varistor products ?2011 littelfuse, inc. revision: february 21, 2011 ha varistor series industrial high energy terminal varistors > ha series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/ha.html for current information. hiCenergy movs 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 ?elds. 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 speci?cations table for part number and brand information. features t rohs compliant and leadCfree t wide operating voltage range v m(ac)rms 110v to 750v t 5 x p e j t d t j [ f t b w b j m b c m f 32mm and 40mm t ) j h i f o f s h z b c t p s q u j p o capability w tm = 170j to 1050j t ) j h i q f b l q v m t f d v s s f o u capability, itm = 25,000a to 40,000a t 3 j h j e u f s n j o b m t g p s secure mounting t " w b j m b c m f j o u s j n n f e version for through hole board mounting C designation "hc" t / p e f s b u j o h v q u p 85oc ambient agency approvals absolute maximum ratings t ' p s s b u j o h t p g j o e j w j e v b m n f n c f s t p g b t f s j f t
t f f % f w j d f 3 b u j o h t b o e 4 q f d j m d b u j p o t d i b s u 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 speci?cation 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: 1 f b l 1 v m t f $ v s s f o u * tm ) ' p s t $ v s s f o u 8 b w f 4 f f ' j h v s f 25,000 to 40,000 a single pulse energy range ' p s n t $ v s s f o u 4 r v b s f x b w f 8 tm ) 160 to 1050 j operating ambient temperature range (t a ) -55 to +85 oc storage temperature range (t stg ) -55 to +125 oc temperature coef?cient (a v ) of clamping voltage (v c ) at speci?ed test current <0.01 ? $ ) j o 1 p u & |