20Φ SERIES
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℃ ~ +85℃
Storage Temperature：-40℃ ~ +125℃
Safety certification: UL: E327997
CSA: 246579
VDE: 40027827
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
Revision：30-Jun-16
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20Φ SERIES
Dimensions
Table 1
Unit: mm
Symbol
H
H1
L(min.)
L1(min.)
D
F
T
e(±0.8)
d(±0.05)
d1(±0.4)
Dimension
21.0~26.0
24.0~28.0
20.0
15.0
20.0~23.0
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
2.1~4.3
2.2~4.4
2.2~4.6
2.3~4.8
2.2~4.5
2.3~4.7
2.4~5.0
2.5~5.3
2.2~4.5
2.5~4.6
2.5~4.8
2.3~4.5
2.4~4.6
2.5~4.7
2.6~4.8
2.7~4.9
2.7~5.0
2.8~5.0
2.8~5.2
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
3.0~5.4
3.1~5.5
3.3~5.7
3.4~6.0
3.5~6.2
3.7~6.5
3.9~6.8
4.1~7.1
4.4~7.5
4.5~7.7
4.7~7.9
4.9~8.1
5.5~8.6
5.9~9.1
6.0~9.7
7.0~11.2
7.5~11.8
7.7~12.8
e
2.9
3.0
3.2
3.4
3.6
3.8
4.1
4.4
4.5
4.6
4.8
5.2
5.2
5.6
6.0
6.8
7.6
8.4
1.7
1.8
2.0
1.9
2.0
2.1
2.3
2.6
2.0
2.2
2.4
2.0
2.1
2.2
2.3
2.4
2.6
2.7
2.7
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20Φ SERIES
Electrical Characteristics
Part
Number
Maximum
Allowable
Voltage
Varistor
Voltage
Maximum
Clamping
Voltage
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
41
46
38
45
55
70
85
95
100
108
127
136
150
163
180
190
220
220
220
220
230
255
265
282
310
342
383
408
532
606
625
(J)
High
Surge
13
16
19
24
28
34
41
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
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
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
(W)
@1KHz (pf)
Rated
Power
Typical
Capacitance
(Reference)
Standard
180KD20
220KD20
270KD20
330KD20
390KD20
470KD20
560KD20
680KD20
820KD20
101KD20
121KD20
151KD20
181KD20
201KD20
221KD20
241KD20
271KD20
301KD20
331KD20
361KD20
391KD20
431KD20
471KD20
511KD20
561KD20
621KD20
681KD20
751KD20
781KD20
821KD20
911KD20
102KD20
112KD20
122KD20
142KD20
162KD20
182KD20
High
Surge
180KD20J
220KD20J
270KD20J
330KD20J
390KD20J
470KD20J
560KD20J
680KD20J
820KD20J
101KD20J
121KD20J
151KD20J
181KD20J
201KD20J
221KD20J
241KD20J
271KD20J
301KD20J
331KD20J
361KD20J
391KD20J
431KD20J
471KD20J
511KD20J
561KD20J
621KD20J
681KD20J
751KD20J
781KD20J
821KD20J
911KD20J
102KD20J
112KD20J
122KD20J
142KD20J
162KD20J
182KD20J
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
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)
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
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≤50μA (180K~680K) ; IR≤25μA (820K~182K)
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20Φ SERIES
Electrical Ratings
Items
Varistor 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
Requirement
Maximum Allowable
Voltage
Maximum Clamping
Voltage
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.
Energy
Withstanding Surge
Current
Varistor Voltage
Temp. Coefficient
≤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)
∆Vb
≤ ±10%
Vb
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20Φ SERIES
Soldering Recommendation
Wave Lead Free Soldering Recommendation
300
Preheating
Maximum Wave 265℃
Soldering
Cooling
250
200
150
100
50
0
0
0.5
1
1.5
2
2.5
3
3.5
4
Time (minutes)
Item
Peak Temperature
Dipping Time
Soldering
Conditions
265℃
10 seconds (max.)
1 time
Recommendation Reworking Conditions with Soldering Iron
Item
Temperature of Soldering Iron-tip
Soldering Time
Distance from Varistor
Conditions
360℃ (max.)
3 seconds (max.)
2mm (min.)
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