average power they are not suitable for repetitive
applications that involve substantial amounts of average power dissipation.
Figure 1A - Power Derating for Epoxy Coated
Figure 1B - Power Derating for Pholenic Coated
100
100
PERCENT OF RATED VALUE
80
70
60
50
40
30
20
10
0
-55
50
60
70
80
90 100 110 120
AMBIENT TEMPERATURE (
o
C)
130
140 150
PERCENT OF RATED VALUE
90
90
80
70
60
50
40
30
20
10
0
-55
50
60
70
80
90 100 110 120
AMBIENT TEMPERATURE (
o
C)
130
140 150
Peak Pulse Current Test Waveform
PERCENT OF PEAK VALUE
100
90
0
1
T
1
T
2
Example
8µ
20µ
T
T
1
T
2
TIME
50
µs Current Waveform:
1
2
10
O
1
Figure 2
Packaging
Part Number
14D
Component
Package
140
Quantity
500
Packaging
Option
BOX
Packaging Specification
1000
Circuit Protection
System
Specifications are subject to change without notice.
Please refer to
http://www.ruilon.com
for current information.
Page:4
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