? outline dimensions ????? web ???u??E??? ?????????_J for details of outline dimensions, refer to our web site or the semiconductor short form catalog. as for the marking, refer to the specification marking,terminal connection. ratings www.shindengen.co.jp/product/semi/ 68 u181 VR-51B ~?? absolute maximum ratings ?? t 1 25unless otherwise specified ??? tl=25 electrical characteristics tl=25 ?? t 1 25unless otherwise specified ?? item ? symbol conditions ? ratings g unit ? storage temperature tstg 30125 ??? junction temperature tj 125 average rectifed forward current io 50hz ? , ?? , ta=40 50hz sine wave,resistance load, ta=40 0.15 arms ^` peak surge forward current i fsm 50hz, ? , R? ,1 tj=25 50hz,sine wave,non-repetitive,1cycle, tj=25 7.5 arms ^ over current i(oc) 50hz, ? , ta=25 50hz,sine wave, ta=25 io2io(3)io io2io(3min.)io arms ?R forward voltage v f i f =1ma ??y pulse measurement min 1.55 max 2.05 v i f =10ma min 1.85 max 2.35 i f =70ma min 2.15 max 2.65 ? thermal resistance ja ????g junction to ambient max 270 /w ? ? ? ? 1? 2?
$ o ? n n package : ax06 ? 51 98 ?thd ? varistor
www.shindengen.co.jp/product/semi/ sine wave 50hz y?? 50hz sine wave is used for measurements. ?u?????????? typical ?y???g??? semiconductor products generally have characterristic variation. typicalastatisticalaverageofthedevicesability. ? characteristic diagrams 69 u181 VR-51B ax06package
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