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 follow-on current
Meets MSL level1, per J-STD-020
Operating temperature: -40℃ ~ +85℃
Storage Temperature:-40℃ ~ +125℃
Applications
Transistor, diode, IC, SCR or SCR 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
Part Number Code and Marking Code
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掌握芯技术Core Technology
(V2)
Metal Oxide Varistors
14D Series
Dimensions
Item
D
H
H1
L
L1
d
P
T
Dimension
(mm)
14.0~16.5
14.5~20.0
17.0~21.0
≥20.0
≥15.0
0.8±0.05
7.5±0.8
W
Refer to the
following table
Model
T
W
Model
T
W
Model
T
W
180K
2.0~3.9
1.5±0.8
201K
2.4~4.3
2.0±0.8
681K
4.0~7.1
4.2±0.8
220K
2.1~4.0
1.6±0.8
221K
2.5~4.4
2.1±0.8
751K
4.3~7.2
4.3±0.8
270K
2.1~4.1
1.8±0.8
241K
2.6~4.5
2.2±0.8
781K
4.4~7.3
4.4±0.8
330K
2.2~4.3
1.7±0.8
271K
2.6~4.6
2.4±0.8
821K
4.6~7.5
4.6±0.8
390K
2.1~4.1
1.8±0.8
301K
2.7~4.6
2.5±0.8
911K
4.8~7.5
5.0±0.8
470K
2.2~4.3
1.9±0.8
331K
2.7~5.0
2.5±0.8
102K
5.4~8.0
5.0±0.8
560K
2.3~4.6
2.1±0.8
361K
2.9~5.2
2.7±0.8
112K
5.8~8.5
5.4±0.8
680K
2.4~4.8
2.4±0.8
391K
3.0~5.4
2.8±0.8
122K
5.9~9.0
5.8±0.8
820K
2.1~4.1
1.8±0.8
431K
3.2~5.6
3.0±0.8
142K
6.9~10.5
6.6±0.8
101K
2.4~4.2
2.0±0.8
471K
3.3~5.8
3.2±0.8
162K
7.4~11.0
7.4±0.8
121K
2.4~4.4
2.2±0.8
511K
3.4~6.1
3.4±0.8
182K
7.6~12.0
8.2±0.8
151K
2.2~4.1
1.8±0.8
561K
3.6~6.4
3.6±0.8
181K
2.3~4.2
1.9±0.8
621K
3.8~6.8
3.9±0.8
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掌握芯技术Core Technology
(V2)
Metal Oxide Varistors
14D Series
Electrical Characteristics
Model
Varistor
Voltage
Maximum
Allowable
Voltage
Maximum
Clamping
Voltage
Surge
Current
Maximum
Energy
(10/1000μs)
Maximum
Leakage
Current
@83% of V1mA
Rated
Power
Typical
Capacitance
(Reference)
V1mA (V)
VAC (V)
VDC (V)
IP (A)
VC (V)
I (A)
E (J)
IR (μA)
P (W)
@1KHz (pF)
180KD14
18(15~21.6)
11
14
10
36
1000
4
50
0.1
11100
180KD14J
18(15~21.6)
11
14
10
36
2000
7
50
0.1
11100
220KD14
22(19.5~26)
14
18
10
43
1000
5
50
0.1
9100
220KD14J
22(19.5~26)
14
18
10
43
2000
8
50
0.1
9100
270KD14
27(24~31)
17
22
10
53
1000
6
50
0.1
7400
270KD14J
27(24~31)
17
22
10
53
2000
10
50
0.1
7400
330KD14
33(29.5~36.5)
20
26
10
65
1000
7.5
50
0.1
6100
330KD14J
33(29.5~36.5)
20
26
10
65
2000
12
50
0.1
6100
390KD14
39(35~43)
25
31
10
77
1000
8.6
50
0.1
5100
390KD14J
39(35~43)
25
31
10
77
2000
13
50
0.1
510
470KD14
47(42~52)
30
38
10
93
1000
10
50
0.1
4300
470KD14J
47(42~52)
30
38
10
93
2000
17
50
0.1
4300
560KD14
56(50~62)
35
45
10
110
1000
11
50
0.1
3600
560KD14J
56(50~62)
35
45
10
110
2000
20
50
0.1
3600
680KD14
68(61~75)
40
56
10
135
1000
14
50
0.1
2900
680KD14J
68(61~75)
40
56
10
135
2000
24
50
0.1
2900
820KD14
82(74~90)
50
65
50
135
4500
22
25
0.6
2400
820KD14J
82(74~90)
50
65
50
135
6000
27
25
0.6
2400
101KD14
100(90~110)
60
85
50
165
4500
28
25
0.6
2000
101KD14J
100(90~110)
60
85
50
165
6000
33
25
0.6
2000
121KD14
120(108~132)
75
100
50
200
4500
32
25
0.6
1700
121KD14J
120(108~132)
75
100
50
200
6000
40
25
0.6
1700
151KD14
150(135~165)
95
125
50
250
4500
40
25
0.6
1300
151KD14J
150(135~165)
95
125
50
250
6000
53
25
0.6
1300
181KD14
180(162~198)
115
150
50
300
4500
50
25
0.6
1100
181KD14J
180(162~198)
115
150
50
300
6000
60
25
0.6
1100
201KD14
200(180~220)
130
170
50
340
4500
57
25
0.6
1000
201KD14J
200(180~220)
130
170
50
340
6000
70
25
0.6
1000
221KD14
220(198~242)
140
180
50
360
4500
60
25
0.6
900
221KD14J
220(198~242)
140
180
50
360
6000
78
25
0.6
900
241KD14
240(216~264)
150
200
50
395
4500
63
25
0.6
830
241KD14J
240(216~264)
150
200
50
395
6000
84
25
0.6
830
271KD14
270(243~297)
175
225
50
455
4500
70
25
0.6
740
271KD14J
270(243~297)
175
225
50
455
6000
90
25
0.6
740
301KD14
300(270~330)
190
250
50
500
4500
77
25
0.6
670
301KD14J
300(270~330)
190
250
50
500
6000
108
25
0.6
670
331KD14
330(297~363)
210
275
50
550
4500
85
25
0.6
610
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掌握芯技术Core Technology
(V2)
Metal Oxide Varistors
14D Series
Electrical Characteristics
Model
Varistor
Voltage
Maximum
Allowable
Voltage
Maximum
Clamping
Voltage
Surge
Current
Maximum
Energy
(10/1000μs)
Maximum
Leakage
Current
@83% of V1mA
Rated
Power
Typical
Capacitance
(Reference)
V1mA (V)
VAC (V)
VDC (V)
IP (A)
VC (V)
I (A)
E (J)
IR (μA)
P (W)
@1KHz (pF)
331KD14J
330(297~363)
210
275
50
550
6000
115
25
0.6
610
361KD14
360(324~396)
230
300
50
595
4500
93
25
0.6
560
361KD14J
360(324~396)
230
300
50
595
6000
130
25
0.6
560
391KD14
390(351~429)
250
320
50
650
4500
100
25
0.6
510
391KD14J
390(351~429)
250
320
50
650
6000
140
25
0.6
510
431KD14
430(387~473)
275
350
50
710
4500
115
25
0.6
460
431KD14J
430(387~473)
275
350
50
710
6000
155
25
0.6
460
471KD14
470(423~517)
300
385
50
775
4500
118
25
0.6
430
471KD14J
470(423~517)
300
385
50
775
6000
175
25
0.6
430
511KD14
510(459~561)
320
415
50
845
4500
121
25
0.6
390
511KD14J
510(459~561)
320
415
50
845
6000
180
25
0.6
390
561KD14
560(504~616)
350
460
50
925
4500
125
25
0.6
360
561KD14J
560(504~616)
350
460
50
925
6000
185
25
0.6
360
621KD14
620(558~682)
385
505
50
1025
4500
128
25
0.6
320
621KD14J
620(558~682)
385
505
50
1025
6000
190
25
0.6
320
681KD14
680(612~748)
420
560
50
1120
4500
130
25
0.6
290
681KD14J
680(612~748)
420
560
50
1120
6000
200
25
0.6
290
751KD14
750(675~825)
460
615
50
1240
4500
143
25
0.6
270
751KD14J
750(675~825)
460
615
50
1240
6000
210
25
0.6
270
781KD14
780(702~858)
485
640
50
1290
4500
148
25
0.6
260
781KD14J
780(702~858)
485
640
50
1290
6000
220
25
0.6
260
821KD14
820(738~902)
510
670
50
1355
4500
157
25
0.6
240
821KD14J
820(738~902)
510
670
50
1355
6000
235
25
0.6
240
911KD14
910(819~1001)
550
745
50
1500
4500
175
25
0.6
220
911KD14J
910(819~1001)
550
745
50
1500
6000
255
25
0.6
220
102KD14
1000(900~1100)
625
825
50
1650
4500
190
25
0.6
200
102KD14J
1000(900~1100)
625
825
50
1650
6000
280
25
0.6
200
112KD14
1100(990~1210)
680
895
50
1815
4500
213
25
0.6
180
112KD14J
1100(990~1210)
680
895
50
1815
6000
310
25
0.6
180
122KD14
1200(1080~1320)
750
990
50
1980
4500
232
25
0.6
160
122KD14J
1200(1080~1320)
750
990
50
1980
6000
324
25
0.6
160
142KD14
1400(1260~1540)
880
1140
50
2310
4500
238
25
0.6
150
142KD14J
1400(1260~1540)
880
1140
50
2310
6000
327
25
0.6
150
162KD14
1600(1440~1760)
1000
1280
50
2640
4500
243
25
0.6
140
162KD14J
1600(1440~1760)
1000
1280
50
2640
6000
331
25
0.6
140
182KD14
1800(1620~1980)
1100
1465
50
2970
4500
250
25
0.6
130
182KD14J
1800(1620~1980)
1100
1465
50
2970
6000
335
25
0.6
130
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掌握芯技术Core Technology
(V2)
Metal Oxide Varistors
14D Series
Electrical Ratings
Items
Varistor Voltage
Test Condition/Description
Requirement
The voltage between two terminals with the specified measuring
current 1mA.DC applied is called Vb.
Maximum
Allowable Voltage
The recommended maximum sine wave voltage (RMS) or the
Maximum DC voltage can be applied continuously.
Maximum
Clamping Voltage
The maximum voltage between two terminals with the specification
standard impulse current.
Applied waveform: 8/20μs
Surge Current
The maximum current within the varistor voltage change of ±10% with
the standard impulse current (8/20μs) applied one time.
Energy
The maximum energy within the varistor voltage change of ±10%
when one impulse of 10/1000μs is applied.
Leakage
Current
The current through the varistor when 0.83V1mA is applied to both end.
Rated
Power
The maximum average power that can be applied within the specified
ambient temperature.
Varistor Voltage
Temp. Coefficient
Surge Life
≤0.05%/℃
The change of V1mA shall be measured after the impulse listed below
which is applied 10,000 times continuously with the interval of ten
seconds at room temperature.
14D series
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To meet the
Specified value
180K to 680K
75A (8/20μs)
820K to 182K
150A (8/20μs)
掌握芯技术Core Technology
|ΔV1mA/V1mA |≤10%
(V2)
Metal Oxide Varistors
14D Series
Mechanical Characteristics and Reliability
Items
Test conditions / Methods
Specifications
Gradually applying the force specified and keeping the unit
fixed for 10±1 sec.
Tensile Strength
of Terminals
Terminal diameter (mm)
Force (kg)
0.5
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