20Φ SERIES
Metal Oxide Varistor (MOV) Data Sheet
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 level 1, per J-STD-020
Operating Temperature:-40℃ ~ +85℃
Storage Temperature:-40℃ ~ +125℃
Safety certification: UL: E327997
CSA: 246579
VDE: 40027827
Applications
■
■
■
■
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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:13-Apr.-18
1 / 12
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20Φ SERIES
Dimensions
Table 1
Table 2
Unit: mm
Unit: mm
Symbol
Dimension
Model
T
e
Model
T
e
H
21.0~26.0
180K
2.1~4.3
1.7
361K
3.0~5.4
2.9
H1
24.0~28.0
220K
2.2~4.4
1.8
391K
3.1~5.5
3.0
L(min.)
20.0
270K
2.2~4.6
2.0
431K
3.3~5.7
3.2
L1(min.)
15.0
330K
2.3~4.8
1.9
471K
3.4~6.0
3.4
D
20.0~23.0
390K
2.2~4.5
2.0
511K
3.5~6.2
3.6
F
7.5±0.8/10.0±1.0
470K
2.3~4.7
2.1
561K
3.7~6.5
3.8
T
Table 2
560K
2.4~5.0
2.3
621K
3.9~6.8
4.1
e(±0.8)
Table 2
680K
2.5~5.3
2.6
681K
4.1~7.1
4.4
d(±0.05)
0.8/1.0
820K
2.2~4.5
2.0
751K
4.4~7.5
4.5
d1(±0.4)
1.4/1.6
101K
2.5~4.6
2.2
781K
4.5~7.7
4.6
121K
2.5~4.8
2.4
821K
4.7~7.9
4.8
151K
2.3~4.5
2.0
911K
4.9~8.1
5.2
181K
2.4~4.6
2.1
102K
5.5~8.6
5.2
201K
2.5~4.7
2.2
112K
5.9~9.1
5.6
221K
2.6~4.8
2.3
122K
6.0~9.7
6.0
241K
2.7~4.9
2.4
142K
7.0~11.2
6.8
271K
2.7~5.0
2.6
162K
7.5~11.8
7.6
301K
2.8~5.0
2.7
182K
7.7~12.8
8.4
331K
2.8~5.2
2.7
Revision:13-Apr.-18
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20Φ SERIES
Electrical Characteristics
Maximum
Part
Number
Standard
High
Surge
Allowable
Voltage
VAC(V)
VDC(V)
Varistor
Voltage
V1mA(V)
Maximum
Withstanding
Maximum
Clamping
Surge
Energy
Voltage
Current
(10/1000μs)
IP(A)
VC(V)
I (A)
Standard
I (A)
High
Surge
(J)
Standard
Rated
Power
Typical
Capacitance
(Reference)
(J)
High
(W)
@1KHz (pf)
Surge
180KD20
180KD20J
11
14
18(15~21.6)
20
36
2000
3000
11
13
0.2
28500
220KD20
220KD20J
14
18
22(19.5~26)
20
43
2000
3000
14
16
0.2
18500
270KD20
270KD20J
17
22
27(24~31)
20
53
2000
3000
16
19
0.2
13000
330KD20
330KD20J
20
26
33(29.5~36.5)
20
65
2000
3000
23
24
0.2
11500
390KD20
390KD20J
25
31
39(35~43)
20
77
2000
3000
26
28
0.2
8500
470KD20
470KD20J
30
38
47(42~52)
20
93
2000
3000
30
34
0.2
7400
560KD20
560KD20J
35
45
56(50~62)
20
110
2000
3000
38
44
0.2
6500
680KD20
680KD20J
40
56
68(61~75)
20
135
2000
3000
41
49
0.2
5800
820KD20
820KD20J
50
65
82(74~90)
100
135
6500
10000
45
56
1.0
4900
101KD20
101KD20J
60
85
100(90~110)
100
165
6500
10000
50
70
1.0
4000
121KD20
121KD20J
75
100
120(108~132)
100
200
6500
10000
55
85
1.0
3300
151KD20
151KD20J
95
125
150(135~165)
100
250
6500
10000
70
106
1.0
2700
181KD20
181KD20J
115
150
180(162~198)
100
300
6500
10000
85
130
1.0
2200
201KD20
201KD20J
130
170
200(180~220)
100
340
6500
10000
95
140
1.0
2000
221KD20
221KD20J
140
180
220(198~242)
100
360
6500
10000
100
155
1.0
1800
241KD20
241KD20J
150
200
240(216~264)
100
395
6500
10000
108
168
1.0
1650
271KD20
271KD20J
175
225
270(243~297)
100
455
6500
10000
127
190
1.0
1500
301KD20
301KD20J
190
250
300(270~330)
100
500
6500
10000
136
210
1.0
1300
331KD20
331KD20J
210
275
330(297~363)
100
550
6500
10000
150
228
1.0
1200
361KD20
361KD20J
230
300
360(324~396)
100
595
6500
10000
163
255
1.0
1100
391KD20
391KD20J
250
320
390(351~429)
100
650
6500
10000
180
275
1.0
1000
431KD20
431KD20J
275
350
430(387~473)
100
710
6500
10000
190
305
1.0
930
471KD20
471KD20J
300
385
470(423~517)
100
775
6500
10000
204
350
1.0
850
511KD20
511KD20J
320
415
510(459~561)
100
845
6500
10000
210
360
1.0
780
561KD20
561KD20J
350
460
560(504~616)
100
925
6500
10000
215
380
1.0
710
621KD20
621KD20J
385
505
620(558~682)
100
1025
6500
10000
224
390
1.0
650
681KD20
681KD20J
420
560
680(612~748)
100
1120
6500
10000
230
400
1.0
600
751KD20
751KD20J
460
615
750(675~825)
100
1240
6500
10000
255
420
1.0
530
781KD20
781KD20J
485
640
780(702~858)
100
1290
6500
10000
265
440
1.0
510
821KD20
821KD20J
510
670
820(738~902)
100
1355
6500
10000
282
460
1.0
500
911KD20
911KD20J
550
745
910(819~1001)
100
1500
6500
10000
310
510
1.0
440
102KD20
102KD20J
625
825
1000(900~1100)
100
1650
6500
10000
342
565
1.0
400
112KD20
112KD20J
680
895
1100(990~1210)
100
1815
6500
10000
383
620
1.0
360
122KD20
122KD20J
750
990
1200(1080~1320)
100
1980
6500
10000
408
660
1.0
350
142KD20
142KD20J
880
1140
1400(1260~1540)
100
2310
6500
10000
532
784
1.0
340
162KD20
162KD20J
1000
1280
1600(1440~1760)
100
2640
6500
10000
606
896
1.0
330
182KD20
182KD20J
1100
1465
1800(1620~1980)
100
2970
6500
10000
625
990
1.0
320
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 V1mA):IR≤50μA (180K~680K) ; IR≤25μA (820K~182K)
Revision:13-Apr.-18
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20Φ SERIES
Electrical Ratings
Items
Varistor Voltage
Maximum Allowable
Voltage
Test Condition/Description
Requirement
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
Maximum Clamping
Voltage
To meet the
Specified value
Rated Wattage
The maximum average power that can be applied within the
specified ambient temperature.
Energy
The maximum energy within the varistor voltage change of ±10%
when one impulse of 10/1000μs or 2ms is applied.
Withstanding Surge
Current
The maximum current within the varistor voltage change of ±10%
with the standard impulse current (8/20μs) applied one time.
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
Revision:13-Apr.-18
180K to 680K
100A (8/20μs)
820K to 182K
200A (8/20μs)
4 / 12
ΔVb
Vb
10%
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20Φ SERIES
Soldering Recommendation
Wave Lead Free Soldering Recommendation
300
Maximum Wave 265℃
Preheating
Soldering
Cooling
250
200
150
100
50
0
0
0.5
1
1.5
2
2.5
3
3.5
4
Time (minutes)
Item
Conditions
Peak Temperature
265℃
Dipping Time
10 seconds (max.)
Soldering
1 time
Recommendation Reworking Conditions with Soldering Iron
Revision:13-Apr.-18
Item
Conditions
Temperature of Soldering Iron-tip
360℃ (max.)
Soldering Time
3 seconds (max.)
Distance from Varistor
2mm (min.)
5 / 12
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20Φ SERIES
Mechanical Characteristics
Items
Test conditions / Methods
Specifications
Gradually applying the force specified and keeping the unit
fixed for 10±1 sec.
Tensile Strength
of Terminals
Bending Strength
of Terminals
Vibration
No visible damage
|ΔV1mA/V1mA |≤5%
Hold specimen and apply the force specified below to each
lead. Bend the specimen to 90°, then return to the original
position. Repeat the procedure in the opposite direction.
Frequency range: 10~55 Hz
Amplitude: 0.75mm or 98m/s2
Direction: 3 mutually perpendicular directions, 2hrs each.
No visible damage
|ΔV1mA/V1mA |≤5%
No visible damage
|ΔV1mA/V1mA |≤5%
Solder ability
Solder Temp: 245±5℃
Dipping Time: 2±0.5 sec
At least 95% of terminal
electrode is covered by
new solder
Resistance to
Soldering Heat
Solder Temp: 260±5℃
Dipping Time: 10±1 sec
No visible damage
|ΔV1mA/V1mA |≤10%
Reliability
Items
Test conditions / Methods
Specifications
High Temperature
Storage
Ambient Temp: 125±2℃
Duration: 1000hrs
|ΔV1mA/V1mA |≤5%
Low Temperature
Storage
Ambient Temp: -40±2℃
Duration: 1000hrs
|ΔV1mA/V1mA |≤5%
Ambient Temp: 40±2℃, 90~95% R.H.
Duration: 1000hrs
|ΔV1mA/V1mA |≤5%
Humidity
The conditions shown below shall be repeated 5 cycles
Temperature Cycle
Step
Temperature (℃)
Period (minutes)
1
-40±3
30±3
2
Room temperature
15±3
3
125±3
30±3
4
Room temperature
15±3
No visible damage
|ΔV1mA/V1mA |≤5%
High Temperature
Load
Ambient Temp: 105±2℃
Duration: 1000hrs
Load: Max. Allowable Voltage In AC eara.
|ΔV1mA/V1mA|≤10%
Damp Heat Load
Ambient Temp: 40±2℃, 90~95% R.H.
Duration: 1000hrs
Load: Max. Allowable Voltage
No visible damage
|ΔV1mA/V1mA |≤10%
Metal balls method, 2500Vac 1 min.
No visible damage
Voltage Proof
Revision:13-Apr.-18
6 / 12
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20Φ SERIES
Maximum Surge Current Derating Curve
Revision:13-Apr.-18
7 / 12
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20Φ SERIES
Maximum Leakage Current and Maximum Clamping Voltage Curve
Revision:13-Apr.-18
8 / 12
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20Φ SERIES
Maximum Leakage Current and Maximum Clamping Voltage Curve
Revision:13-Apr.-18
9 / 12
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20Φ SERIES
Maximum Leakage Current and Maximum Clamping Voltage Curve
Revision:13-Apr.-18
10 / 12
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20Φ SERIES
Marking Code
VDE
W0
W
Taping Dimensions
Revision:13-Apr.-18
11 / 12
Symbol
Dimensions (mm)
P
25.4±1.0
P0
12.7±1.0
P1
8.95/7.7±0.7
P2
12.7±1.3
F
7.5±0.8/10.0±1.0
h
0±4
W
18.0±1.0
W0
12.0±1.0
W1
9.0±0.5
W2
3.0max
H
20.0±2.0
I
1.0max
D0
4.0±0.2
t
0.6±0.3
B
45max
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20Φ SERIES
Quantity
Packaging Dimensions (Unit: mm)
Quantity
Exposure in bulk
250pcs/bag
4bags/box
(180K~301K)
200pcs/bag
4bags/box
(331K~561K)
150pcs/bag
4bags/box
(621K~112K)
100pcs/bag
4bags/box
(122K~182K)
Cut the feet in bulk
250pcs/bag
2bags/box
(180K~301K)
200pcs/bag
2bags/box
(331K~561K)
150pcs/bag
2bags/box
(621K~112K)
100pcs/bag
2bags/box
(122K~182K)
Tape & Box
400pcs/box
(180K~301K)
300pcs/box
(331K~561K)
Tape & Reel
400pcs/box
(180K~301K)
300pcs/box
(331K~561K)
Revision:13-Apr.-18
12 / 12
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