Metal Oxide Varistors
07D Series
Features
l Wide operating voltage (V1mA) range from 18V to 820V
l Fast responding to transient over-voltage.
l Large absorbing transient energy capability.
l Low clamping ratio and no following-on current.
General Information
l Surge protection in consumer electronics
l Surge protection in industrial electronics
General Characteristics
l Relay and electromagnetic valve surge absorption
l Body: Nickel Plated
l Transistor, diode, IC, thyristor or triac semiconductor
l Devices with No Leads: Nickel Plated
protection
l Operating Temperature: -40ºC to +85ºC
l Surge protection in electronic home appliances, gas and
l Storage Temperature: -40 ºC to +125ºC
petroleum appliances
Part Number Code
0
Element Diameter
7
D
4
Type
D:Disk
7
1
K
J
Surge Series
Nominal Varistor Voltage
1
No Suffix:Standard
Type
471=47*10 V
Varistor Voltage
Tolerance
J:High Surge Type
K = ±10 %
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
Revised: 2018-08-09
Page:1
Metal Oxide Varistors
07D Series
Electrical Characteristics
Type Number
Varistor
Voltage
Max. Allowable
Voltage
Max. Energy
(2ms)
VAC(V) VDC(V)
(J)
(J)
Standard High Surge
Standard
High Surge
V1mA(V)
07D180K
/
15~22
11
14
0.8
07D220K
/
20~26
14
18
07D270K
/
24~30
17
07D330K
/
30~36
07D390K
/
07D470K
Max. Clamping
Voltage
(8/20μs)
Withstanding Surge
Current(8/20μs)
I(A)
I(A)
Standard High Surge
IP(A)
VC(V)
/
2.5
38
250
0.9
/
2.5
43
22
1.1
/
2.5
20
26
1.4
/
35~43
25
31
1.6
/
42~52
30
38
07D560K
/
50~62
35
07D680K
/
61~75
07D820K
07D820KJ
07D101K
Typical
Rated
Capacitance
Power
(Reference)
(W)
@1KHz(pf)
/
0.02
3500
250
/
0.02
2800
53
250
/
0.02
2200
2.5
65
250
/
0.02
1800
/
2.5
77
250
/
0.02
1450
2.0
/
2.5
93
250
/
0.02
1150
45
2.4
/
2.5
110
250
/
0.02
1050
40
56
2.9
/
2.5
135
250
/
0.02
970
74~90
50
65
3.4
4.3
10
135
1200
1750
0.25
930
07D101KJ
90~110
60
85
4.2
5.3
10
165
1200
1750
0.25
860
07D121K
07D121KJ
108~132
75
100
5.0
6.3
10
200
1200
1750
0.25
670
07D151K
07D151KJ
135~165
95
125
6.3
7.9
10
250
1200
1750
0.25
490
07D181K
07D181KJ
162~198
115
150
7.6
9.5
10
300
1200
1750
0.25
330
07D201K
07D201KJ
180~220
130
170
8.4
10.5
10
340
1200
1750
0.25
240
07D221K
07D221KJ
198~242
140
180
9.2
11.6
10
360
1200
1750
0.25
190
07D241K
07D241KJ
216~264
150
200
10.1
12.6
10
395
1200
1750
0.25
165
07D271K
07D271KJ
243~297
175
225
11.3
14.2
10
455
1200
1750
0.25
150
07D301K
07D301KJ
270~330
195
250
12.6
15.8
10
505
1200
1750
0.25
135
07D331K
07D331KJ
297~363
210
275
13.9
17.3
10
550
1200
1750
0.25
130
07D361K
07D361KJ
324~396
230
300
15.1
18.9
10
595
1200
1750
0.25
125
07D391K
07D391KJ
351~429
250
320
16.4
20.5
10
650
1200
1750
0.25
105
07D431K
07D431KJ
387~473
275
350
18.1
22.6
10
710
1200
1750
0.25
100
07D471K
07D471KJ
423~517
300
385
19.7
24.7
10
775
1200
1750
0.25
90
07D511K
07D511KJ
459~561
320
418
21.4
26.8
10
842
1200
1750
0.25
80
07D561K
07D561KJ
504~616
350
460
23.5
29.4
10
920
1200
1750
0.25
75
07D621K
07D621KJ
558~682
385
505
26.0
32.6
10
1025
1200
1750
0.25
70
07D681K
07D681KJ
612~748
420
560
28.6
35.7
10
1120
1200
1750
0.25
65
07D751K
07D751KJ
675~825
460
615
31.5
39.4
10
1240
1200
1750
0.25
61
07D781K
07D781KJ
702~858
485
640
32.8
41.0
10
1290
1200
1750
0.25
54
07D821K
07D821KJ
738~902
510
670
34.4
43.1
10
1355
1200
1750
0.25
48
Note: The energy (10/1000μs) is about 1.4 times of energy(2ms)
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
Revised: 2018-08-09
Page:2
Metal Oxide Varistors
07D Series
Electrical Ratings
Items
Test Condition/Description
Requirement
Varistor Voltage
The voltage between two terminals with the specified measuring current 1mA.DC applied is called
Vb.
Maximum Allowable
Voltage
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
I
1.0
0.9
Maximum Clamping
Voltage
B
0.5
To meet the
Specified value
T2
0.1
0.0
O1
C
T
t
30% max.
T1
T1=1.25*T=8μs±20%
T2=20μs±20%
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.
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.
180K to 680K
15A (8/20μs)
820K to821K
50A (8/20μs)
7Φ series
ΔVb
≤ ±10%
Vb
Surge Life
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
Revised: 2018-08-09
Page:3
Metal Oxide Varistors
07D Series
Soldering Recommendation
Wave Lead Free Soldering Recommendation
Item
Conditions
Peak Temperature
265ºC
Dipping Time
10 seconds (max.)
Soldering
1 time
300
Preheating
Soldering
Maximum Wave 265°C
Cooling
Temperature(°C)
250
200
150
100
50
0
0
0.5
1
1.5
2
2.5
3
3.5
4
Time(minutes)
Recommendation Reworking Conditions with Soldering Iron
Item
Conditions
Temperature of Soldering Iron-tip
360ºC (max.)
Soldering Time
3 seconds (max.)
Distance from Varistor
2mm (min.)
Dimensions
TABLE 1
Symbol
Millimeters
Inches
H(max.)
12.0
0.472
L(min.)
15.0
0.591
D(max.)
9.0
0.354
D1(±1.0)
5.0
0.197
T(max.)
TABLE 2
d(±0.1)
0.6
0.024
Packaging Quantity: 1000pcs/bag
TABLE 2---T(max.)
Model
Millimeters
Inches
Model
Millimeters
Inches
180K~390K
5.5
0.217
331K~391K
7.5
0.295
470K~680K
6.0
0.236
431K~561K
8.0
0.315
820K~151K
6.5
0.256
621K~781K
8.5
0.335
181K~271K
7.0
0.276
821K
9.0
0.354
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
Revised: 2018-08-09
Page:4
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