Varistor Metal Oxide Varistor Products Page 197 Varistor Metal-Oxide Varistor Products

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 Metal-Oxide Varistors (MOVs) 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 2.7mm to 32mm. The voltage range is 250V to 2800 V (AC)RMS . For information on soldering considerations, refer to EC637 "Recommendations for Soldering Terminal Leads to MOV Varistor Discs." Features Standard disc size nominal 60mm diameter Discs have edge passivation insulation High peak pulse current range 50000A to 70000A Very high-energy capability W tm 880J to 10000J Absolute Maximum Ratings 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. Continuous CA Series Units Steady State Applied Voltage: AC Voltage Range (V M(AC)RMS ) 250 to 2800 V DC Voltage Range (V M(DC) ) 330 to 3500 V Transient: Peak Pulse Current (I TM ) For 8/20 s Current Wave(See Figure 2) 20,000 to 70,000 A Single-Pulse Energy Range For 2ms Current Square Wave (W TM ) 880 to 10,000 J Operating Ambient Temperature Range (T A ) -55 to +85C Storage Temperature Range (T STG ) - 55 to +85C Temperature Coefficient (V) of Clamping Voltage (V C ) at Specified Test Current <0.01 %/C For ratings of individual members of a series, see Device Ratings and Specifications chart Additional Information Datasheet Samples Resources

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