7Φ-W3 SERIES
Metal Oxide Varistors (MOV) Data Sheet
Features
■
■
■
■
■
■
■
■
Wide operating voltage (V
1mA
) 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℃ ~ +105℃
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:13-Apr.-18
1 / 12
www.brightking.com
7Φ-W3 SERIES
Dimensions
Table 1
Unit: mm
Symbol
H
H1
L(min.)
L1(min.)
D
F(±0.8)
T
e(±0.8)
d(±0.05)
d1(±0.4)
Dimension
7.5~12.0
9.0~13.5
20.0
15.0
7.0~9.0
5.0
Table 2
Table 2
0.6
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
e
Table 2
Unit: mm
Model
241K
271K
301K
331K
361K
391K
431K
471K
511K
561K
621K
681K
751K
781K
821K
T
2.1~4.6
2.1~4.9
2.2~5.0
2.2~5.1
2.4~5.2
2.5~5.4
2.7~5.7
2.8~6.0
2.9~6.2
3.1~6.5
3.3~7.1
3.5~7.3
3.8~7.0
3.9~7.2
4.1~7.5
e
2.0
2.2
2.3
2.3
2.5
2.6
2.8
3.0
3.2
3.4
3.7
4.0
4.1
4.2
4.4
1.3
1.4
1.6
1.5
1.6
1.7
1.9
2.2
1.6
1.8
2.0
1.6
1.7
1.8
1.9
Revision:13-Apr.-18
2 / 12
www.brightking.com
7Φ-W3 SERIES
Electrical Characteristics
Part
Number
Maximum
Allowable
Voltage
Varistor
Voltage
Maximum
Clamping
Voltage
Withstanding
Surge
Current
I (A)
Standard
250
250
250
250
250
250
250
250
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
1200
I (A)
High
Surge
500
500
500
500
500
500
500
500
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
1750
Maximum
Energy
(10/1000μs)
(J)
Standard
0.9
1.1
1.4
1.7
2.1
2.5
3.1
3.6
5.0
6.5
7.8
9.7
11.7
13.0
14.0
15.0
18.0
20.0
23.0
24.0
26.0
28.0
29.0
31.0
35.0
38.0
42.0
45.0
48.0
52.0
(J)
High
Surge
2.0
2.4
3.0
3.5
4.0
5.0
6.0
7.0
10.0
12.0
13.0
15.0
16.0
17.0
19.0
21.0
24.0
26.0
28.0
32.0
35.0
40.0
42.0
45.0
49.0
55.0
60.0
64.0
69.0
73.0
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
2800
2300
1800
1500
1300
1100
890
740
600
500
420
330
280
250
230
210
185
165
150
140
130
115
105
100
90
80
75
70
65
60
(W)
@1KHz (pf)
Rated
Power
Typical
Capacitance
(Reference)
Standard
High Surge
V
AC
(V)
V
DC
(V)
V
1mA
(V)
I
P
(A)
V
C
(V)
180KD07-W3
220KD07-W3
270KD07-W3
330KD07-W3
390KD07-W3
470KD07-W3
560KD07-W3
680KD07-W3
820KD07-W3
101KD07-W3
121KD07-W3
151KD07-W3
181KD07-W3
201KD07-W3
221KD07-W3
241KD07-W3
271KD07-W3
301KD07-W3
331KD07-W3
361KD07-W3
391KD07-W3
431KD07-W3
471KD07-W3
511KD07-W3
561KD07-W3
621KD07-W3
681KD07-W3
751KD07-W3
781KD07-W3
821KD07-W3
180KD07J-W3
220KD07J-W3
270KD07J-W3
330KD07J-W3
390KD07J-W3
470KD07J-W3
560KD07J-W3
680KD07J-W3
820KD07J-W3
101KD07J-W3
121KD07J-W3
151KD07J-W3
181KD07J-W3
201KD07J-W3
221KD07J-W3
241KD07J-W3
271KD07J-W3
301KD07J-W3
331KD07J-W3
361KD07J-W3
391KD07J-W3
431KD07J-W3
471KD07J-W3
511KD07J-W3
561KD07J-W3
621KD07J-W3
681KD07J-W3
751KD07J-W3
781KD07J-W3
821KD07J-W3
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
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
15~21.6
19.5~26
24~31
29.5~36.5
35~43
42~52
50~62
61~75
74~90
90~110
108~132
135~165
162~198
180~220
198~242
216~264
243~297
270~330
297~363
324~396
351~429
387~473
423~517
459~561
504~616
558~682
612~748
675~825
702~858
738~902
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
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
Notes: 1. The tolerance of varistor voltage between 18V and 27V is more than 10%.
2. Leakage Current (@83% of V
1mA
)：IR≤50μA (180K~680K)
IR≤25μA (820K~821K)
Revision:13-Apr.-18
3 / 12
www.brightking.com
7Φ-W3 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.
V
1mA@105℃
-V
1mA@25℃
1
× 100%(%/℃)
80
Energy
Withstanding Surge
Current
Varistor Voltage
Temp. Coefficient
V
1mA@25℃
×
≤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
7Φ series
180K to 680K
820K to 821K
25A (8/20μs)
50A (8/20μs)
ΔVb
Vb
10%
Revision:13-Apr.-18
4 / 12
www.brightking.com
7Φ-W3 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.)
Revision:13-Apr.-18
5 / 12
www.brightking.com
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
