f ea t ur e s l eia si z e : 1 81 2 l v a r ia b le c ap a ci t an c e l o pe r a t i n g v ol t a ge : 18 v d c ~3 8 5 v d c l h igh s u r ge s u pp r e ss c a p ab i li t y l b idi r e c t i ona l an d s ym m e tr i c a l v/i c h a r a c t e r i s t i c s l m ul t ila y e r c e r a m i c c on s tr u c t i o n t e c hn o log y l r o hs & h alo g en f r e e (h f ) c o m pl i an t l o pe r a t i n g t e m pe r a t u r e r an g e : - 4 0 ~ + 85 l st o r age t e m pe r a t u r e r ang e : - 40 ~ + 1 25 a p p li ca t i ons l u s ed t o h el p a c h ie v e e l e c tr o m ag n e t i c c o m pl i an c e o f e nd pr odu c t s l pr o v ides o n - b oa r d t r a n si e n t v ol t a g e pr o t e c t i on f o r ic s , c mo s and m o s f e t l s upp r e ss i on o f i n du c t i v e s w i t c hing o r o t he r t r a n si e n t e v en t s s u c h a s e f t a n d s u r g e v o l t a ge a t t he c i r c u i t b oa r d . l pr o t e c t io n o f c o m p o nen t s an d c i r c u i t s s e n si t i v e t o esd t r an s i en t s oc c u rr i n g o n p o w e r s u p pl i e s , c on tr o l a n d s i g nal lin e s . pa r t n umb e r c ode a 2 4 0 k 2 1 8 1 m s l ogo p a c k ag i ng 1 812 v ar i s t or v o l t age 24v st andard t o l eran ce k: 1 0% SM1812A series metal oxide varistors
elec t r i ca l c h a r ac t e r i s t i cs t y p e n u m b e r v a r i st o r v o l ta g e m a x . a ll o w a b l e v o l ta g e m a x . e n e r g y (10 / 1000 s) m a x . c l a m p i ng v o l ta g e (8 / 20 s) w i t h sta n d i n g s urg e c urr e n t (8 / 20 s) v 1ma ( v ) v ac ( v ) v dc ( v ) (j) i p ( a ) v c ( v ) i ( a ) 21 . 6 ~ 27 14 18 1 . 5 10 59 500 26 . 4 ~ 33 17 22 1 . 5 10 72 800 28 . 8 ~ 36 18 24 1 . 5 10 79 800 33 . 6 ~ 42 21 28 1 . 5 10 92 800 36 ~ 45 25 30 1 . 5 10 99 800 45 . 6 ~ 57 30 38 1 . 5 10 125 800 50 . 4 ~ 63 32 42 1 . 5 10 138 800 54 ~ 67 . 5 35 45 1 . 5 10 148 800 57 . 6 ~ 72 37 48 1 . 5 10 158 800 67 . 2 ~ 84 40 56 1 . 5 10 184 800 72 ~ 90 43 60 1 . 5 10 198 800 78 ~ 97 . 5 46 65 1 . 5 10 214 800 81 . 6 ~ 102 49 68 1 . 5 10 224 800 90 ~ 1 12 . 5 54 75 1 . 5 10 247 800 102 ~ 127 . 5 60 85 1 . 5 10 280 800 108 ~ 132 65 90 1 . 5 10 290 800 135 ~ 165 75 1 10 1 . 5 10 340 500 162 ~ 198 1 15 150 2 . 3 10 360 400 216 ~ 264 150 200 2 . 3 10 415 400 243 ~ 297 175 225 2 . 3 10 475 400 351 ~ 429 250 320 2 . 3 10 650 400 387 ~ 473 275 350 2 . 3 10 710 400 423 ~ 517 300 385 2 . 3 10 775 400 e n v i ronm e n t a l p e r f orm a n ce i te m s p ec i f i ca t i on s t est c ond i t i o n b i a s h u m i d i t y v v / v v ? 10 % 90 % rh , 40 o c , w or k i n g v o l t ag e , 1 000 hr s t her m a l s h o ck v v / v v ? 10 % -40 o c t o 85 o c , 3 0 m i n . c y c l e , 5 c y c l e s f u ll load v o l t ag e v v / v v ? 10 % w or k i ng v o l t age , 85 o c , 1000 h r s g e n e r a l t ec hn i ca l d a ta o pera t i ng t e m pera t ur e -40 ~+ 85 o c st orage t e m pera t ur e -40 ~+ 125 o c re s pon s e t i m e < 1n s s o l derab ili t y 245 5 o c , 3 1 s e c s o l der l ea c h re s i s t an c e 260 5 o c , 10 1 s e c t ap i ng p a c k age st orage cond i t i o n st orage t e m pera t ur e 5 ~ 40 o c re l a t i v e h u m i d i t y t o 6 5 % st orage t i m e 12 m on t h s m a x SM1812A240k SM1812A270k SM1812A300k SM1812A360k SM1812A390k SM1812A470k SM1812A530k SM1812A560k SM1812A600k SM1812A680k SM1812A760k SM1812A820k SM1812A900k SM1812A950k SM1812A101k SM1812A121k SM1812A151k SM1812A181k SM1812A241k SM1812A271k SM1812A391k SM1812A431k SM1812A471k
s o l d e r i ng p a r a m e t e r s - r e f l o w s o l d e r i ng ( s ur f ace m oun t d e v i ces) ref l ow c o n d i t i o n p b - f re e a s s e m b ly p r e hea t - t e m p e r at ur e m i n (t s ( m in) ) 150 c - t e m p e r at ur e m ax (t s ( max) ) 200 c - t im e ( mi n t o m ax) (t s ) 60 -180 s e c on ds a v e r a g e r a m p u p r ate ( l i q u i d s t e m p t l ) t o p eak 3 c /s e c ond m a x t s( max) t o t l - ra m p - u p rat e 3 c /s e c ond m a x ref lo w - t e m p e r at ur e (t l ) ( l i q u i d s ) 217 c - t im e ( mi n t o m ax) (t s ) 60 -150 s e c on ds p r e c a u ti o n f o r s o l d e r i ng p eak t e m p e r at ur e (t p ) 260 + 0 / -5 c no t e t ha t t h i s produ c t w ill be e a s il y d a m aged b y rap i d he a t i ng , rap i d c oo li ng or l o c a l hea t i ng . do no t g i v e hea t s ho c k o v er 100 c i n t he pro c e ss o f s o l der i ng . w e re c o m m end t o t a k e prehea t i ng a n d gradua l c oo li n g t im e w i t h i n 5 c o f act u a l p eak t e m p e r at ur e (t p ) 20 - 40 s e c ond s ra m p - d o wn rate 6 c /s e c ond m a x t im e 25 c t o p eak t e m p e r at ur e (t p ) 8 m i nu t e s m a x s o l d e r i n g g un pro ce dur e d o no t excee d 260 c no t e t he f o ll o w s , i n c a s e o f u s i n g s o l der gun f or rep l a c e m en t . 1) t he t i p t e m pera t ure m u s t be l e s s t han 28 0 f or t he per i od w i t h i n 3 s e c on d s b y u s i ng s o l der i ng gun u nder 3 0 w 2) t he s o l der i ng gun t i p s ha l l no t t ou c h t h i s produ c t d i re c t l y. s o l d e r i n g v o l u me no t e t h a t e x c e s s o f s o l der i ng v o l u m e w ill ea s il y ge t c ra c k t he bod y o f t h i s produ c t. d i m e n s i on s a nd r ec omm e nd e d p a d l a y o u t s y m bol m i l l i m ete r s i n c h e s l 4 . 50 0 . 4 0 0 . 177 0 . 01 6 w 3 . 20 0 . 2 0 0 . 126 0 . 00 8 t max. 3 . 40 0 . 134 w b 0 . 60 0 . 2 5 0 . 024 0 . 0 1 i 3 . 7 0 . 146 j 5 . 4 0 . 213 k 3 . 2 0 . 126 r a m p-do wn preheat c r i t i c a l z one t l t o t p t i m e t o pea k t e m pera t ure ( t 25 t o pea k ) t p t l t s ( m ax) t s ( m i n) 25 t e m p e r a t u re r a m p-up t ime rec o mm e nd e d s o l d e r i n g p a d l a y out
t a p i ng a nd r e e l s p e c i f i ca t i on s s y m bol m i l l i m ete r s i n c h e s w 12 . 00 0 . 2 0 0 . 472 0 . 00 8 e 1 . 75 0 . 1 0 0 . 069 0 . 00 4 f 5 . 50 0 . 0 5 0 . 217 0 . 00 2 d 1 . 55 0 . 0 5 0 . 061 0 . 00 2 d1 1 . 50 0 . 0 5 0 . 059 0 . 00 2 p 8 . 00 0 . 1 0 0 . 315 0 . 00 4 p 0 4 . 00 0 . 0 5 0 . 157 0 . 00 2 p 2 2 . 00 0 . 0 5 0 . 079 0 . 00 2 l 0 5 . 45 0 . 1 0 0 . 215 0 . 00 4 w 0 4 . 20 0 . 1 0 0 . 165 0 . 00 4 pac k i ng s p e c i f i c a t i on s s y m bol m i l l i m ete r s i n c h e s d0 13 .5 0 . 1 0 . 531 0 . 00 4 d1 178 2 . 0 7 . 008 0 . 07 9 d2 60 .0 0 . 5 2 . 362 0 . 0 2 w 1 13 . 08 0 . 2 0 . 515 0 . 00 8 t ap i ng s pe c i f i c a t i o n s t here s ha ll be t h e por t i on ha v i ng no produ ct i n bo t h t he head and t he end o f t ap i ng , and t her e s ha ll b e t he c o v er t ap e i n t he hea t o f t ap i n g . q uan t i t y o f produ c t s i n t he t ap i ng pa ck ag e si z e e i a ( e i a j ) 1812 st andard p a c k i ng q ua n t i t y ( p c s / ree l ) 1000
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