ZVX Series – Low Energy, Low Capacitance SMD Varistors
Varistor
Multilayer Technology
Varistor Plus
Description
The ZVX Series are low-energy (0.1 joules) varistor chips, designed specifically for the protection
of I/O line drivers and other sensitive semiconductor gates from the damaging effects of high
voltage, low-energy transients such as ESD events. Unlike other competitive low-energy
varistors, however, the ZVX Series offers all the protection features of standard varistor chips, and
exceptionally low values of capacitance. In these applications, as the frequency of data transfer
increases, lower capacitance is required to eliminate possible skewing of the data signals due to
capacitive loading.
In most cases, the 1KHz capacitance values of the ZVX Series are less than one half that of the
competition. Further, this series is offered in 0603, 0805 and 1206 sizes, with an expanded range
of voltages from 3V to 38Vdc. The ZVX Series offers a circuit design engineer the greatest range
of high-frequency, low-energy SMD varistor chips available in the marketplace today.
Features
• Operating voltage range (V
RMS
) ........2V to 30V
• Part number voltage range (V
DC
).......3V to 38V
• +125C continuous operating temperature
• Bi-directional, low clamping voltages
• Exceptionally low capacitance ratings
• 3 model sizes available….0603, 0805, 1206
• Dimensional and weight savings on PC board
• AgPd end terminations
• Non-coated chips guarantee excellent flammability rating
• Available in tape and reel for automatic pick and place
Applications
• ESD protection for components sensitive to
IEC 1000-4-2, MIL-STD 883C Method 3015.7 and other
industry specifications
• Excellent for I/O line protection, operating at high-speed
data transfer rates, due to very low capacitance values
• Replaces larger surface mount TVS diodes in many
applications
Absolute Maximum Ratings
Continuous:
Steady State Applied Voltage:
DC Voltage Range (V
DC
)
AC Voltage Range (V
RMS
)
Transient:
Single Pulse Peak Current (
I
P
), 8/20 µs Waveform
Single Pulse Transient Energy (W
MAX
), 10/1000 µs Waveform
Operating Ambient Temperature
Storage Temperature Range
Threshold Voltage Temperature Coefficient
Response Time
Value
3V to 38V
2V to 30V
30A to 40A
0.1J
-55
°C
to +125°C
-55
°C
to +150
°C
< - 0.05%/
°C
< 2ns
SEI Electronics Inc.
• P.O. Box 58789 • Raleigh, NC 27658-8789 • Telephone: (919) 850-9500 • FAX: (919) 850-9504
Toll Free: (888) SEI-SEI-SEI • www.seielect.com • email: marketing@seielect.com • ISO 9002 / QS 9000 Registered
13
ZVX Series – Low Energy, Low Capacitance SMD Varistor
Varistor Plus
Multilayer Technology
HOW TO ORDER:
ZVX
4
S
0805
ZVX SERIES (LOW ENERGY, LOW CAPACITANCE SMD VARISTORS)
400
R0
PACKAGING OPTIONS:
(See page 50 for dimensional specifications)
R0, R1 = 180mm (7") Plastic Reel
R2 = 330mm (13") Plastic Reel
MAXIMUM SURGE CURRENT (Amps):
300 = 30A
400 = 40A
EIA CHIP SIZE:
0603
0805
1206
V
N
TOLERANCE:
S = Special
MAXIMUM CONTINUOUS WORKING VOLTAGE (V
RMS
):
2=2
14 = 14
4=4
17 = 17
6=6
20 = 20
8=8
25 = 25
11 = 11
30 = 30
SERIES NAME
Standard Packaging Options / Quantities
Voltage
Range
(V
RMS
)
0603
R0
180mm
7"
R1
180mm
7"
R2
330mm
13"
R0
180mm
7"
Chip Size
0805
R1
180mm
7"
R2
330mm
13"
R0
180mm
7"
1206
R1
180mm
7"
R2
330mm
13"
Series
ZVX
Note:
2 to 14
1000
4000
15000
17
1000
3500
14000
20 to 30
1000
3500
14000
Chips packaged in plastic embossed tape.
1000
1000
1000
4000
3500
3500
15000
14000
14000
1000
1000
1000
4000
2500
2500
15000
14000
10000
SEI Electronics Inc.
• P.O. Box 58789 • Raleigh, NC 27658-8789 • Telephone: (919) 850-9500 • FAX: (919) 850-9504
Toll Free: (888) SEI-SEI-SEI • www.seielect.com • email: marketing@seielect.com • ISO 9002 / QS 9000 Registered
14
ZVX Series – Low Energy, Low Capacitance SMD Varistor
Multilayer Technology
Device Ratings and Characteristics
ZVX 2S 0603 300 - - to ZVX 30S 1206 400 - -
Catalog Number
Unit of Measure
ZVX 2S 0603 300 - -
ZVX 4S 0603 300 - -
ZVX 6S 0603 300 - -
ZVX 8S 0603 300 - -
ZVX 11S 0603 300 - -
ZVX 14S 0603 300 - -
ZVX 17S 0603 300 - -
ZVX 20S 0603 300 - -
ZVX 25S 0603 300 - -
ZVX 30S 0603 300 - -
ZVX 2S 0805 400 - -
ZVX 4S 0805 400 - -
ZVX 6S 0805 400 - -
ZVX 8S 0805 400 - -
ZVX 11S 0805 400 - -
ZVX 14S 0805 400 - -
ZVX 17S 0805 400 - -
ZVX 20S 0805 400 - -
ZVX 25S 0805 400 - -
ZVX 30S 0805 400 - -
ZVX 2S 1206 400 - -
ZVX 4S 1206 400 - -
ZVX 6S 1206 400 - -
ZVX 8S 1206 400 - -
ZVX 11S 1206 400 - -
ZVX 14S 1206 400 - -
ZVX 17S 1206 400 - -
ZVX 20S 1206 400 - -
ZVX 25S 1206 400 - -
ZVX 30S 1206 400 - -
Varistor Plus
V
RMS
Volts
2
4
6
8
11
14
17
20
25
30
2
4
6
8
11
14
17
20
25
30
2
4
6
8
11
14
17
20
25
30
V
DC
Volts
3.3
5.6
9
12
14
18
22
26
30
38
3.3
5.6
9
12
14
18
22
26
30
38
3.3
5.6
9
12
14
18
22
26
30
38
V
N
1 mA
Volts
4.1-6.0
7.6-9.3
11.0-14.0
14.0-18.3
16.5-20.3
22.9-28.0
25.2-31.3
31.0-38.0
37.0-46.9
42.3-51.7
4.1-6.0
7.6-9.3
11.0-14.0
14.0-18.3
16.5-20.3
22.9-28.0
25.2-31.3
31.0-38.0
37.0-46.9
42.3-51.7
4.1-6.0
7.6-9.3
11.0-14.0
14.0-18.3
16.5-20.3
22.9-28.0
25.2-31.3
31.0-38.0
37.0-46.9
42.3-51.7
V
C
Volts
10
15.5
20
25
40
38
48
58
65
77
10
15.5
20
25
30
40
48
58
65
77
10
15.5
20
25
30
40
48
58
65
77
I
C
8/20 µs
Amps
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
W
MAX
10/1000 µs
Joules
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
0.1
0.1
0.1
0.1
0.1
P
MAX
Watts
0.003
0.003
0.003
0.003
0.003
0.003
0.003
0.003
0.003
0.003
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.008
0.008
0.008
0.008
0.008
0.008
0.008
0.008
0.008
0.008
I
P
8/20 µs
Amps
30
30
30
30
30
30
30
30
30
30
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
C
(TYP)
1kHz
pF
200
165
145
135
120
110
100
100
90
80
500
340
290
275
200
165
145
140
110
100
840
720
620
540
500
250
210
200
180
165
L
(TYP)
100 mA/nS
nH
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
ZVX Series - Low Voltage SMD Varistors
Chip Size
0603
0805
1206
Voltage
Range
(V
RMS
)
2 - 30
2 - 30
2 - 30
Dimensions (mm)
L
W
1.60 ± 0.15 0.80 ± 0.10
2.00 ± 0.20 1.25 ± 0.15
3.20 ± 0.30 1.60 ± 0.20
t
MAX
0.9
1.0
1.0
SEI Electronics Inc.
• P.O. Box 58789 • Raleigh, NC 27658-8789 • Telephone: (919) 850-9500 • FAX: (919) 850-9504
Toll Free: (888) SEI-SEI-SEI • www.seielect.com • email: marketing@seielect.com • ISO 9002 / QS 9000 Registered
15
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