DATA SHEET
METAL OXIDE VARISTORS
POWER SUPPLY
20H series
RoHS compliant & Halogen free
Product specification– February 12, 2019 V.0
Circuit Protection
Product Specification
2
13
METAL OXIDE VARISTORS
20H
Metal Oxide Varistor (MOV) Data Sheet
Features
■
■
■
■
■
■
■
■
Wide operating voltage (V
1mA
) 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 level 1, per J-STD-020
Operating Temperature：-40℃ ~ +125℃
Storage Temperature：-40℃ ~ +125℃
Safety certification: UL: E327997
TUV:B170296048003
CQC:17001172545
Applications
■
■
■
■
■
Transistor, diode, IC, thyristor or triac 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
Packaging
No suffix: Bulk
TB: Tape & Box
TR: Tape & Reel
Lead Distance
No suffix: 10mm
P7.5: 7.5mm
Tolerance
K: ±10%
Varistor Voltage
180: 18V
101: 100V
102: 1000V
Element Diameter
20=20mm
Lead Shape
No suffix: Straight leads
O: Outside crimped leads
F: Y kink leads
Surge Series
No suffix: Standard type
J: High Surge type
Type
H: High temperture
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Feb. 12, 2019 V.0
Circuit Protection
Product Specification
3
13
METAL OXIDE VARISTORS
Dimensions
20H
D
D
T
D
T
H
H1
K≤3.0
K≤3.0
L1
d
F
O Type
F Type
Table 1
Unit: mm
Symbol
H
H1
L(min.)
L1(min.)
D
F
T
e(±0.8)
d(±0.05)
d1(±0.4)
Dimension
19.5~26.5
24.0~30.0
20.0
15.0
19.0~23.5
7.5±0.8/10.0±1.0
Table 2
Table 2
0.8/1.0
1.4/1.6
Model
180K
220K
270K
330K
390K
470K
560K
680K
820K
101K
121K
151K
181K
201K
221K
241K
271K
301K
331K
T
2.66~5.73
2.76~5.87
2.87~6.09
2.99~6.28
2.94~6.04
3.06~6.27
3.21~6.52
3.41~6.82
2.74~5.72
2.84~5.89
2.94~6.09
2.79~5.90
2.89~6.10
2.97~6.26
3.02~6.11
3.09~6.22
3.18~6.39
3.25~6.55
3.35~6.72
e
Table 2
Unit: mm
Model
361K
391K
431K
471K
511K
561K
621K
681K
751K
781K
821K
911K
102K
112K
122K
142K
162K
182K
T
3.45~6.88
3.55~7.05
3.69~7.27
3.85~7.49
3.99~7.71
4.15~7.98
4.35~8.31
4.55~8.64
4.75~9.03
4.85~9.19
4.98~9.41
5.28~9.67
5.57~10.14
5.91~10.66
6.15~11.19
6.90~12.23
7.58~13.38
8.25~14.33
e
2.9
3.0
3.2
3.4
3.6
3.8
4.1
4.4
4.5
4.6
4.8
5.0
5.3
5.6
5.9
6.1
6.7
7.1
1.7
1.8
2.0
1.9
2.0
2.1
2.3
2.4
2.0
2.2
2.4
2.0
2.1
2.2
2.3
2.4
2.6
2.7
2.7
L1
d
d1
L
F
e
H1
d
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Feb. 12, 2019 V.0
Circuit Protection
Product Specification
4
13
METAL OXIDE VARISTORS
Electrical Characteristics
Part
Number
Maximum
Allowable
Voltage
V
AC
(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
880
1000
1100
V
DC
(V)
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
1140
1280
1465
Varistor
Voltage
20H
Maximum
Clamping
Voltage
I
P
(A)
20
20
20
20
20
20
20
20
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
V
C
(V)
36
43
53
65
77
93
110
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
2310
2640
2970
Withstanding
Surge
Current
I (A)
Standard
2000
2000
2000
2000
2000
2000
2000
2000
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
I (A)
High
Surge
3000
3000
3000
3000
3000
3000
3000
3000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
10000
Maximum
Energy
(10/1000μs)
(J)
Standard
11
14
16
23
26
30
38
41
45
50
55
70
85
95
100
108
127
136
150
163
180
190
204
210
215
224
230
255
265
282
310
342
383
408
532
606
625
(J)
High
Surge
13
16
19
24
28
34
44
49
56
70
85
106
130
140
155
168
190
210
228
255
275
305
350
360
380
390
400
420
440
460
510
565
620
660
784
896
990
Rated
Power
Typical
Capacitance
(Reference)
@1KHz (pf)
28500
18500
13000
11500
8500
7400
6500
5800
4900
4000
3300
2700
2200
2000
1800
1650
1500
1300
1200
1100
1000
930
850
780
710
650
600
530
510
500
440
400
360
350
340
330
320
Standard
180KH20
220KH20
270KH20
330KH20
390KH20
470KH20
560KH20
680KH20
820KH20
101KH20
121KH20
151KH20
181KH20
201KH20
221KH20
241KH20
271KH20
301KH20
331KH20
361KH20
391KH20
431KH20
471KH20
511KH20
561KH20
621KH20
681KH20
751KH20
781KH20
821KH20
911KH20
102KH20
112KH20
122KH20
142KH20
162KH20
182KH20
High Surge
180KH20J
220KH20J
270KH20J
330KH20J
390KH20J
470KH20J
560KH20J
680KH20J
820KH20J
101KH20J
121KH20J
151KH20J
181KH20J
201KH20J
221KH20J
241KH20J
271KH20J
301KH20J
331KH20J
361KH20J
391KH20J
431KH20J
471KH20J
511KH20J
561KH20J
621KH20J
681KH20J
751KH20J
781KH20J
821KH20J
911KH20J
102KH20J
112KH20J
122KH20J
142KH20J
162KH20J
182KH20J
V
1mA
(V)
18(15~21.6)
22(19.5~26)
27(24~31)
33(29.5~36.5)
39(35~43)
47(42~52)
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)
1400(1260~1540)
1600(1440~1760)
1800(1620~1980)
(W)
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Notes: 1. The tolerance of varistor voltage between 18V and 27V is more than 10%.
2. Varistor voltage≥1200V, structure diagram is F type.
3. Leakage Current (@83% of V
1mA
)：IR≤40μA (180K~680K) ; IR≤20μA (820K~182K)
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Feb. 12, 2019 V.0
Circuit Protection
Product Specification
5
13
METAL OXIDE VARISTORS
Electrical Ratings
Items
Varistor Voltage
20H
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
Crest value
100
90
Requirement
Maximum Allowable
Voltage
Maximum Clamping
Voltage
Current (%)
50
20µs
10
0
8µs
Time
Impulse Width
To meet the
Specified value
Rated Wattage
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.
V
1mA@125℃
-V
1mA@25℃
V
1mA@25℃
1
× 100%(%/℃)
100
Energy
Withstanding Surge
Current
×
Varistor Voltage
Temp. Coefficient
V
1mA@-40℃
-V
1mA@25℃
V
1mA@25℃
×
1
× 100%(%/℃)
65
≤0.05%/℃
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
20Φ series
180K to 680K
820K to 182K
100A (8/20μs)
200A (8/20μs)
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Feb. 12, 2019 V.0
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