20D SERIES
PART NUMBER CODE
20
D
220
K
① ② ③ ④
①Element dia.20: φ20.0mm;
②Disc type;
③Varistor voltage,examples:220——22×100=22V,221——22×101=220V;
④ Tolerance,K=±10%,or customer special requirement;
DIMENSIONS
(unit:mm)
D
D(max)
23mm
25mm
F
7.5±0.8/10±1.0mm
L
30mm
H(max)
26.5mm
L
25-30mm
d(±0.02)
0.8/1.0mm
T
H
d
F
T Thickness (max)
(unit:mm)
Part Code
20D
Part Code
20D
20D180L
4.8
20D331K
6.0
20D220K
4.9
20D361K
6.2
20D270K
5.0
20D391K
6.4
20D330K
5.2
20D431K
6.7
20D390K
5.5
20D471K
6.9
20D470K
5.6
20D511K
7.0
20D560K
5.7
20D561K
7.2
20D680K
5.8
20D621K
7.5
20D820K
4.9
20D681K
7.8
20D101K
5.1
20D751K
8.2
20D121K
5.3
20D781K
8.3
20D151K
5.6
20D821K
8.5
20D181K
5.0
20D911K
9.0
20D201K
5.2
20D102K
9.5
20D221K
5.3
20D112K
10.1
20D241K
5.4
20D122K
10.6
20D271K
5.5
20D182K
13.2
20D301K
5.7
PACKAGING
Model
Component Package
Quantity
20D□□□K
20.0mm
200
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20D SERIES
ELECTRICAL CHARACTERISTIC
Part Number
Standard
Maximum peak
Maximum peak
voltage
current
current
(Max.)
(8/20μs)
(8/20μs)
Varistor
allowable voltage
voltage
AC.rms
DC
V1.0mA
VC
IP
(V)
(V)
(V)
(V)
(A)
Φ20.0mm
High
Clamping
Maximum
surge
Rated
power
Standar
High
Standa
High
d
surge
rd
surge
(A)
(A)
(J)
(J)
(W)
Typical
capacitance
(Reference)
@1KHz(pf)
20D180L
J
10
14
18(15-21)
36
11
13
28500
20D220K
J
14
18
22(20-24)
43
14
16
18500
20D270K
J
17
22
27(24-30)
53
16
19
13000
20D330K
J
20
26
33(30-36)
65
23
24
11500
26
28
20
2000
3000
20D390K
J
25
31
39(35-43)
77
20D470K
J
30
38
47(42-52)
93
30
34
7400
20D560K
J
35
45
56(50-62)
110
41
41
6500
20D680K
J
40
56
68(61-75)
135
46
49
5800
20D820K
J
50
65
85(74-90)
135
38
56
4900
20D101K
J
60
85
100(90-110)
165
45
70
4000
20D121K
J
75
100
120(108-132)
200
55
85
3300
20D151K
J
95
125
150(135-165)
250
70
106
2700
20D181K
J
115
150
180(162-198)
300
85
130
2200
20D201K
J
130
170
200(185-225)
340
95
140
2000
20D221K
J
140
180
220(198-242)
360
100
155
1800
20D241K
J
150
200
240(216-264)
395
108
168
1650
20D271K
J
175
225
270(243-297)
455
127
190
1500
20D301K
J
190
250
300(270-330)
500
136
210
1300
20D331K
J
210
275
330(297-363)
550
150
228
1200
20D361K
J
230
300
360(324-396)
595
163
255
1100
180
275
100
6500
10000
0.20
8500
20D391K
J
250
320
390(351-429)
650
20D431K
J
275
350
430(387-473)
710
190
305
930
20D471K
J
300
385
470(426-517)
775
220
350
850
20D511K
J
320
415
510(459-561)
845
220
360
780
20D561K
J
350
460
560(504-616)
925
220
380
710
20D621K
J
385
505
620(558-682)
1025
220
390
650
20D681K
J
420
560
680(612-748)
1120
230
400
600
20D751K
J
460
615
750(675-825)
1240
255
420
530
20D781K
J
485
640
780(702-858)
1290
265
440
510
20D821K
J
510
670
820(738-902)
1355
282
460
500
20D911K
J
550
745
910(819-1001)
1500
310
510
440
20D102K
J
625
825
1000(900-1100)
1650
342
565
400
1.00
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1000
20D SERIES
Part NumberΦ
20.0mm
Standard
Maximum
Varistor
Clamping
Maximum peak
Maximum peak
Rated
Typical
allowable
voltage
voltage
current
current
power
capacitance
(Max.)
(8/20μs)
8/20μs)
voltage
High
AC.rms
DC
V1.0mA
VC
IP
Standar
High
Standar
High surge
surge
(V)
(V)
(V)
(V)
(A)
d
surge
d(J)
(J)
(A)
(A)
383
620
408
660
625
660
20D112K
J
680
895
1100(990-1210)
1815
20D122K
J
700
990
1200(1080-1320)
1880
20D182K
J
1100
1465
1800(1620-1980)
2970
100
6500
10000
(Reference)
(W)
@1KHz(pf)
360
1.00
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320
320
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