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Metal Oxide Varistors (MOV) Data Sheet
Features
Wide operating voltage (V1mA) range from 18V to 820V
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
7Φ SERIES
Revision:13-Apr.-18
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Dimensions
7Φ SERIES
Table 1
Unit: mm
Symbol
Dimension
H 7.5~12.0
H1 9.0~13.5
L(min.)
20.0
L1(min.)
15.0
D 7.0~9.0
F(±0.8)
5.0
T Table 2
e(±0.8)
Table 2
d(±0.05)
0.6
d1(±0.4)
1.2
Model
180K
220K
270K
330K
390K
470K
560K
680K
820K
101K
121K
151K
181K
201K
221K
T
1.5~4.5
1.6~4.6
1.6~4.7
1.7~4.9
1.6~4.8
1.7~4.9
1.8~5.0
1.9~5.2
1.6~4.1
1.9~4.3
1.9~4.5
1.7~4.8
1.8~4.3
1.9~4.4
2.0~4.5
Table 2
e Model
1.3 241K
1.4 271K
1.6 301K
1.5 331K
1.6 361K
1.7 391K
1.9 431K
2.2 471K
1.6 511K
1.8 561K
2.0 621K
1.6 681K
1.7 751K
1.8 781K
1.9 821K
Unit: mm
Te
2.1~4.6
2.0
2.1~4.9
2.2
2.2~5.0
2.3
2.2~5.1
2.3
2.4~5.2
2.5
2.5~5.4
2.6
2.7~5.7
2.8
2.8~6.0
3.0
2.9~6.2
3.2
3.1~6.5
3.4
3.3~7.1
3.7
3.5~7.3
4.0
3.8~7.0
4.1
3.9~7.2
4.2
4.1~7.5
4.4
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7Φ SERIES
Electrical Characteristics
Part
Number
Maximum
Allowable
Voltage
Varistor
Voltage
Maximum
Clamping
Voltage
Withstanding
Surge
Current
Maximum
Energy
(10/1000μs)
Rated
Power
Typical
Capacitance
(Reference)
Standard
High
Surge
VAC(V) VDC(V)
V1mA(V)
IP(A)
VC(V)
I (A)
Standard
I (A)
High
Surge
(J)
Standard
(J)
High
Surge
(W)
@1KHz (pf)
180KD07 180KD07J 11 14 18(15~21.6) 2.5 36 250 500 0.9 2.0 0.02
2800
220KD07 220KD07J 14
18 22(19.5~26) 2.5 43
250 500
1.1
2.4 0.02
2300
270KD07 270KD07J 17 22 27(24~31) 2.5 53 250 500 1.4 3.0 0.02
1800
330KD07 330KD07J 20
26 33(29.5~36.5) 2.5 65
250 500
1.7
3.5 0.02
1500
390KD07 390KD07J 25 31 39(35~43) 2.5 77 250 500 2.1 4.0 0.02
1300
470KD07 470KD07J 30
38 47(42~52) 2.5 93
250 500
2.5
5.0 0.02
1100
560KD07 560KD07J 35
45
56(50~62)
2.5 110
250
500
3.1
6.0 0.02
890
680KD07 680KD07J 40
56
68(61~75)
2.5 135
250
500
3.6
7.0 0.02
740
820KD07 820KD07J 50
65
82(74~90)
10 135
1200
1750
5
10.0 0.25
600
101KD07 101KD07J 60
85 100(90~110) 10 165
1200
1750
6.5
12.0 0.25
500
121KD07 121KD07J 75
100 120(108~132) 10 200
1200
1750
7.8
13.0 0.25
420
151KD07 151KD07J 95
125 150(135~165) 10 250
1200
1750
9.7
15.0 0.25
330
181KD07 181KD07J 115
150 180(162~198) 10 300
1200
1750
11.7
16.0 0.25
280
201KD07 201KD07J 130
170 200(180~220) 10 340
1200
1750
13.0
17.0 0.25
250
221KD07 221KD07J 140
180 220(198~242) 10 360
1200
1750
14.0
19.0 0.25
230
241KD07 241KD07J 150
200 240(216~264) 10 395
1200
1750
15.0
21.0 0.25
210
271KD07 271KD07J 175
225 270(243~297) 10 455
1200
1750
18.0
24.0 0.25
185
301KD07 301KD07J 190
250 300(270~330) 10 500
1200
1750
20.0
26.0 0.25
165
331KD07 331KD07J 210
275 330(297~363) 10 550
1200
1750
23.0
28.0 0.25
150
361KD07 361KD07J 230
300 360(324~396) 10 595
1200
1750
24.0
32.0 0.25
140
391KD07 391KD07J 250
320 390(351~429) 10 650
1200
1750
26.0
35.0 0.25
130
431KD07 431KD07J 275
350 430(387~473) 10 710
1200
1750
28.0
40.0 0.25
115
471KD07 471KD07J 300
385 470(423~517) 10 775
1200
1750
29.0
42.0 0.25
105
511KD07 511KD07J 320
415 510(459~561) 10 845
1200
1750
31.0
45.0 0.25
100
561KD07 561KD07J 350
460 560(504~616) 10 925
1200
1750
35.0
49.0 0.25
90
621KD07 621KD07J 385
505 620(558~682) 10 1025 1200
1750
38.0
55.0 0.25
80
681KD07 681KD07J 420
560 680(612~748) 10 1120 1200
1750
42.0
60.0 0.25
75
751KD07 751KD07J 460
615 750(675~825) 10 1240 1200
1750
45.0
64.0 0.25
70
781KD07 781KD07J 485
640 780(702~858) 10 1290 1200
1750
48.0
69.0 0.25
65
821KD07 821KD07J 510
670 820(738~902) 10 1355 1200
1750
52.0
73.0 0.25
60
Notes: 1. The tolerance of varistor voltage between 18V and 27V is more than 10%.
2. Leakage Current (@83% of V1mA)IR50μA (180K~680K)
IR25μA (820K~821K)
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Electrical Ratings
7Φ SERIES
Items
Varistor Voltage
Test Condition/Description
The voltage between two terminals with the specified measuring
current 1mA.DC applied is called Vb.
Requirement
Maximum Allowable The recommended maximum sine wave voltage (RMS) or the
Voltage
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 The maximum current within the varistor voltage change of ±10%
Current
with the standard impulse current (8/20μs) applied one time.
Varistor Voltage
Temp. Coefficient
0.05%/
Surge Life
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.
7Φ series
180K to 680K
820K to 821K
25A (8/20μs)
50A (8/20μs)
ΔVb
Vb
10%
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Soldering Recommendation
Wave Lead Free Soldering Recommendation
300
250
Preheating
Soldering
Maximum Wave 265
Cooling
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.)
7Φ SERIES
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