SV Series — Special Medium Voltage Leaded Varistors
Description
The SV Series of transient voltage suppressors are epoxy-coated square or rectangular
shaped leaded varistors with AC operating voltage ranging 60V to 550V. There are two
versions of these varistors.
The standard version of square varistors, featuring extremely high-current and high-
energy capabilities and low clamping voltages, provides an increased level of protection
necessary for the transients expected in telecommunications and AC power networks.
Compared to standard disc varistors, SV series varistors realize electrical equivalent
values in smaller nominal dimensions.
In the custom version of the SV series, a customers can design (on their own or with our
help) an optimum varistor with minimum dimensions to satisfy a specific application. A
customer can choose from the following parameters: non-standard DC/AC operating
voltage, leakage current, clamping voltage, maximum surge current, energy absorption
level, maximum dissipation power, as well as shape (dimensions being the function of
required electrical parameters and vice-versa.
Features
Standard Varistor Types
• AC operating voltage (Vrms) from 60V to 680V
• DC operating voltage (Vdc) from 85V to 895V
• 6 model sizes equivalent to standard disc varistors from
5mm to 23mm
• Smaller nominal dimensions
• Broad range of current and energy handling capabilities
• +85°C continuous operating temperature
• Low clamping voltage
• Available with straight and crimped leads
• UL, CAC, CEDD approved
• Available in tape and reel for automatic pick and place
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 both square and rectangular shape,
the maximum one being 23x23mm
• Broad range of current and energy handling capabilities
• +85°C continuous operating temperature
• Electrical parameters available for custom designs are:
AC/DC operating voltage, leakage current, clamping
voltage, maximum surge current, energy absorption
level, maximum dissipation power and threshold voltage
temperature coefficient
General Technical Data
Climatic Category
Operating Temperature
Storage Temperature Range
Threshold Voltage Temperature Coefficient
Isolation Voltage Capability
Response Time
Insulation Resistance
40 / 85 / 56
-40°C to +85°C
-40°C to +125°C
<-0.05%/°C
>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
How to Order
SV
SEI Type
1
Lead Style
140
Vrms
K
Tolerance
14
Disc Diameter
B
Packaging
XX
Special
Lead Style
1
5
Description
Straight
Kinked
Code
K
S
Tolerance
10%
Special
Size (mm)
5
7
10
14
20
23
Code
B
R
A
Description
Bulk
Tape and reel
Ammo
Toll Free: (888) SEI-SEIS
(888) 734-7347
www.seielect.com
41
email: marketing@seielect.com
Rev 10/06
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