Varistor Products
High Energy Industrial Disc Varistors > CA Series
CA Varistor Series
Description
The CA Series of transient surge suppressors are industrial
high-energy disc varistors (MOVs) intended for special
applications requiring unique electrical contact or packaging
methods provided by the customer. The electrode finish
of these devices is solderable and can also be used with
pressure contacts. Discs of the same diameter may be
stacked.
This series of industrial disc varistors are nominal 60mm
diameter, with disc thickness ranging from 2.0mm
minimum to 32mm maximum. The voltage range is 250V
to 2800 V(AC)RMS
.
For information on soldering considerations, refer to EC637
"Recommendations for SolderingTerminal Leads to MOV
Varistor Discs."
Features
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nominal 60mm
diameter
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current range
50000A to 70000A
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capability Wtm
passivation insulation
880J to 10000J
Absolute Maximum Ratings
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Continuous
CA Series
Units
Steady State Applied Voltage:
AC Voltage Range (VM(AC)RMS
)
250 to 2800
330 to 3500
V
V
DC Voltage Range (VM(DC)
)
Transient:
Peak Pulse Current (ITM
)
For 8/20μs Current Wave(See Figure 2)
20,000 to 70,000
A
Single-Pulse Energy Range
For 2ms Current Square Wave (WTM
Operating Ambient Temperature Range (TA)
Storage Temperature Range (TSTG
Temperature Coefficient (V) of Clamping Voltage (VC) at Specified Test Current
)
880 to 10,000
-55 to +85
- 55 to +85
<0.01
J
°C
)
°C
%/°C
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
©2009 Littelfuse, Inc.
177
CAVaristor Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ca.html for current information.
Revision: September 3, 2009