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| revision: december 01, 2010, 13:50 ?2010 littelfuse, inc. speci?cations are subject to change without notice. transient voltage suppression diodes 35 surface mount C 1000w > 1ksmb series 1ksmb series please refer to http://www.littelfuse.com/series/1ksmb.html for current information. the 1ksmb series is designed speci?cally to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. description 1ksmb series agency approvals features t ) b m p h f o ' s f f t 3 p ) 4 d p n q m j b o u t ' p s t v s g b d f n p v o u f e applications to optimize board space t - p x q s p m m f q b d l b h f t # v j m u j o t u s b j o s f m j f g t 5 z q j d b m n b y j n v n temperature coef?cient v # 3 y 7 # 3 ! ? $ y ? 5 t ( m b t t q b t t j w b u f e d i j q junction t 8 q f b l q v m t f q p x f s capability at 101000s x b w f g p s n
s f q f u j u j p o s b u f (duty cycles):0.01% t ' b t u s f t q p o t f u j n f typically less than 1.0ps from 0v to bv min t & y d f m m f o u d m b n q j o h capability t - p x j o d s f n f o u b m t v s h f resistance t 5 z q j d b m * 3 less than 1a above 12v t ) j h i 5 f n q f s b u v s f soldering guaranteed: 260c/40 seconds at terminals t 1 m b t u j d q b d l b h f i b t 6 o e f s x s j u f s t - b c p s b u p s z ' m b n n b c j m j u z 7 0 t . b u u f 5 j o - f b e o g s f f 1 m b u f e t " w b j m b c m f j o c s f b l e p x o voltage from 6.8v to 160v specially designed for automotive applications t 0 g g f s t ) j h i 4 v s h f s b u j o h j o d p n q b d u q b d l b h f c s j e h f t u i f h b q c f u x f f o 8 b o e , 8 applications 5 7 4 e f w j d f t b s f j e f b m g p s u i f q s p u f d u j p o p g * 0 * o u f s g b d f t
v cc c v t b o e p u i f s w v m o f s b c m f d j s d v j u t v t f e j o 5 f m f d p n
$ p n q v u f s
* o e v t u s j b m b o e $ p o t v n f s f m f d u s p o j d b q q m j d b u j p o t maximum ratings and thermal characteristics (t a =25 o c unless otherwise noted) 1 b s b n f u f s symbol value unit 1 f b l 1 v m t f 1 p x f s % j t t j q b u j p o b u t a ? $ c z y ? t x b w f g p s n ' j h / p u f / p u f 1 1 1 . 1000 8 1 p x f s % j t t j q b u j p o p o j o m o j u f i f b u t j o l b u 5 a =50 0 c 1 m(av) 5.0 8 1 f b l ' p s x b s e 4 v s h f $ v s s f o u n t 4 j o h m f ) b m g 4 j o f 8 b w f / p u f * ' 4 . 100 a . b y j n v n * o t u b o u b o f p v t ' p s x b s e voltage at 50a for unidirectional p o m z / p u f v ' 7 v 0 q f s b u j o h + v o d u j p o b o e 4 u p s b h f 5 f n q f s b u v s f 3 b o h f t + 5 4 5 ( u p c 5 z q j d b m 5 i f s n b m 3 f t j t u b o d f + v o d u j p o u p - f b e 3 v + - 20 ? $ 8 5 z q j d b m 5 i f s n b m 3 f t j t u b o d f + v o d u j p o to ambient 3 v + " 100 ? $ 8 notes: / p o s f q f u j u j w f d v s s f o u q v m t f q f s ' j h b o e e f s b u f e b c p w f 5 a = 25 0 $ q f s ' j h . p v o u f e p o d p q q f s q b e b s f b p g y w y n n u p f b d i u f s n j o b m . f b t v s f e p o n t t j o h m f i b m g t j o f x b w f p s f r v j w b m f o u t r v b s f x b w f g p s v o j e j s f d u j p o b m e f w j d f p o m z e v u z d z d m f q f s n j o v u f n b y j n v n 4. v ' 7 g p s 7 br _ < 50v and v ' <5.0v for v br _ > 51v. agency agency file number e128662 rohs 1ksmb series revision: december 01, 2010, 13:50 ?2010 littelfuse, inc. speci?cations are subject to change without notice. transient voltage suppression diodes 36 surface mount C 1000w > 1ksmb series 1ksmb series please refer to http://www.littelfuse.com/series/1ksmb.html for current information. electrical characteristics part number (uni) part number (bi) marking reverse stand off voltage v r (volts) breakdown voltage v br (volts) @ i t test current i t (ma) maximum clamping voltage v c @ i pp (v) maximum peak pulse current i pp (a) maximum reverse leakage i r @ v r (a) agency approval uni bi min max 1ksmb6.8a 1ksmb6.8ca a10a / " 5.80 6.45 7.14 10 10.5 y 1ksmb7.5a 1ksmb7.5ca a10b / # 6.40 7.88 10 88.5 400 y 1ksmb8.2a 1ksmb8.2ca a10c / $ 7.02 8.61 10 12.1 82.6 180 y , 4 . # " , 4 . # $ " " % / % 7.78 8.65 1 74.6 45 y 1ksmb10a 1ksmb10ca " & / & 8.55 10.50 1 14.5 8 y 1ksmb11a 1ksmb11ca " ' / ' 10.50 11.60 1 15.6 64.1 4 y 1ksmb12a 1ksmb12ca " ( / ( 10.20 11.40 12.60 1 16.7 1 y , 4 . # " , 4 . # $ " " ) / ) 11.10 12.40 1 18.2 1 y 1ksmb15a 1ksmb15ca " * / * 12.80 15.80 1 21.2 47.2 1 y 1ksmb16a 1ksmb16ca " + / + 15.20 16.80 1 22.5 44.4 1 y 1ksmb18a 1ksmb18ca a10k / , 17.10 1 25.5 1 y 1ksmb20a 1ksmb20ca " - / - 17.10 21.00 1 27.7 1 y 1ksmb22a 1ksmb22ca a10m / . 18.80 1 1 y 1ksmb24a 1ksmb24ca " / / / 20.50 22.80 25.20 1 1 y 1ksmb27a 1ksmb27ca " 0 / 0 25.70 28.40 1 26.7 1 y , 4 . # " , 4 . # $ " " 1 / 1 25.60 28.50 1 41.4 24.2 1 y , 4 . # " , 4 . # $ " a10q / 2 28.20 1 45.7 1 y , 4 . # " , 4 . # $ " " 3 / 3 1 20.0 1 y , 4 . # " , 4 . # $ " a10s / 4 41.00 1 18.6 1 y , 4 . # " , 4 . # $ " a10t / 5 45.20 1 1 y 1ksmb47a 1ksmb47ca a10u / 6 40.20 44.70 1 64.8 15.4 1 y 1ksmb51a 1ksmb51ca a10v / 7 48.50 1 70.1 1 y 1ksmb56a 1ksmb56ca " 8 / 8 47.80 58.80 1 77.0 1 y 1ksmb62a 1ksmb62ca a10x / 9 65.10 1 85.0 11.8 1 y 1ksmb68a 1ksmb68ca a10y / : 58.10 64.60 71.40 1 1 y 1ksmb75a 1ksmb75ca a10z / ; 64.10 78.80 1 1 y 1KSMB82A 1ksmb82ca b10a 0 " 70.10 86.10 1 8.8 1 y , 4 . # " , 4 . # $ " b10b 0 # 77.80 86.50 1 125.0 8.0 1 y 1ksmb100a 1ksmb100ca b10c 0 $ 85.50 105.00 1 1 y 1ksmb110a 1ksmb110ca # % 0 % 105.00 116.00 1 152.0 6.6 1 1ksmb120a 1ksmb120ca # & 0 & 102.00 114.00 126.00 1 165.0 6.1 1 , 4 . # " , 4 . # $ " # ' 0 ' 111.00 124.00 1 5.6 1 1ksmb150a 1ksmb150ca # ( 0 ( 128.00 158.00 1 207.0 4.8 1 1ksmb160a 1ksmb160ca # ) 0 ) 152.00 168.00 1 4.6 1 ' p s c j e j s f d u j p o b m u z q f i b w j o h 7 3 p g w p m u t b o e m f t t u i f * 3 limit is double. ' p s q b s u t x j u i p v u " u i f 7 # 3 is 10% revision: december 01, 2010, 13:50 ?2010 littelfuse, inc. speci?cations are subject to change without notice. transient voltage suppression diodes 37 surface mount C 1000w > 1ksmb series 1ksmb series please refer to http://www.littelfuse.com/series/1ksmb.html for current information. ratings and characteristic curves (t a =25c unless otherwise noted) 1 10 100 0.000001 0.00001 0.0001 0.001 t d -pulse width (sec.) p ppm -peak pulse power (kw) 0.2x0.2" (5.0x5.0mm) copper pad area i ppm - peak pulse current, % i rsm 0 0 50 100 150 1.0 2.0 3.0 4.0 t r =10sec peak value i ppm i ppm 2 t j =25c pulse width(td) is de?ned as the point where the peak current decays to 50% of i ppm 10/1000sec. waveform as de?ned by r.e.a t d t-time (ms) half value i ppm ( ) 0 20 40 60 80 100 0 25 50 75 100 125 150 175 peak pulse power (p pp ) or current (i pp ) derating in percentage % t a -ambient temperature (oc) 1 10 100 1000 10000 1.0 10.0 100.0 1000.0 cj (pf) tj=25c f=1.0mhz vsig=50mvp-p uni-directional v=0v bi-directional v=0v v br - reverse breakdown voltage (v) uni-directional @v r bi-directional @v r 0 1 2 3 4 5 6 0 25 50 75 100 125 150 175 t a - ambient temperature(oc) p m(av) , steady state po wer dissipation (w) figure 1 - peak pulse power rating curve figure 2 - pulse derating curve figure 3 - pulse waveform figure 4 - typical junction capacitance figure 5 - steady state power dissipation derating curve 0 20 40 60 80 100 120 1 10 100 number of cycles at 60 hz i fsm - peak forward surge current (a) figure 6 - maximum non-repetitive peak forward surge current uni-directional only revision: december 01, 2010, 13:50 ?2010 littelfuse, inc. speci?cations are subject to change without notice. transient voltage suppression diodes 38 surface mount C 1000w > 1ksmb series 1ksmb series please refer to http://www.littelfuse.com/series/1ksmb.html for current information. physical speci?cations weight p v o d f h s b n t case + & % & $ % 0 " " . p m e f e q m b t u j d c p e z over glass passivated junction polarity $ p m p s c b o e e f o p u f t d b u i p e f f y d f q u bidirectional. terminal . b u u f 5 j o q m b u f e m f b e t 4 p m e f s b c m f q f s + & 4 % # % environmental speci?cations temperature cycle + & 4 % " pressure cooker + & 4 % " high temp. storage + & 4 % " htrb + & 4 % " thermal shock + & 4 % " soldering parameters temperature (t ) time (t) t s(min) t s(max) t l t p t s preheat t l t p ramp-up critical zone t l to t p ramp-down t 25?c to peak 25?c re?ow condition - f b e o g s f f b t t f n c m z pre heat - temperature min (t s(min) ) 150c - temperature max (t s(max) ) 200c - time (min to max) (t s ) o t f d t average ramp up rate (liquidus temp (t l ) to peak ? $ t f d p o e n b y t s(max) to t l - ramp-up rate ? $ t f d p o e n b y re?ow - temperature (t l ) (liquidus) 217c - time (min to max) (t s ) o t f d p o e t peak temperature (t p ) 260 c time within 5 c of actual peak temperature (t p ) o t f d p o e t ramp-down rate ? $ t f d p o e n b y time 2 5 c to peak temperature (t p ) n j o v u f t . b y do not exceed 280c revision: december 01, 2010, 13:50 ?2010 littelfuse, inc. speci?cations are subject to change without notice. transient voltage suppression diodes 39 surface mount C 1000w > 1ksmb series 1ksmb series please refer to http://www.littelfuse.com/series/1ksmb.html for current information. dimensions inches millimeters min max min max a 0.077 0.086 2.200 b 0.160 0.180 4.060 4.570 c 0.155 % 0.084 2.440 & 0.060 0.760 1.520 ' 0.008 ( 0.205 0.220 5.210 ) 0.006 0.012 0.152 * 2.260 + 0.085 2.160 k 0.107 2.740 - 0.085 2.160 i l k j dimensions a d e g f h c b cathode band do-21 4 aa (smb j-bend) part numbering system packaging part number component package quantity packaging option packaging speci?cation 1ksmb y y y 9 9 % 0 " " 5 b q f 3 f f m o n n w u b q f & * " 4 5 % 3 4 part marking system voltage bi-directional 5 % voltage tolerance series 1ksmb xxx c a f xxx marking code littelfuse logo cathode band |
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