ROV Metal Oxide Varistors
Standard Series Specifications—20mm Devices
Table V8 - Rating and Characteristics
Varistor
Voltage
V@1.0mA
Part
Number
ROV20-180M
ROV20-220M
ROV20-270M
ROV20-330M
ROV20-390L
ROV20-470L
ROV20-560L
ROV20-680L
ROV20-820K
ROV20-101K
ROV20-121K
ROV20-151K
ROV20-181K
ROV20-201K
ROV20-221K
ROV20-241K
ROV20-271K
ROV20-301K
ROV20-331K
ROV20-361K
ROV20-391K
ROV20-431K
ROV20-471K
ROV20-511K
ROV20-561K
ROV20-621K
ROV20-681K
ROV20-751K
ROV20-781K
ROV20-821K
ROV20-911K
ROV20-102K
ROV20-112K
ROV20-182K
DC
(V)
18
22
27
33
39
47
56
68
82
100
120
150
180
200
220
240
270
300
330
360
390
430
470
510
560
620
680
750
780
820
910
1000
1100
1800
Tolerance
±20%
±20%
±20%
±20%
±15%
±15%
±15%
±15%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
±10%
Maximum
Allowance
Voltage
AC
DC
(V
RMS
)
(V)
11
14
17
20
25
30
35
40
50
60
75
95
115
130
140
150
175
195
210
230
250
275
300
320
350
385
420
460
485
510
550
625
680
1000
14
18
22
26
31
38
45
56
65
85
100
125
150
170
180
200
225
250
275
300
320
350
385
418
460
505
560
615
640
670
745
825
895
1465
Maximum
Clamping
Voltage
V@10A
(V)
36*
43*
53*
65*
77*
93*
110*
135*
135
165
200
250
300
340
360
395
455
505
550
595
650
710
775
842
920
1025
1120
1240
1290
1355
1500
1650
1815
2970
Maximum
Surge Current
Rated
Energy
(8x20µs)
Waltage (10x1000µs)
1 Time
2 Times
(A)
(A)
(W)
(J)
2000
2000
2000
2000
2000
2000
2000
2000
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
6500
1000
1000
1000
1000
1000
1000
1000
1000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
4000
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
7.0
8.0
10.0
12.0
14.0
17.0
20.0
24.0
44.0
56.0
64.0
88.0
104.0
114.0
124.0
134.0
158.0
168.0
184.0
208.0
240.0
264.0
280.0
296.0
312.0
328.0
344.0
360.0
368.0
376.0
408.0
448.0
496.0
695.0
Capacitance
(Typical)
(pF)
27100
21200
20000
17200
15003
12080
11600
9600
5200
4000
3800
3000
2400
1829
1600
1422
1261
1100
1106
987
975
858
761
792
679
605
553
554
481
519
444
400
360
260
u
q
s
s
u
q
s
s
u
q
s
s
u
q
s
s
u
q
s
s
u
q
s
s
u
q
s
s
u
q
s
s
u
q
s
s
u
q
s
s
u
q
s
s
u
q
s
s
u
q
s
s
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
xqvs
Certification
†
* The clamping voltages from 180M to 680K are tested at 2.5A current.
†
Certification
Standard
Title
Symbols
File Number
UL1414
‡
Across-the-Line
Components
x
E223034
UL1449 (2nd Edition)
‡
Transient Voltage
Surge Suppressors
q
E223033
CSA
Accessories and Parts
for Electronic Equipment
v
220978
VDE
Varistors for Use in
Electronic Equipment
s
40006997
‡
For UL 1449 (2nd Edition), the maximum clamping voltage is measured at 500A.
48
Standard Series Specifications—20mm Devices Pulse Lifetime Ratings and V-I Characteristic Curves
...
Cont'd
Figure V13 - ROV20-180M~ROV20-680L
Pulse Lifetime Ratings
V-1 Characteristic Curve
100
1,000
10,000
Rectangular wave (µs)
Voltage (V)
Imax (A)
Current (A)
Figure V14 - ROV20-820K~ROV20-511K
Pulse Lifetime Ratings
V-1 Characteristic Curve
100
1,000
10,000
Rectangular wave (µs)
Voltage (V)
Imax (A)
Current (A)
Figure V15 - ROV20-561K-ROV20-182K
Pulse Lifetime Ratings
V-1 Characteristic Curve
100
1,000
10,000
Rectangular wave (µs)
Voltage (V)
Imax (A)
Current (A)
49
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