ZOV Series
High Energy Varistors
Stackpole Electronics, Inc.
Resistive Product Solutions
Description:
ZOV Series of varistors are square shaped components that feature a wide range of surge
current and energy absorption capabilities over an operating voltage range from 60 to 680
Vrms. There are two versions of these varistors.
The standard version is available in 5 model sizes from 23mm to 60mm, with single-pulse
(8/20 us) surge capabilities ranging from 15kA to 80kA. Offered in both block format and
rigid leaded construction, these varistors provide excellent protection against high-energy
transients such as inductively coupled lightning strikes, line switching load surges, and
other transient events where large amounts on current are present.
The second version features a broad range of custom parameters to meet specific over-voltage protection requirements.
Customers are given the opportunity to design the optimum varistor with minimum dimensions to satisfy a custom TVS
application. Available customized parameters are: non-standard AC/DC operating voltages, maximum surge current,
maximum dissipation power and the varistors shape, the dimensions being a function of required electrical parameters
and vice-versa.
Both of these groups are offered in two versions: epoxy coated with rigid terminals and metalized varistor blocks. The
first version is designed to provide secondary surge protection in outdoor and service entrance environments
(distribution panels), in computers and also in industrial applications for motor controls and power supplies for
equipment in oil-drilling, mining and transportation. The second version is intended for applications with special contact
or installation requirements. The electrode finish of these devices is solderable, and can also be used with pressure
contacts for stacking applications..
Features:
Standard Varistor Types
•
•
•
•
•
•
•
•
•
AC operating voltage (Vrms) from 60V to 680V
DC operating voltage (Vdc) from 85V to 895V
Available either as epoxy coated varistors with rigid
terminals or as metalized varistor blocks
Broad range of current and energy handling
capabilities
Low limiting voltage @ lp/2
+85ºC continuous operating temperature
5 model sizes available 23, 25, 32, 40 and 60 mm
In-house testing according to VDE 0675
UL, CAC, CEDD approved
•
Full Custom Parameter Design Varistors
•
•
•
•
•
•
AC operating voltage range (Vrms) from 60V to 680V
DC operating voltage (Vdc) from 85V to 895V
Indefinite number of sizes of both square and
rectangular shape, the maximum one being 45x90mm
Broad range of current and energy handling capabilities
+85ºC continuous operating temperature
Available customized parameter are: AC/DC operating
voltage, leakage current, clamping voltage, maximum
surge current, energy absorption level, maximum
dissipation power and threshold voltage temperature
coefficient
Available either as epoxy coated varistors with rigid
terminals or as metalized varistor blocks
How to Order
SEI Type
Vrms
Tolerance
Model
Size
Design
ZOV
Code
ZOV
Description
High Energy Varistor
680
Code
J
K
L
M
S
J
Tolerance
5%
10%
15%
20%
Special
60
Size (mm)
23
25
32
40
60
Code
E
M
ME
E
Description
Epoxy coated varistor with rigid terminals
Metalized varistor block
Uncoated block with rigid terminals
Rev Date: 05/19/2010
This specification may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
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ZOV Series
High Energy Varistors
Stackpole Electronics, Inc.
Resistive Product Solutions
Size Parameters
Metallised Varistor Block
Size
23
25
32
40
60
Lmax
mm
23
23
30
34
43
Lemax
mm
18
20
28
31
39
Size
23
25
32
40
60
Epoxy Coated Varistor Block
Dmax
mm
25
25
35
36.5
48
R±1
mm
18.5
18.5
25.4
25.4
25.4
Hmax
mm
43
43
53
56
66
General Technical Data
Standard Values
Climatic Category
Operating Temperature
Storage Temperature Range
Threshold Voltag Temperature
Isolation Voltage Capability
Response Time
Insulation Resistance
40 / 85 / 56
-40ºC to +85ºC
-40ºC to +125ºC
< +0.05% / ºC
> 2.5kV
< 25 nS
> 1 Gohm
In accordance with CECC 42 000
In accordance with CECC 42 000
In accordance with IEC 60068-1
In accordance with CECC 42 000
Custom Designed Values
40 / 85 / 56
-40ºC to +85ºC
-40ºC to +125ºC
< +0.05% / ºC
> 2.5kV
< 25 nS
> 1 Gohm
Standard Packaging Options / Quantities
Series
Voltage Range
60 - 680
60 - 680
60 - 680
60 - 680
130 - 680
Varistor Sizes
23
25
32
40
60
Varistor Configuration Options (Available on All Sizes)
Epoxy coated with rigid terminals
Non-coated with rigid terminals
Metalized varistor blocks
ZOV
ZOVs will be packaged in resilient polystyrene plastic containers. The quantity per container will depend upon voltage, size and
configuration. Quantities generally range between 50 and 100 pieces per box, contact Stackpole for exact count.
Rev Date: 05/19/2010
This specification may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
2
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marketing@seielect.com
ZOV Series
High Energy Varistors
Stackpole Electronics, Inc.
Resistive Product Solutions
Device Ratings and Dimensions
Part Number
ZOV 60 K
ZOV 60 K
ZOV 60 K
ZOV 60 K
ZOV 75 K
ZOV 75 K
ZOV 75 K
ZOV 75 K
ZOV 95 K
ZOV 95 K
ZOV 95 K
ZOV 95 K
ZOV 130 K
ZOV 130 K
ZOV 130 K
ZOV 130 K
ZOV 130 K
ZOV 150 K
ZOV 150 K
ZOV 150 K
ZOV 150 K
ZOV 150 K
ZOV 230 K
ZOV 230 K
ZOV 230 K
ZOV 230 K
ZOV 230 K
ZOV 250 K
ZOV 250 K
ZOV 250 K
ZOV 250 K
ZOV 250 K
ZOV 275 K
ZOV 275 K
ZOV 275 K
ZOV 275 K
ZOV 275 K
ZOV 300 K
ZOV 300 K
ZOV 300 K
ZOV 300 K
ZOV 300 K
23
25
32
40
23
25
32
40
23
25
32
40
23
25
32
40
60
23
25
32
40
60
23
25
32
40
60
23
25
32
40
60
23
25
32
40
60
23
25
32
40
60
V
RMS
(volts)
60
60
60
60
75
75
75
75
95
95
95
95
130
130
130
130
130
150
150
150
150
150
230
230
230
230
230
250
250
250
250
250
275
275
275
275
275
300
300
300
300
300
V
DC
(volts)
85
85
85
85
100
100
100
100
125
125
125
125
170
170
170
170
170
200
200
200
200
200
300
300
300
300
300
320
320
320
320
320
350
350
350
350
350
385
385
385
385
385
V
N
@ 1 Ma
(volts)
100
100
100
100
120
120
120
120
150
150
150
150
205
205
205
205
205
240
240
240
240
240
360
360
360
360
360
390
390
390
390
390
430
430
430
430
430
470
470
470
470
470
V
C
@ IC
(volts)
165
165
165
165
200
200
200
200
250
250
250
250
340
340
340
340
340
395
395
395
395
395
595
595
595
595
595
650
650
650
650
650
710
710
710
710
710
775
775
775
775
775
I
C
(amps)
100
150
200
300
100
150
200
300
100
150
200
300
100
150
200
300
500
100
150
200
300
500
100
150
200
300
500
100
150
200
300
500
100
150
200
300
500
100
150
200
300
500
W
MAX
10/1000
μs
(joules)
90
125
250
300
100
145
280
340
135
190
380
450
180
250
500
600
960
215
300
600
720
1150
320
450
900
1080
1730
350
490
970
1160
1860
380
530
1060
1280
2050
440
615
1225
1470
2350
P
MAX
(watts)
1.0
1.0
1.2
1.4
1.0
1.0
1.2
1.4
1.0
1.0
1.2
1.4
1.0
1.0
1.2
1.4
1.6
1.0
1.0
1.2
1.4
1.6
1.0
1.0
1.2
1.4
1.6
1.0
1.0
1.2
1.4
1.6
1.0
1.0
1.2
1.4
1.6
1.0
1.0
1.2
1.4
1.6
I
MAX
8/20
μs
(amps)
18,000
20,000
30,000
45,000
18,000
20,000
30,000
45,000
18,000
20,000
30,000
45,000
18,000
20,000
30,000
45,000
80,000
18,000
20,000
30,000
45,000
80,000
18,000
20,000
30,000
45,000
80,000
18,000
20,000
30,000
45,000
80,000
18,000
20,000
30,000
45,000
80,000
18,000
20,000
30,000
45,000
80,000
C
@ 1 kHz
(pF)
3850
4850
9700
12000
3500
4500
8900
11000
2950
3680
7470
9200
2310
2900
5780
7200
11520
1990
2480
4960
6100
9760
1320
1650
3300
4060
6490
1220
1530
3050
3760
6050
1100
1380
2770
3400
5440
1010
1270
2540
3130
5000
t
MAX
(mm)
1.0
1.0
1.0
1.0
1.1
1.1
1.1
1.1
1.3
1.3
1.3
1.3
1.5
1.5
1.5
1.5
1.5
1.7
1.7
1.7
1.7
1.7
2.4
2.4
2.4
2.4
2.4
2.6
2.6
2.6
2.6
2.6
2.8
2.8
2.8
2.8
2.8
3.1
3.1
3.1
3.1
3.1
T
MAX
(mm)
7.7
7.7
7.7
7.7
7.9
7.9
7.9
7.9
8.1
8.1
8.1
8.1
8.1
8.1
8.1
8.1
8.1
8.3
8.3
8.3
8.3
8.3
9.0
9.0
9.0
9.0
9.0
9.2
9.2
9.2
9.2
9.2
9.4
9.4
9.4
9.4
9.4
9.7
9.7
9.7
9.7
9.7
Rev Date: 05/19/2010
This specification may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
3
www.seielect.com
marketing@seielect.com
ZOV Series
High Energy Varistors
Stackpole Electronics, Inc.
Resistive Product Solutions
Device Ratings and Dimensions
Part Number
ZOV 320 K
ZOV 320 K
ZOV 320 K
ZOV 320 K
ZOV 320 K
ZOV 385 K
ZOV 385 K
ZOV 385 K
ZOV 385 K
ZOV 385 K
ZOV 420 K
ZOV 420 K
ZOV 420 K
ZOV 420 K
ZOV 420 K
ZOV 460 K
ZOV 460 K
ZOV 460 K
ZOV 460 K
ZOV 460 K
ZOV 510 K
ZOV 510 K
ZOV 510 K
ZOV 510 K
ZOV 510 K
ZOV 550 K
ZOV 550 K
ZOV 550 K
ZOV 550 K
ZOV 550 K
ZOV 680 K
ZOV 680 K
ZOV 680 K
ZOV 680 K
ZOV 680 K
23
25
32
40
60
23
25
32
40
60
23
25
32
40
60
23
25
32
40
60
23
25
32
40
60
23
25
32
40
60
23
25
32
40
60
V
RMS
(volts)
320
320
320
320
320
385
385
385
385
385
420
420
420
420
420
460
460
460
460
460
510
510
510
510
510
550
550
550
550
550
680
680
680
680
680
V
DC
(volts)
420
420
420
420
420
505
505
505
505
505
560
560
560
560
560
615
615
615
615
615
670
670
670
670
670
745
745
745
745
745
895
895
895
895
895
V
N
@ 1 Ma
(volts)
510
510
510
510
510
620
620
620
620
620
680
680
680
680
680
750
750
750
750
750
820
820
820
820
820
910
910
910
910
910
1100
1100
1100
1100
1100
V
C
@ IC
(volts)
840
840
840
840
840
1025
1025
1025
1025
1025
1120
1120
1120
1120
1120
1240
1240
1240
1240
1240
1355
1355
1355
1355
1355
1500
1500
1500
1500
1500
1815
1815
1815
1815
1815
I
C
(amps)
100
150
200
300
500
100
150
200
300
500
100
150
200
300
500
100
150
200
300
500
100
150
200
300
500
100
150
200
300
500
100
150
200
300
500
W
MAX
10/1000
μs
(joules)
480
680
1350
1620
2600
500
690
1390
1660
2660
530
740
1480
1780
2850
580
810
1610
1930
3090
600
840
1680
2010
3220
650
900
1810
2170
3470
770
1080
2160
2590
4140
P
MAX
(watts)
1.0
1.0
1.2
1.4
1.6
1.0
1.0
1.2
1.4
1.6
1.0
1.0
1.2
1.4
1.6
1.0
1.0
1.2
1.4
1.6
1.0
1.0
1.2
1.4
1.6
1.0
1.0
1.2
1.4
1.6
1.0
1.0
1.2
1.4
1.6
I
MAX
8/20
μs
(amps)
18,000
20,000
30,000
45,000
80,000
18,000
20,000
30,000
45,000
80,000
18,000
20,000
30,000
45,000
80,000
18,000
20,000
30,000
45,000
80,000
18,000
20,000
30,000
45,000
80,000
18,000
20,000
30,000
45,000
80,000
18,000
20,000
30,000
45,000
80,000
C
@ 1 kHz
(pF)
990
1240
2470
3050
4880
810
1020
2040
2500
4000
740
930
1850
2280
3650
670
840
1680
2060
3300
610
770
1530
1900
3040
550
690
1380
1700
2720
460
570
1150
1400
2240
t
MAX
(mm)
3.2
3.2
3.2
3.2
3.2
3.8
3.8
3.8
3.8
3.8
4.4
4.4
4.4
4.4
4.4
4.8
4.8
4.8
4.8
4.8
5.2
5.2
5.2
5.2
5.2
5.9
5.9
5.9
5.9
5.9
6.9
6.9
6.9
6.9
6.9
T
MAX
(mm)
9.9
9.9
9.9
9.9
9.9
10.6
10.6
10.6
10.6
10.6
10.9
10.9
10.9
10.9
10.9
11.4
11.4
11.4
11.4
11.4
11.8
11.8
11.8
11.8
11.8
12.5
12.5
12.5
12.5
12.5
13.5
13.5
13.5
13.5
13.5
Rev Date: 05/19/2010
This specification may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
4
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