Varistor Metal Oxide Varistor Products Page 179 Varistor Metal-Oxide Varistor Products

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 Metal-Oxide Varistors (MOVs) Industrial High Energy Terminal Varistors > HA Series HA Varistor Series Description HA Series transient surge suppressors are industrial high energy Metal-Oxide Varistors (MOVs). They are designed to provide secondary surge protection in the outdoor and service entrance environment (distribution panels) of buildings, and also in industrial applications for motor controls and power supplies used in the oil-drilling, mining, and transportation fields. The design of the HA Series of MOVs provide rigid terminals for screw mounting. Also available in a clipped lead version for through hole board placement or to accommodate soldered leads designation "HC." See Ratings and Specifications Table for part number and brand information. Features Lead-free, Halogen-Free and RoHS compliant. Wide operating voltage range V M(AC)RMS 110V to 750V Two disc sizes available 32mm and 40mm High energy absorption capability W TM = 170J to 1050J High peak pulse current capability, ITM = 25,000A to 40,000A Rigid terminals for secure mounting Available in trimmed version for through hole board mounting - Designation "HC" No derating up to 85C ambient Agency Approvals Absolute Maximum Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart 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 HA Series Units Steady State Applied Voltage: AC Voltage Range (V M(AC)RMS ) 110 to 750 V DC Voltage Range (V M(DC) ) 148 to 970 V Transients: Peak Pulse Current (I TM ) For 8/20 s Current Wave (See Figure 2) 25,000 to 40,000 A Single Pulse Energy Range For 2ms Current Squarewave (W TM ) 160 to 1050 J Operating Ambient Temperature Range (T A ) -55 to +85 C Storage Temperature Range (T STG ) -55 to +125 C Temperature Coefficient (a V ) of Clamping Voltage (V C ) at Specified Test Current <0.01 %/C Hi-Pot Encapsulation (COATING Isolation Voltage Capability) (Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301) 2500 V COATING Insulation Resistance 1000 M RoHS Agency Agency Approval Agency File Number UL1449 E320116 22.2-1 91788 Additional Information Datasheet Samples Resources

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