Metal Oxide Varistors
RGA Varistor
Varistors are Voltage dependent, nonlinear device which have
an electrical behavior similar to back-to-back zenor diodes.
RV series varistors are nonlinear resistors, consisting mainly of
zinc oxide and several kinds of metal oxide additives.
They are bilateral and symmetrical V-I characteristics curve and
unparalleled large peak current capability are used for absorp-
tion of transient voltage, suppression of pulse noise and circuit
voltage stabilization.
Features
• Fast response
• Excellent voltage ratio
• High stabilization for circuit voltage
• Unparalleled absorption for transient voltage characteristics
• Bilateral and symmetrical V-I Characteristics curve
Applications
• Surge Protection in consumer electronics
- Industrial electronics
- Telephone and telecommunication systems
- Automobile equipments
- Measuring and controller systems
- Electronic home appliances
- Gas and petroleum appliances
• Absorption of switching surge from various kinds of relays
and electro-magnetic valves.
• Electrostatic discharge and spike noise suppression.
• Protection of various kinds of transistors, diodes, ICs,
thyristors, triac semiconductors, and etc.
• Automobile control system such as transistorized ignition
system and electronic fuel injection system, etc.
Related Standards
• UL 1414, UL 1449
Part Numbering System
RV
Series
07
Diameter
05
ø5.0mm
07
ø7.0mm
10 ø10.0mm
14 ø14.0mm
20 ø20.0mm
K
Tolerance
K = 10%
250
AC Voltage
W
RGA Internal #
7267 Coldwater Canyon, North Hollywood. California 91605 • Phone (818) 765-8300 • Toll Free (800) 827-7422 • Fax (818) 765-2387
K2
Metal Oxide Varistors
Specifications
• Varistor Voltage Range ........................................18 to 1800 Vdc
• Peak Current For 8/20 µs Current Wave ............100 to 6500A
• Energy Range For 10/1000 µs Current Wave ....0.4 to 625 Joul
• Storage Temperature Range................................-40 to +125°C
• Operation Ambient Temperature Range ..............-40 to +85°C
• Typical Response Time........................................<25ns
• Insulation Resistance ..........................................>1000MΩ
100
90
80
70
60
50
40
30
20
10
0
Percent of Rated Value
50 60 70 80 90 100 110 120 130 140 150
Device Ratings and Characteristics
Part No.
Maximum
Allowable
Voltage
Varistor
Voltage
(@1mA)
Clamping Voltage
@ Test Current
(8/20 µs)
Vc(V)
44
42
39
39
39
51
47
43
43
43
60
53
53
53
53
73
65
65
65
65
86
77
77
77
77
104
93
93
93
93
123
110
110
110
110
150
135
135
135
135
Ip(A)
1
2.5
5
10
20
1
2.5
5
10
20
1
2.5
5
10
20
1
2.5
5
10
20
1
2.5
5
10
20
1
2.5
5
10
20
1
2.5
5
10
20
1
2.5
5
10
20
Maximum
Energy
(J)
10/1000 µs
Ambient Temperature (°C)
Current, Energy and Power Derating Curve
Device
Marking
ACrms(V) DC(V) Min. Vb(Vdc) Max.
RV05K11
RV07K11
RV10K11
RV14K11
RV20K11
RV05K14
RV07K14
RV10K14
RV14K14
RV20K14
RV05K17
RV07K17
RV10K17
RV14K17
RV20K17
RV05K20
RV07K20
RV10K20
RV14K20
RV20K20
RV05K25
RV07K25
RV10K25
RV14K25
RV20K25
RV05K30
RV07K30
RV10K30
RV14K30
RV20K30
RV05K35
RV07K35
RV10K35
RV14K35
RV20K35
RV05K40
RV07K40
RV10K40
RV14K40
RV20K40
Maximum
Typical
Peak Current Rated Capacitance
(8/20µs) Power
(@1K Hz)
(A)
(W)
(pF)
Standards
11
14
14.4
18
21.6
14
18
18.7
22
26.0
17
22
23.0
27
31.1
20
26
29.5
33
36.5
25
31
35
39
30
38
42
47
35
45
50
56
40
56
61
68
46
43
43
43
43
55
52
52
52
52
66
62
62
62
62
80
75
75
75
75
0.4
0.9
2.1
4.0
11.0
0.5
1.1
2.5
5.0
14.0
0.6
1.4
3.0
6.0
18.0
0.8
1.7
4.0
7.5
23.0
0.9
2.1
4.6
8.6
26.0
1.1
2.5
5.5
10.0
33.0
1.3
3.1
7.0
11.0
41.0
1.6
3.6
8.2
14.0
46.0
100
250
500
1000
2000
100
250
500
1000
2000
100
250
500
1000
2000
100
250
500
1000
2000
100
250
500
1000
2000
100
250
500
1000
2000
100
250
500
1000
2000
100
250
500
1000
2000
0.01
0.02
0.05
0.10
0.20
0.01
0.02
0.05
0.10
0.20
0.01
0.02
0.05
0.10
0.20
0.01
0.02
0.05
0.10
0.20
0.01
0.02
0.05
0.10
0.20
0.01
0.02
0.05
0.10
0.20
0.01
0.02
0.05
0.10
0.20
0.01
0.02
0.05
0.10
0.20
1600
3800
16000
25000
40000
1500
3600
11000
20000
30000
1450
3400
8000
16000
24500
1400
2900
6300
12200
20000
700
1600
5200
7000
13800
650
1550
4600
6750
13500
600
1500
3750
6500
12200
580
1200
2800
5500
11500
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
Note: 1. 05D series Varistor voltage test current by Dc 0.1mA
7267 Coldwater Canyon, North Hollywood. California 91605 • Phone (818) 765-8300 • Toll Free (800) 827-7422 • Fax (818) 765-2387
K3
Metal Oxide Varistors
Device Ratings and Characteristics
Part No.
Maximum
Allowable
Voltage
Varistor
Voltage
(@1mA)
Clamping Voltage
@ Test Current
(8/20 µs)
Vc(V)
145
135
135
135
135
175
165
165
165
165
210
200
200
200
200
260
250
250
250
250
325
300
300
300
300
355
340
340
340
340
380
360
360
360
360
415
395
395
395
395
475
455
455
455
455
Ip(A)
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
Maximum
Energy
(J)
10/1000 µs
Device
Marking
ACrms(V) DC(V) Min. Vb(Vdc) Max.
RV05K50
RV07K50
RV10K50
RV14K50
RV20K50
RV05K60
RV07K60
RV10K60
RV14K60
RV20K60
RV05K75
RV07K75
RV10K75
RV14K75
RV20K75
RV05K95
RV07K95
RV10K95
RV14K95
RV20K95
RV05K115
RV07K115
RV10K115
RV14K115
RV20K115
RV05K130
RV07K130
RV10K130
RV14K130
RV20K130
RV05K140
RV07K140
RV10K140
RV14K140
RV20K140
RV05K150
RV07K150
RV10K150
RV14K150
RV20K150
RV05K175
RV07K175
RV10K175
RV14K175
RV20K175
Maximum
Typical
Peak Current Rated Capacitance
(8/20µs) Power
(@1K Hz)
(A)
(W)
(pF)
Standards
50
65
74
82
90
60
85
90
100
110
75
100
108
120
132
95
125
135
150
165
115
150
162
180
198
130
170
185
200
225
140
180
198
220
242
150
200
216
240
264
2.5
5.5
12.0
22.0
38.0
3.0
6.5
15.0
28.0
45.0
4.0
7.8
18.0
32.0
55.0
4.8
9.7
22.0
40.0
70.0
5.9
11.7
27.0
50.0
85.0
6.5
13.0
30.0
57.0
95.0
7.0
14.0
32.0
60.0
100.0
8.0
15.0
35.0
63.0
108.0
8.5
18.0
40.0
70.0
127.0
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
310
860
1920
4300
8200
290
750
1800
3500
8000
270
530
1500
2500
5500
240
410
1200
2100
4200
140
300
620
1250
2500
120
250
570
1150
2300
110
250
560
1100
2200
110
240
550
1050
2200
100
220
530
1000
2100
175
225
247
270
303
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
Note: 1. 05D series Varistor voltage test current by Dc 0.1mA
7267 Coldwater Canyon, North Hollywood. California 91605 • Phone (818) 765-8300 • Toll Free (800) 827-7422 • Fax (818) 765-2387
K4
Metal Oxide Varistors
Device Ratings and Characteristics
Part No.
Maximum
Allowable
Voltage
Varistor
Voltage
(@1mA)
Clamping Voltage
@ Test Current
(8/20 µs)
Vc(V)
505
500
500
500
500
600
550
550
550
550
620
595
595
595
595
675
650
650
650
650
745
710
710
710
710
810
775
775
775
775
880
845
845
845
845
940
915
915
915
915
1050
1025
1025
1025
1025
1150
1120
1120
1120
1120
Ip(A)
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
Maximum
Energy
(J)
10/1000 µs
Device
Marking
ACrms(V) DC(V) Min. Vb(Vdc) Max.
RV05K195
RV07K195
RV10K195
RV14K195
RV20K195
RV05K210
RV07K210
RV10K210
RV14K210
RV20K210
RV05K230
RV07K230
RV10K230
RV14K230
RV20K230
RV05K250
RV07K250
RV10K250
RV14K250
RV20K250
RV05K275
RV07K275
RV10K275
RV14K275
RV20K275
RV05K300
RV07K300
RV10K300
RV14K300
RV20K300
RV05K320
RV07K320
RV10k320
RV14K320
RV20K320
RV05K350
RV07K350
RV10K350
RV14K350
RV20K350
RV05K385
RV07K385
RV10K385
RV14K385
RV20K385
RV05K420
RV07K420
RV10K420
RV14K420
RV20K420
Maximum
Typical
Rated Capacitance
Peak Current
(8/20µs) Power
(@1KHz)
(A)
(W)
(pF)
Standards
195
250
270
300
330
210
275
297
330
363
230
300
324
360
396
250
320
351
390
429
275
350
387
430
473
300
385
423
470
517
320
410
459
510
561
350
460
504
560
616
9.0
20.0
42.0
73.0
150.0
10.0
25.0
47.0
93.0
163.0
10.0
25.0
47.0
93.0
163.0
12.0
25.0
60.0
100.0
180.0
13.0
28.0
65.0
115.0
190.0
15.0
30.0
70.0
125.0
220.0
15.0
30.0
70.0
125.0
220.0
15.0
30.0
70.0
125.0
220.0
15.0
30.0
70.0
125.0
220.0
15.0
30.0
70.0
130.0
230.0
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
400
1200
2500
4500
6500
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
0.10
0.25
0.40
0.60
1.00
100
190
500
900
1800
90
180
400
850
1750
80
170
450
800
1700
80
160
430
800
1400
70
150
400
650
1350
70
130
300
550
1200
65
120
260
450
1050
65
120
200
400
850
65
120
170
350
570
60
110
160
350
550
385
505
558
620
682
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
°
°
°
°
°
°
°
°
°
°
°
°
°
°
°
420
560
612
680
748
Note: 1. 05D series Varistor voltage test current by Dc 0.1mA
°
°
°
7267 Coldwater Canyon, North Hollywood. California 91605 • Phone (818) 765-8300 • Toll Free (800) 827-7422 • Fax (818) 765-2387
K5
Metal Oxide Varistors
Device Ratings and Charcteristics
Part No.
Maximum
Allowable
Voltage
Varistor
Voltage
(@1mA)
Typical
Clamping Voltage
Maximum
Maximum
Rated Capacitance
@ Test Current
Energy
Peak Current
(8/20µs) Power
(@1K Hz)
Standards
(J)
(8/20 µs)
Device
Marking
ACrms(V) DC(V) Min. Vb(Vdc) Max.
RV05K460
RV07K460
RV10K460
RV14K460
RV20K460
RV07K485
RV10K485
RV14K485
RV20K485
RV07K510
RV10K510
RV14K510
RV20K510
RV10K550
RV14K550
RV20K550
RV10K625
RV14K625
RV20K625
RV10K680
RV14K680
RV20K680
RV14K1000
RV20K1000
Vc(V)
1290
1240
1240
1240
1240
1290
1290
1290
1290
1355
1355
1355
1355
1500
1500
1500
1650
1650
1650
1815
1815
1815
2970
2970
Ip(A)
5
10
25
50
100
10
25
50
100
10
25
50
100
25
50
100
25
50
100
25
50
100
50
100
10/1000 µs
(A)
(W)
(pF)
460
615
675
750
825
485
640
702
780
858
510
670
738
820
902
15.0
33.0
75.0
143.0
255.0
37.0
80.0
148.0
265.0
40.0
85.0
157.0
282.0
93.0
175.0
310.0
102.0
190.0
342.0
115.0
213.0
383.0
337.0
625.0
400
1200
2500
4500
6500
1200
2500
4500
6500
1200
2500
4500
6500
2500
4500
6500
2500
4500
6500
2500
4500
6500
4500
6500
0.10
0.25
0.40
0.60
1.00
0.25
0.40
0.60
1.00
0.25
0.40
0.60
1.00
0.40
0.60
1.00
0.40
0.60
1.00
0.40
0.60
1.00
0.60
1.00
60
100
150
330
530
90
150
330
500
90
150
330
500
140
300
480
140
300
460
130
200
400
150
250
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆
6
∆6
∆6
∆6
∆
6
∆
6
∆
6
°
°
°
°
°
°
550
745
819
910
1001
625
825
900
1000
1100
680
1000
895
990
1100
1800
1210
1980
1465 1620
Note: 1.05D series Varistor voltage test current by DC 0.1mA
Application Notes for UL Recognized Components Related Standards
Standard No.
Title
UL1414
Across-The-Line Components
UL1449
Transient Voltage
Surge Suppressors
Symbols
cUL
Transient Voltage
Surge Suppressors
∆
6
°
Selection Guide
1.
2.
3.
4.
5.
Determine the necessary steady-state voltage (working voltage).
Establish the transient energy absorbed by the varistor.
Calculate the peak transient current through the varistor.
Determine power dissipation requirement.
Select a model to provide the required voltage-clamping characterisics.
7267 Coldwater Canyon, North Hollywood. California 91605 • Phone (818) 765-8300 • Toll Free (800) 827-7422 • Fax (818) 765-2387
K6
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