n i chia st s-da1- 1736a nichia corporation specifications for white led NSSW204BT pb-f r e e r e f l o w so lder ing a ppli c at io n r o hs co mp lia nt http://
n i chia st s-da1- 1736a 1 specifica t ions (1) ab sol u te maxi mum r a ti ngs item symbol absolute maximum rating unit f o rw ard current i f 25 ma pulse f o rw ard current i fp 80 ma r evers e v o lta g e v r 5 v po w e r d i s s i p a t i o n p d 82. 5 mw oper ati n g t e m p er ature t op r - 30~85 c stor age t e mper ature t st g - 40~100 c jun c t i on t e mp er ature t j 100 c * abs o l u te maxi mum r a t i ngs at t a =25c. * i fp co ndit io n s wi th pu ls e wi dth 1 0 m s an d dut y cycl e 10%. ( 2 ) in it ial e l ect r ical/ o pt i cal c h ar acterist ics ite m symbol condition typ unit f orward voltage v f i f =20ma 3.0 v lum inous flux v i f =20ma 6.9 lm lum inous intensity i v i f =20ma 2.25 cd x - i f =20ma 0.300 - chromaticit y c oordinate y - i f =20ma 0.295 - * char acteristics at t a =25c . * lum i nous f l ux v a l u e as p e r cie 127: 200 7 s t andard . * chrom a t i ci t y coordi nate s as pe r cie 1931 chrom a ti cit y chart .
n i chia st s-da1- 1736a 2 ranks item rank min max unit forward voltage - 2. 7 3. 3 v reverse current - - 5 0 a n w 725 7. 25 7.50 n w 700 7. 00 7.25 n w 675 6. 75 7.00 n w 650 6. 50 6.75 n w 625 6. 25 6.50 n w 600 6. 00 6.25 luminous flux n w 575 5. 75 6.00 lm color r a nks r a nk sa52 rank sa56 x 0. 2800 0. 2720 0. 2820 0. 2880 x 0. 2830 0. 2800 0. 2880 0.2910 y 0. 2480 0. 2580 0. 2720 0. 2620 y 0. 2440 0. 2480 0. 2620 0.2580 r a nk sa57 rank sa62 x 0. 2720 0. 2793 0. 2820 x 0. 2880 0. 2820 0.2910 0.2960 y 0. 2580 0. 2755 0. 2720 y 0. 2620 0. 2720 0.2870 0.2760 r a nk sa66 rank sa67 x 0. 2910 0. 2880 0. 2960 0. 2980 x 0. 2820 0. 2793 0. 2887 0.2910 y 0. 2580 0. 2620 0. 2760 0. 2710 y 0. 2720 0. 2755 0. 2916 0.2870 ra n k s b j 2 rank sbj6 x 0. 2960 0. 2910 0. 2990 0. 3040 x 0. 2980 0. 2960 0. 3040 0.3062 y 0. 2760 0. 2870 0. 3010 0. 2900 y 0. 2710 0. 2760 0. 2900 0.2853 ra n k s b j 7 rank sbk2 x 0. 2910 0. 2887 0. 2968 0. 2990 x 0. 3040 0. 2990 0. 3070 0.3120 y 0. 2870 0. 2916 0. 3058 0. 3010 y 0. 2900 0. 3010 0. 3150 0.3040 ra n k s b k 6 rank sbk7 x 0. 3062 0. 3040 0. 3120 0. 3142 x 0. 2990 0. 2968 0. 3048 0.3070 y 0. 2853 0. 2900 0. 3040 0. 2993 y 0. 3010 0. 3058 0. 3198 0.3150 ra n k s b m 2 rank sbm6 x 0. 3120 0. 3070 0. 3150 0. 3200 x 0. 3142 0. 3120 0. 3200 0.3222 y 0. 3040 0. 3150 0. 3290 0. 3180 y 0. 2993 0. 3040 0. 3180 0.3133 rank sbm7 x 0. 3070 0. 3048 0. 3128 0. 3150 y 0. 3150 0. 3198 0. 3338 0. 3290 * r a nking at t a =25c. * r e verse cur r ent a t v r =5v . * t o ler a nce of mea s ure m e n t s of the f o rward v o ltage is 0 .0 5 v . * t o ler a nce of mea s ure m e n t s of the l u m i n o us f l ux is 7 %. * t o l e r a nc e of m e as urem ents of t h e c h romat i c i t y coordinat e is 0. 005. * a shipm e n t shal l co ns is t of six adjac e n t c o lor r a nks. p l e a se co nsu l t wi t h n i ch ia for de tai l s . * a shipm en t shal l co ns is t o f led s in a co m b ina t io n o f the above r a nk s. the per c en t a ge o f each r a nk in the sh ip men t s h al l be deter m ined by ni ch ia.
n i chia st s-da1- 1736a 3 lum i no us f l ux r a nks by color r a nk ranking by luminous flux ranking by color coordinates nw575 nw600 nw625 nw650 nw675 nw700 nw725 sa52,sa56,sa57 sa62,sa66,sa67 sbj2,sbj6,sbj7 sbk2,sbk6,sb k7 sbm2 ,sb m 6 , s b m7
n i chia st s-da1- 1736a 4 chroma ticity d i agram sa 5 2 sa56 sa 5 7 sa 6 2 sa66 sa67 sb j 2 sbj6 sb j 7 sb k2 sbk6 sb k7 sb m 2 sb m 6 sb m 7 0.22 0.24 0.26 0.28 0.30 0.32 0.34 0 .24 0 .26 0.28 0.30 0 .32 0.34 0.36 x y
n i chia st s-da1- 1736a 5 outline dimensions sts- da7- 0441a n ssw204x no. ( g un it: mm) t h is p r o d uc t co m p li es wi th ro hs d i re cti v e. u ? ro hs ? m ?? * ( g un it : mm, to le r a n c e : 0 . 1 ) ? item ??`| package materials ??| encapsulating resin materials ?O| electrodes materials | weight description ????` heat-resistant polymer ?`? ? + w? silicone resin (with diffuser and phosphor) ~? + y? ag-plated copper alloy 0.0028g( t y p ) dimensions do not include mold flash or metal burr. ? ? ?? ? * ka 0.67 0. 3 0.65 (0.63) (0.06) 0.27 cathode anode 3.5 1 0.34 0.43 3. 8 (3 .6 ) (2 ) 0.40.08 (0.29) ca t h o d e ma r k
n i chia st s-da1- 1736a 6 soldering ? r e co mm end e d r e f l ow sold ering co ndi t io n ( lead -free sol d er) ? r e co mm end e d hand so lde r ing co nd it io n temperature 350c max soldering time 3sec max ? r e co mmend e d sold ering p a d p a ttern ( g unit: mm) 0.85 1.5 1.5 2.1 * thi s led is desi gned to be refl ow so l dered on to a pc b . if di p s olde r e d , n i c h i a c a nnot guar ant e e it s r e li abili t y . * r e fl ow so l d eri n g must not be perform ed more than twice. hand sol d ering mu st not b e performed more than o n ce. * a v oid r a pid cooling. r a mp down th e temp er ature gr adua lly from th e pe ak tem p er at ure. * n i t rogen ref l ow soldering is reco mmend e d. ai r fl ow sold ering cond it ion s can caus e op ti cal d e gr adat i o n, caused by h e at and / or atmospher e . * r e pairing should not be d o ne after th e l e ds ha v e been solder ed. wh en repair ing is u n a v oidable, a do uble-h e a d so lder ing ir o n sho u ld be u s ed. it shoul d b e confi r med b e forehand wh et h e r th e char ac te rist i cs of th e l ed s wi ll or w i ll not be da maged by repairing . * when sold ering, do not ap ply str e s s to t h e le d whi l e th e le d is ho t . 120sec max pre- hea t 180 t o 200c 260c max 10sec max 60sec max above 220c 1 t o 5c pe r se c
n i chia st s-da1- 1736a 7 t a pe and reel dimensions n x xx204x sts- da7- 0172 quant i t y p e r r e e l =6000pc s 1 ` ? 6000 * the t a pe packing me t h od compl i e s wi t h j i s c 0806 ( p a c k a g i n g of e l e c t r on i c c o mp on e n t s o n co n t i n u o u s ta p e s) . * j i s c 0 806 ? ` ? ?`? tape 1.7 5 0. 1 2 0 .0 5 4 0.1 5. 5 0 . 0 5 4 0. 1 12 +0. 3 -0 . 1 -0 1.5 +0 . 1 ( g un i t : mm) ? no. ` ? reel 15. 4 1 60 +1 -0 -0 180 +0 -3 2 1 0 . 8 1 3 0 . 2 ? label 13 +1 ? ` / ` trailer and leader ?? ` ?` e m bossed carri er tape ? ??` to p co ver ta p e f eed di re ct ion ` 400mm l eader witho u t to p co v er ta pe 4 0 0 m m mi n ? ` 160mm trail e r 1 60m m min( emp t y po c k e t s) led ? lo aded po ck ets 100 m m l e ader w i th t o p co ver t a pe 100 m m min( empt y pocke t ) 0.55 0 .1 0.2 0. 0 5 3.91 0.1 1.1 0.1 0.8 0.05 cathode mark
n i chia st s-da1- 1736a 8 p a ckaging - t a pe & reel nichia led sts-da7-0006b n x xxxxxx ? label la b e l no . reel ` ?` sea l mo isture-proo f bag ? ? for details, see "lot numbering scheme" in this document. * ? ? ???? ? ? if not provide d , it is n o t ind i cat e d on t h e l a b e l . ******* is t h e cus t o m e r p a r t n u mbe r . O ? ? ? ? * ******* ? the l a b e l does no t have the ran k fi el d fo r un - r a nked p r o d uc ts. * ? ? ? ? rohs nxxx xx xx xxxx led ******* nichia corporation 491 oka, kaminaka, anan, tokushima, japan typ e lot qty. ym xx xx -rrr pcs rohs nxx xxx xx xxxx led ** *** ** rr r pcs typ e ra nk qty. nichia corporation 491 oka, kaminaka, anan, tokushima, japan reels are shipped with desiccants in heat-sealed moisture-proof bags. ` ? ` de sic c an t s p r o d uc ts s h i p pe d o n tape a n d reel a r e pa ck ed in a m o i s tu re-proo f bag. t hey a r e shi p ped i n c a rdbo ard bo x e s to pro t e c t them fro m ex te rnal f o rce s during trans p o r ta tio n. ? \ H? y ? B ? ? y * ?` ? ? ? y ? ? * ? Q H n ? u? p ? ? ? ? * * u ? ?` ? n ? g o ?` y ? usin g an orig inal packagi n g mat e rial or eq uivale nt in t r ans i t is r e co m m en de d. d o no t ex po se to wa ter, the bo x is no t water-resi s t ant. do not drop o r sho c k the box. i t may dama g e th e pr o d ucts. m o is tu re -pr o o f ba gs a r e pa ck e d in c a r d bo a r d bo x e s w i th c o r r u ga ted pa rti t i o n s . ? K ? ` ?
n i chia st s-da1- 1736a 9 l o t numbering scheme lot numb er is presented by using t h e foll owing al phanum e r i c c o de . ymxxxx - r r r y - y e a r year y 2009 9 2010 a 2011 b 2012 c 2013 d 2014 e m - m o n t h mont h m month m 1 1 7 7 2 2 8 8 3 3 9 9 4 4 10 a 5 5 11 b 6 6 12 c xxxx - n i c hi a's product n u mber rrr -r ank i ng by color c oordi nat e s , r a nking by lu m i nous flux
n i chia st s-da1- 1736a 10 dera ting characteristics s t s -d a 7- 070 0a no . n s s w 20 4x de r a t i n g 1 0 10 20 30 40 50 0 2 04 06 0 8 0 1 0 0 1 2 0 (4 3 , 25.0) ( 8 5 , 6.50) du t y 1 10 10 0 1 1 0 100 25 80 S all owa bl e f orwar d c urr ent ( m a) ? - S am b i e n t t e mp e r a t u r e v s a l lo wa ble f o r w a r d c u r r e n t S allowable forward current(ma) ? a m b i en t t e m p er atu r e( c) ? ` ` d u ty r a ti o ( % ) ` ` - S d u ty r a ti o v s a l l o w a bl e f o r w a r d c u r r e n t t a = 25 c
n i chia st s-da1- 1736a 11 optical characteristics n s s w 20 4b n o . s t s -d a 7 -09 4 2 spectrum 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 3 50 4 00 4 5 0 50 0 55 0 60 0 65 0 7 0 0 7 5 0 r e la t i v e i l lu mi n a n c e ( a . u . ) dire c t iv i t y 1 90 80 70 60 50 40 30 20 10 0 -1 0 -2 0 -3 0 -4 0 -5 0 -6 0 -7 0 -8 0 -9 0 k sp e c t r um k r e l a t i ve e m i s s i o n i n t e n s i t y( a . u . ) L wa v e l e n g th ( n m ) ? d ir e c t iv it y ? r a di a t i o n a n gl e 10 . 5 0 0 . 5 1 20ma i f = t a =25 c * ?? a l l ch a r act e r i st i c s sh ow n a r e f o r r e f e re n c e on l y a n d ar e n o t g u ara n t e e d . 20ma i fp = t a =2 5 c x-x y-y y y xx
n i chia st s-da1- 1736a 12 for w a r d cur r e n t char acteris t ics / tempera t ure characteristics n s s w 20 4b s t s -d a 7-09 43 no . tavf 2. 0 2. 5 3. 0 3. 5 4. 0 4. 5 - 60 - 40 - 20 0 2 0 4 0 60 80 1 00 12 0 ta iv 0. 6 0. 8 1. 0 1. 2 1. 4 - 60 - 40 - 2 0 0 2 0 4 0 60 80 1 00 12 0 vf i f 1 10 10 0 2. 0 2. 5 3. 0 3. 5 4 . 0 4 . 5 80 20 r e l a t i v e l um i n o us f l ux ( a . u. ) ? - am b i e n t te m p e r a t u r e v s r e l a t i v e l u m i no us f l u x fo r w a r d c u rren t( m a) ifiv 0.0 0.5 1.0 1.5 2. 0 2. 5 3. 0 3. 5 4. 0 0 2 04 06 08 0 1 0 0 r e l a t i v e l um i no u s f l ux ( a . u. ) - fo r w a r d c u r r e n t v s r e la t i v e l u m i no us f l u x f o r w a r d current( m a ) R- fo r w a r d v o l t a g e v s fo r w a r d c u r r e n t ? - R amb i e n t t e mp e r a t u r e v s fo r w a r d v o l t a g e ?R forward volta g e( v ) R f o r w ar d v o l t age(v) ?? ambient tem p eratu r e ( c ) ?? a m b i en t t e m p er a t ure(c) t a =2 5 c * ?? a l l c h ar ac t e r i s t i c s s h o w n a r e f o r r e f e r e n c e o n l y a n d a r e n o t g u ar a n t eed . t a =25c i fp = 20 ma i fp = 2 0 ma i fp = 6 0 m a i fp = 5 ma
n i chia st s-da1- 1736a 13 for w a r d cur r e n t char acteris t ics / tempera t ure characteristics no . nssw204b sts-da7-0944 ta x y 0.28 0. 29 0. 30 0. 31 0. 32 0. 2 8 0. 29 0. 30 0. 31 0. 32 -30 c 0c 25c 50c 85 c x if x y 0.28 0. 29 0. 30 0. 31 0. 32 0. 28 0. 29 0 . 30 0. 31 0. 32 1ma 5ma 20ma 2 5m a 8 0m a x y y 20 m a i fp = ? - ? ambie nt te mperature vs chromaticity c oordinate - ? fo r w a r d c u r r e n t vs c h r o m a ti c i ty c o o r d i n a te t a =2 5 c * ? a l l c h a r ac t e r i st i c s sh ow n a r e f o r r e f e re n c e on l y a n d a r e n o t g u aran t e ed .
n i chia st s-da1- 1736a 14 reliability (1) t e s t s a n d r e sults te s t reference standard test conditions te s t duration failure criteria # units failed/tested r e si st anc e t o soldering heat (reflow soldering) j e it a ed- 4701 300 30 1 t sl d =260c, 10 s e c, 2re f l o w s , pre c ondit i o n : 3 0 c, 70%r h , 168hr #1 0/50 sol derability (r eflow soldering) je it a ed- 4701 303 30 3a t sl d =2455c, 5s e c , le ad- f r e e sold e r ( s n- 3. 0ag - 0.5cu) #2 0/50 t e mperature cycle jeit a ed- 4701 100 10 5 - 40c( 30mi n )~25c( 5mi n )~ 100c( 30m i n )~25c( 5mi n ) 100c y c l e s #1 0/50 mois tur e resistance (cycl i c ) jeita ed- 4701 200 20 3 25c~65c~-10c, 90%r h , 24hr per cy cle 10c y c l e s #1 0/50 high t e mp er at ure stor age j e ita ed-4701 200 20 1 t a =100c 1000hours #1 0/ 50 t e mper a ture humidity stor age j e ita ed-4701 100 10 3 t a =60c, r h = 90% 1000hours #1 0/ 50 low t e mp er ature stor age j e ita ed-4701 200 20 2 t a =- 40c 1000hours #1 0/ 50 r oom t e mper ature oper at ing li f e condition 1 t a =25c, i f =20m a 1000hours #1 0/ 50 r oom t e mper ature oper at ing li f e condition 2 t a =25c, i f =25m a 500hours #1 0/ 50 high t e mp er at ure oper at ing li f e t a =85c, i f =5m a 1000hours #1 0/ 50 t e mper a ture humidity oper at ing li f e 60c, r h =90 % , i f =15m a 500hours #1 0/ 50 low t e mp er ature oper at ing li f e t a =-30c, i f = 20m a 1000hours #1 0/ 50 vibr ation j e it a ed- 4701 400 40 3 200m / s 2 , 100 ~2000~100hz , 4 c ycle s, 4 m i n , each x, y , z 48m i n ut es #1 0/ 50 board ben d in g jeita ed-4702b 003 1bend to a def l ection of 3mm for 51sec #1 0/50 no tes: measuremen ts ar e perf ormed after allowi ng the l e ds to return to ro o m te mp er at ure. ( 2 ) f a ilu re c r it eria criteria # ite m s conditions failure criteria f o rw ard v o ltag e(v f ) i f =20ma >u.s.l.1.1 lum i no us f l ux ( v ) i f =20ma u .s.l .2 . 0 #2 so lder abi lity - less than 95% solder coverage u . s.l . : up pe r specif ica t io n lim i t l.s.l. : lo wer spe cif ica t io n li mi t
n i chia st s-da1- 1736a 15 ca u t ion s (1) stor age conditions temperature humidity time before opening aluminum bag 30c 90%rh within 1 year from delivery date stor age after opening aluminum bag 30c 70%rh 168hours baking 655c - 24hours product c o m p li es wit h j e d e c msl 3 or e q uiv a le nt . see ipc/j e d e c std - 020 for m o i s t u re- s e n s i t i v i t y det a il s. absorbed moi s ture i n led packages can v apori ze and expand during sol d ering, w h ich can ca use i n terface del a mi na ti on and result in optical p e rforman ce degr ad ation . prod ucts are pack ed in m o is ture - p roof al um inum bags to min i m i ze mo i s tur e abso rptio n d u ri ng t r anspo r ta tio n a n d sto r age . inc l ude d s ilic a ge l de si cc ant s change from bl ue t o re d i f m o is ture had pe net r at e d bags. after opening the moisture-proof alu m inu m bag, the pro d ucts should g o through th e solder ing pro c ess withi n th e r a nge of th e co ndi t ion s s t at ed above. un us e d rema in ing le ds shou ld be s t ored wi th si li c a gel de si cca nt s in a herm et ically sea l e d co nta i ner , preferab l y the ori g i n al mo i s ture-pr oof bags for stor age. after t h e ?p eriod aft e r op eni n g? s t or age ti me h a s be en exceed ed or s i l i ca ge l de si cca nts ar e no lo ng er blu e , the products shou ld be b a k e d. baking shoul d onl y be d o ne once. customer i s advi sed to k e ep the l e ds in a n ai rti g ht co nt ai ner w h en not i n use. exposure to a corrosi v e en v i ronment may cause t h e pla t ed me ta l part s o f the p r o d uct to tarn i s h, w h i c h co ul d adverse l y affect sold eri n g a n d opti ca l character i s t i cs . it i s also recommended to return th e le ds to th e o r ig i nal mo i s tur e p r o o f bags and resea l . after assembl y and dur i ng use, si l v er p l at i n g can b e affe cted by t h e corrosive ga ses e m i t t e d by com p onen ts an d m a ter i al s in clo s e prox im i t y o f the l e d s wi th in an end pro d u c t , a nd th e gas e s e nter i ng in to th e pro d uc t fro m the ex ter nal a t mo spher e . the above sho u ld b e take n into co ns ider a t io n w h e n des i gning . r e sin mat e r i al s, in part i c u l ar , may co nta i n sub s ta nc e s whi c h ca n affe ct s i lver pla t i n g, su ch a s halo gen. do not use s u lfur- c on tainin g ma terials in c o mm erc i al product s . som e m a ter i al s, su ch a s s e al s and adh e sives , may co nta i n su lfur . the extre m ely corroded or conta m inat ed plat ing of le d s mi g h t cause a n open ci rcuit. si li co ne rubb er i s recommend e d as a mater i al for sea l s. bear i n mi nd , the use of si li co ne s may l e ad to si li cone con t a m i n at ion of e l e c tri c a l con t ac ts inside th e p r o d uct s , caus e d by lo w mol e c u lar we igh t vo l a ti le si lox a ne . t o prevent water cond en s a tion , p l eas e avoid large te m p er at ure a n d h u midit y fluctua t ion s for the stor age conditi o ns. (2) di recti o ns for use when desig n i n g a ci r c ui t, the curre n t thro ugh ea ch le d mu st no t exc e ed th e abso lu t e maxi mu m r a tin g . oper ati n g a t a co nstant current p e r led is reco mmen ded. in case of o p er ating at a c o nsta nt vo ltag e, c i rcu i t b is r ecom m ende d . if the led s are oper ated w i th con s ta nt vo ltag e us ing c i r c ui t a, th e curr ent thro ug h t h e le ds may v a ry due to t he v a riat io n in f o r w ar d v o ltage ch ar acteristics of t h e leds. (a) ... (b) .. . leds sho u l d be oper ated i n forw ard bi as. d r i v i n g ci rcuits must no t subj ect led s to either forw ard or rev e rse v o ltag e whil e off . continuo us reverse voltag e can caus e m i gr ation an d le d dam a ge. f o r s t abi l i z ing t h e led c h ar ac t e r i st ic s, it is re c o m m end e d to oper ate a t greater than 1 0 % nom i na l cu rrent . care must b e tak e n to ensure th at t h e re verse vol t age wil l no t exce ed the ab sol u t e maxi mu m r a t i ng when us ing the l e d s wi th matr ix drive . f o r outdoor use, necessary mea s ures sho u l d be tak e n to prevent wa ter , mo i s tur e and sal t air da mag e .
n i chia st s-da1- 1736a 16 (3) handl i n g precau ti ons do not hand le le d s with b a re hand s, it ma y con t a m in ate the l e d surface and affect opt i ca l char a c ter i s t i c s . in the worst case , ca tas t ro phic fa il ure fro m exce ss pr es su re throug h w i re-bond break s and packag e damage ma y r e su lt. when ha ndling t h e produ c t with t w ee z e r s , be ca reful not to appl y ex cess ive forc e to the r e s i n. otherwis e, the re si n can be cu t, ch ipped, delamina te or deform ed , causing w i re-bo n d breaks an d cata stroph ic fa ilures. dropping th e product ma y cause damage. do no t sta c k asse mb led p c bs to g e t h er . f a il ure to co mp l y can cau s e th e res i n po rt io n o f the pro d u c t to be c u t , ch ip ped, delaminated and/or defor m ed . it ma y cause w i re to break, lead i n g to catastrophi c f a i l ures. (4) desi gn consi d er ati o n pcb warpag e after mo un ti ng th e pro d uc t s o n to a pc b c a n cau s e the p a ck age to br ea k . the led s h ould be p l ac ed in a way to m i ni mize t h e s t re ss on the l ed s due to pc b bo w and tw is t. the positio n and orienta t io n of the leds affect how m u ch me cha n i c al stre ss i s exerte d on the leds pl aced near the score li nes. the led s h ould be p l ac ed in a way to m i ni mize t h e s t re ss on the l ed s due to board f l ex ing. board separ a ti on must b e performed us in g spec ia l j i g s , no t u s in g hand s. (5) el ectrostati c di scha r ge (es d ) the produ c t s are se ns it ive to sta t ic e l e c tr i c i t y or surg e voltag e. es d ca n damag e a di e and i t s re l i ab il i t y . when handling t h e produ c ts , th e followin g mea s ure s ag ains t e l e c tro s t a ti c di sch arge are stron g ly re com m e n ded : e l i m i n a t i n g t h e c h a r g e grounded wri s t s t r ap , esd foot w e ar , clot hes, a n d fl oo rs grounded workstat ion equipm en t and tools esd tabl e/s h e l f ma t ma de of condu c t i ve ma ter i al s pr o p er gr o u nding is r e qu ir ed f o r all d e v i c e s, equ i pm en t, and mac h i n er y used in pr o d uct a s s e mb ly . surge prot ecti on should be consi d ered wh en desig n ing of commercia l products. if tools or e q uip m e n t co nt ain i n s u la ti ng mat e ria l s su ch as gla ss or pla s t i c , t h e fol l o wi ng m e as u r es agai n st el ec t r os t a ti c di sch arge are stron g ly re com m e n ded : diss ipat i n g sta t ic c h arg e wi th co nduc t i ve mat e ria l s preventi ng charg e gen e r a tio n w i th m o is ture n e u t r a l i z i n g t h e c h a r g e w i t h i o n i z e r s th e cu st ome r i s advi se d to c h ec k if the leds are da ma ged by esd when performing the char acter i stics i n sp ecti on of t h e led s i n the app l icati o n. d amage ca n be detected wi th a forw ard v o l t ag e mea s urement or a li g h t - up test a t l o w current ( 1m a ) . esd damag e d led s may h a ve an incr e a s e d leak ag e cur r ent , cur r e nt f l o w at a lo w vo ltage o r no lo nge r ill um ina t e at a lo w cur r e n t . f a ilur e c r iter ia : v f <2.0 v at i f =0.5ma (6) t h ermal manageme nt proper th er mal manag e m e nt is a n i m po r t an t when designing prod ucts with le ds . le d di e t e mp er at ure i s affec t ed by pcb ther mal r e sistan ce and le d spa c ing on th e boar d. pl eas e de sig n produc ts in a way that t he l e d d i e t e mperature does not exceed th e max i mu m j unc t i on t e mper a t ure ( t j ). d r i v e current should be d e ter m i n ed for t h e s u rround ing ambi en t te mp er ature (t a ) to dis s ipa t e the h e at fro m the pr o d uct . (7) cl eani ng if r e quir ed, iso p r o py l a l co h o l (ip a ) s h o u l d be use d . o t he r solven ts may caus e pre m at ure fai l ure to t h e le ds due to the d a mage to th e r e si n port ion . t h e effe ct s of s u ch solve n t s s h ould b e v e ri f i ed pri o r to use. in additio n , the use of c f c s su ch as freo n is heavi l y re gula ted . ultr ason ic cleaning is no t recom m e nde d s i nc e i t may have adverse eff e ct s on t he l e ds depending on the ultr ason ic power a n d h o w led is assembled. if ultr asonic clea ning m u s t be use d , t h e c u sto m er is adv i se d to mak e sure the led s w i ll not b e da ma ged pri o r to cl eani ng .
n i chia st s-da1- 1736a 17 (8) ey e saf e t y in 2006, t h e inte rnat i o nal el ec t r i c al comm is si on (iec ) publi s he d iec 62471: 200 6 phot obi o l ogic a l s a fet y of l a m p s and lamp sy ste m s, wh ic h a dded le ds in it s scop e . on t h e ot her hand, t h e iec 60825- 1: 20 07 l a s e r s a f e t y s t andard r e mo v e d leds from it s sc ope. however , pl ease b e advi se d that som e co untr i es and regions ha v e ado p ted stand a rds bas e d on t h e iec l a s e r safe t y s t andard iec 60825- 1: 20 112001, whi c h s t ill i n cl udes leds i n i t s sc op e . most of n i chi a 's l e ds ca n be cl a s si fied as bel o ng ing in to either the ex empt group or risk group 1. hi gh- p owe r leds , t h at emit li gh t con t aining blu e w a vele ngth s, ma y be cla s s i fi ed as ri sk group 2 . please pro c eed wi th cau t io n whe n view in g direc t ly an y leds dri v en at hi gh current, o r vi ewing led s with opt i ca l ins t ru me nt s w h ic h may gr eat l y in crea se t h e damage s to your eyes . view ing a f l ashi ng l i gh t m a y caus e eye d i s c omfort . when in corpor ating the l e d i n to y o ur product, pl ease be careful to a v oi d adv e rse eff e cts on the hu man body caused by ligh t stimu l a t ion. (9) ot hers the le d s d e scr ibed in th is brochure ar e i n te nded to be used for ordina ry el ectroni c equi p m en t (such as offi ce eq uipment, commun i cat i ons equ i pm en t, mea s ure m e n t in str um e n t s and hou s eho l d applia nc es ). co nsult n i c h ia' s sal e s staf f in adv a n c e f o r inf o r m a t io n o n th e appl ica t i o ns i n wh ich e x ceptio na l qua l it y and r eliab i l i t y ar e r eq u ir ed , par t icu l ar ly when the f a il ure o r malf u n c t io n o f the le ds m a y direc t ly j eo p ardize lif e o r heal th (such as for ai rplanes, a e rospa c e, sub m ersi b l e repeaters, nucl e ar reactor co nt r o l sy s t e m , a u t o mobi le s, tr affi c contr o l equi p m ent, li fe su pport s y stem s an d s a fet y de vi ce s). the c u s t om er sha ll not reverse eng i ne er by disas s e m bl i n g or analys is of the le d s wit h out ha v i ng pr ior writt e n co ns ent from nich i a . w h en def e c t ive le ds are fou n d, t h e c u s t om er sh a ll inf o r m ni ch ia dir ec t ly bef o r e di sas s e m bl ing o r ana l y s is . both th e cu sto m ers a n d n i c hia w i ll agr ee on offici al s p ec ifi c at io ns of su pplied produc ts before a customer 's vo lume producti on . specificatio ns and app e ar ance subject to chang e for impro v ement w i tho u t noti ce.
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