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| ?2011 littelfuse, inc. gas discharge tube (gdt) products 63 revised: september 26, 2011 speci?cations are subject to change without notice. please refer to www.littelfuse.com for current information. customer should verify actual device performance in their speci?c applications. sg series sg series description littelfuse sg series gdt offers high surge ratings in a miniature package. its designed for surface mounting on pcb with small size 4.5x3.2x2.7mm. low insertion loss is perfectly suited to broadband equipment applications. the capacitance does not vary with voltage, and will not cause operational problems with adsl2+, where capacitance variation across tip and ring is undesirable. these devices are extremely robust and are able to divert a 1000a pulse without destruction. features t 3 p ) 4 d p n q m j b o u b o e lead-free t ( ) [ x p s l j o h g s f r v f o d z t & y d f m m f o u t u b c j m j u z p o multiple pulse duty cycle t & y d f m m f o u s f t q p o t f u p fast rising transients. t 6 m u s b - p x * o t f s u j p o - p t t t , " t v s h f d b q b c j m j u z tested with 8/20s q v m t f b t e f m o f e c z * & $ 61000-4-5 t 6 m u s b t n b m m e f w j d f t offered in a variety of mounting lead forms t / p o 3 b e j p b d u j w f t - p x d b q b d j u b o d f q ' t 7 p m u b h f 3 b o h f t 7 u p 7 t 6 - s f d p h o j [ f e t $ p o g p s n t u p * 5 6 5 , * & $ t 4 r v b s f 0 v u m j o f applications sg series 2 electrode gdt graphical symbol agency approvals agency agency file number e128662 t communication equipment t $ " 5 7 f r v j q n f o u t 5 f t u f r v j q n f o u t % b u b m j o f t t 1 p x f s t v q q m j f t t 5 f m f d p n 4 - * $ protection t # s p b e c b o e f r v j q n f o u t " % 4 - f r v j q n f o u including adsl2+ t 9 % 4 - f r v j q n f o u t 4 b u f m m j u f b o e $ " 5 7 equipment t ( f o f s b m u f m f d p n equipment ?2011 littelfuse, inc. gas discharge tube (gdt) products 64 revised: september 26, 2011 speci?cations are subject to change without notice. please refer to www.littelfuse.com for current information. customer should verify actual device performance in their speci?c applications. sg series sg series part number device speci?cations b u ? $ life ratings dc breakdown in volts ! 7 t impulse breakdown in volts ! 7 ? t impulse breakdown in volts ! , w ? t f d insulation resistance capaci- tance ! . ) [ arc voltage ! " glow to arc transition current glow voltage nominal ac discharge current y ! ) [ nominal impulse discharge current y ! ? t nominal impulse discharge current ? t d z d m f t min typ max max min max SG75 52 75 98 500 650 ! * (at 50vdc) <1 pf ~10 v ~1.0 a ~60 v 2 a 2ka 10 a sg90 63 90 117 500 600 sg150 105 150 195 500 600 sg230 172 230 288 650 800 1ka sg300 225 300 375 700 850 ~12 v ~0.5 a ~90 v sg300q 210 300 390 580 650 ~20 v ~0.8 a ~140 v na* sg350 263 350 437 750 900 <0.8 pf ~12 v ~0.5 a ~90 v 2 a sg350q 263 350 437 600 700 ~140 v na* sg400 300 400 500 800 950 ~90 v 2 a sg420 315 420 525 800 1000 <1 pf ~10 v ~1.0 a ~60 v 2 a sg420q 315 420 525 650 750 ~20 v ~140 v na* 4 q f d j g j d b j p o j t o p u b q q m j d b c m f g p s r v j d l s f t q p o t f 4 ( y y y q w f s t j p o p g q s p e v d u product characteristics materials % f w j d f 5 j o 1 m b u f e ? . j d s p o t construction ceramic insulator. storage and operational temperature u p ? $ electrical characteristics voltage (v) time (ns) 0 200 400 600 800 1000 1200 max dynamic breakover voltage hold-over voltage on-state voltage voltage vs. time characteristic ! ( ) [ e # ! ( ) [ e # ! ( ) [ e # ! ( ) [ e # ! ( ) [ e # ! ( ) [ e # ! ( ) [ e # ! ( ) [ e # typical insertion loss ?2011 littelfuse, inc. gas discharge tube (gdt) products 65 revised: september 26, 2011 speci?cations are subject to change without notice. please refer to www.littelfuse.com for current information. customer should verify actual device performance in their speci?c applications. sg series sg series device dimensions 4.5 +/- 0.3 2.7 +/- 0.3 0.5 +/- 0.1 5.2 2.8 3.2 +/- 0.3 recommended soldering pad layout 4 dimensions in millimeters. re?ow condition 1 c o ' s f f b t t f n c m z pre heat - temperature min (t s(min) ) ? $ - temperature max (t s(max) ) ? $ - time (min to max) (t s ) 60 C 180 secs 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) ? $ - temperature (t l ) 60 C 150 seconds peak temperature (t p ) 260 +0/-5 ? $ time within 5c of actual peak temperature (t p ) 10 C 30 seconds ramp-down rate ? $ t f d p o e n b y time 25c to peak temperature (t p ) n j o v u f t . b y do not exceed ? $ soldering parameters - re?ow soldering (surface mount devices) time temperature t p t l t s(max) t s(min) 25 t p t l t s time to peak temperature (t 25oc to peak) ramp-down ramp-up preheat critical zone t l to t p tape dimenstions 5 b q f t j [ f j t b d d p s e j o h u p * & $ 8 3 1.5 3.65 4.9 12 part numbering system and ordering information sg xxx q breakdown voltage 7 5 = 7 5 v 90 = 90v 1 5 0 = 1 5 0v 230 = 230v 300 = 300v 3 5 0 = 3 5 0v 4 00 = 4 00v 4 20 = 4 20v series square gdt device option code (blank) = standard device q = quick response version (300v, 3 5 0v and 420v only) packaging part number and device type quantity and packaging description sgxxx surface mount 2000pcs/reel in tape and reel |
Price & Availability of SG75
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