n i chia st s-da1- 2412 nichia corporation specifications for white led NSSW088AT pb-f r e e r e f l o w so lder ing a ppli c at io n b u ilt -i n e s d p r ot ec ti on d e vi c e r o hs co mp lia nt http://
n i chia st s-da1- 2412 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 35 ma pulse f o rw ard current i fp 100 ma al l o w a b l e r e v e rse current i r 85 ma po w e r d i s s i p a t i o n p d 123 mw oper ati n g t e m p er ature t op r - 40~110 c stor age t e mper ature t st g - 40~110 c jun c t i on t e mp er ature t j 125 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 un it f o rw ard v o ltag e v f i f =20m a 3. 2 v luminous intensity (chromaticity coordinate1) i v i f =20m a 1. 6 c d x - i f =20m a 0. 31 - chromaticity coordinate1 y - i f =20m a 0. 32 - luminous intensity (chromaticity coordinate2) i v i f =20m a 1. 5 c d x - i f =20m a 0. 28 - chromaticity coordinate2 y - i f =20m a 0. 27 - th e r m a l r e si stan c e r js - 190 c/w th e r m a l r e si stan c e r ja - 380 c/w * char acteristics at t a =25c . * chrom a t i ci t y coordi nate s as pe r cie 1931 chrom a ti cit y chart . * r js is th ermal r e si sta n ce from juncti o n to t s measur in g point. * r ja is ther mal r e si sta n ce fro m junc tio n to amb i e n t t e st board: fr4 b o ard thi c kne s s = 1 . 6 m m, copp er layer t h i c kn ess=3 5 m .
n i chia st s-da1- 2412 2 ranks item rank min max unit forward voltage - 2. 8 3. 5 v w2 2. 40 2.88 w1 2. 00 2.40 v2 1. 72 2.00 v1 1. 44 1.72 u 2 1. 20 1. 44 luminous intensity u 1 1. 00 1. 20 cd color ra nks ra n k a 3 ran k b 5 x 0. 280 0. 264 0. 287 0.296 x 0. 296 0. 287 0. 307 0. 311 y 0. 248 0. 267 0. 295 0.276 y 0. 276 0. 295 0. 315 0. 294 ran k b 6 ran k b 7 x 0. 311 0. 307 0. 330 0.330 x 0. 291 0. 279 0. 302 0. 308 y 0. 294 0. 315 0. 339 0.318 y 0. 257 0. 276 0. 302 0. 279 ran k b 8 x 0. 308 0. 302 0. 319 0. 321 y 0. 279 0. 302 0. 318 0. 294 * r a nking at t a =25c. * t o ler a nce of mea s ure m e n t s of the f o rward v o ltage is 3 %. * t o ler a nce of mea s ure m e n t s of the l u m i n o us in ten s it y is 10%. * t o ler a nce of mea s ure m e n t s of the c h romaticit y coordinate is 0.01. * 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- 2412 3 chroma ticity d i agram a3 b5 b6 b7 b8 0.2 0 0.2 5 0.3 0 0.3 5 0.4 0 0.4 5 0 . 20 0 . 25 0.3 0 0.3 5 0 . 40 0 . 45 x y
n i chia st s-da1- 2412 4 outline dimensions sts- da7- 2643 nssx088 a ? 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 ) ka o pr ot e c t i on d e v i c e dimensions do not include mold flash or metal burr. ? ? ? ? * 0.75 1.4 ( 0 .75) ca t h o d e m a r k 3.5 3.2 (2 . 8 ) (0.95) 1.2 cathode anode 0.65 0. 6 5 (0. 1 ) 0.3 ? 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. 010g( t y p )
n i chia st s-da1- 2412 5 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) 4 9.8 1.4 4 4 1.4 0.9 blank box e s : sold er res i s t open ing , s h aded area s: f ootprin t * 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 , ni 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- 2412 6 t a pe and reel dimensions n x xx088x sts- da7- 2677 1 ` ? 3000 * 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 ) r e e l siz e : 3000pc s 1 0 . 1 cathode mark 0. 25 0.05 3.7 0.1 1.35 0. 1 1.55 0.1
n i chia st s-da1- 2412 7 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- 2412 8 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 oordinat e s , r a nking by lu m i nous in te ns it y
n i chia st s-da1- 2412 9 dera ting characteristics s t s - d a 7-27 06 no . n s s x 08 8a de r a t i n g 1 0 10 20 30 40 50 0 2 04 0 6 08 0 1 0 0 1 2 0 ( 68 , 35. 0) ( 110 , 10. 0) du t y 10 100 1 000 11 0 1 0 0 35 S a ll owa bl e forwar d c urr ent ( ma ) ? - S am b i e n t t e m p e r a t u r e v s a l lo w a 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 lo w a ble f o r w a r d c u r r e n t t a = 25c
n i chia st s-da1- 2412 10 optical characteristics n s s w 08 8a n o . s t s -d a 7 -27 1 0 sp e c tr u m 0.0 0. 2 0. 4 0. 6 0. 8 1. 0 350 4 0 0 4 5 0 500 55 0 6 00 650 70 0 7 5 0 r e l a t i v e l u m i n o s i t y ( a .u .) di r e c t i v 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 la t i v e e m is s i o n i n t e n s i t y ( a . u . ) L wave l e n g th ( n m ) ? d ir e c t iv it y ? ra d i a t i o n a n g l e 10 . 5 0 0 . 5 1 20m a i f = t a =25c * ?? a l l ch a r act e r i st i c s sh ow n a r e for r e fe re n c e on l y a n d ar e n o t g u ara n t e e d . 20m a i fp = t a =2 5 c
n i chia st s-da1- 2412 11 for w a r d cur r e n t char acteris t ics / tempera t ure characteristics n s s w 08 8a s t s - d a 7-27 11 no . tavf 2. 0 2. 5 3. 0 3. 5 4. 0 4. 5 5. 0 - 60 - 40 - 2 0 0 2 0 4 0 60 80 10 0 120 ta i v 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 . 02 . 5 3 . 03 . 5 4 . 0 4 . 55 . 0 20 re l a t i v e l u mi n o si t y ( a . u . ) ? - am b i e n t te m p e r a t u r e v s r e l a ti v e l u m i n o s i ty f o r w a r d cu rre n t ( m a ) ifiv 0.0 0. 5 1. 0 1. 5 2. 0 2. 5 3. 0 3. 5 4. 0 0 2 0 40 60 8 0 100 12 0 r e l a ti v e l u m i n o s i ty ( a . u . ) - fo r w a r d c u r r e n t v s r e l a ti v e lu m i n o s i ty forwar d c u rre n t ( 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 a m b i en t t e m p e r a t u r e v s fo r w a r d v o l t a g e R forwar d v o l t a g e ( v ) ?R f o r w a rd voltage(v) ?? ambient t em p e r atu r e( c) ?? am b i e n t t e m p erature ( 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 = 20m a i fp = 20 m a i fp = 60ma i fp = 5ma
n i chia st s-da1- 2412 12 for w a r d cur r e n t char acteris t ics / tempera t ure characteristics no . nssw088a sts-da7-2712 taxy 0. 30 0. 31 0. 32 0. 33 0. 34 0. 35 0. 2 8 0. 2 9 0 . 3 0 0. 31 0 . 32 0. 33 -4 0c 0c 25 c 50 c 110 c x ifxy 0. 30 0. 31 0. 32 0. 33 0. 34 0. 35 0. 28 0. 29 0 . 3 0 0. 31 0 . 3 2 0. 33 1ma 5ma 20ma 35ma 10 0m a x y y 20 m a i fp = ? - ? ambient temperature vs chromaticity coordinate - ? fo r w a r d c u r r e n t vs ch 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 ar an t e ed .
n i chia st s-da1- 2412 13 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 0/22 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) #3 0/22 ther mal s hock jeit a ed- 4701 300 30 7 - 40c t o 110c, 1mi n dwell , 1 0 s ec tr an sfer , pre c ondit i o n : 3 0 c, 70%r h , 168hr 100c y c l e s #1 0/ 100 t e mperature cycle jeit a ed- 4701 100 10 5 - 40c( 30mi n )~25c( 5mi n )~ 110c( 30m i n )~25c( 5mi n ) 100c y c l e s #1 0/ 100 mois tur e resistance (cycl i c) jeit a ed- 4701 200 20 3 25c~65c~-10c, 90%r h , 24hr per cy cle 10c y c l e s #1 0/ 100 high t e mperature stor age jeit a ed- 4701 200 20 1 t a =110c 1000hours #1 0/ 100 t e mperature humidity stor age jeit a ed- 4701 100 10 3 t a =60c, r h = 90% 1000hours #1 0/ 100 low t e mperature stor age jeit a ed- 4701 200 20 2 t a =- 40c 1000hours #1 0/ 100 r oom t emperature oper at ing life t a =25c, i f =35m a 1000hours #2 0/ 100 high t e mperature oper at ing life t a =85c, i f =25m a 1000hours #2 0/ 100 t e mperature humidity oper at ing li f e 60c, r h =90 % , i f =20m a 1000hours #2 0/ 100 low t e mperature oper at ing life t a =- 40c, i f = 20m a 1000hours #2 0/ 100 p e rma n ence of marki n g j e it a ed- 4701 500 50 1 isopropyl alc o hol , 235c , dipp ing time: 5min 1t im e #1 0/ 22 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 0/10 f r e e f a ll 3drops from a he i g ht of 75cm #1 0/ 10 ele c tro s ta ti c d i scharg es j e it a ed- 4701 300 30 4 hbm, 2kv , 1. 5 k ? , 100pf , 3pul se s, al te rn at el y posi ti v e or n e gat i ve #1 0/ 22 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 # items condition s f a il ur e criteria forward vo ltag e(v f ) i f =20m a >u . s . l . 1. 1 #1 lum i no us in te nsit y ( i v ) i f =20m a u . s . l .1.1 #2 lum i no us in te nsit y ( i v ) i f =20m a n i chia st s-da1- 2412 14 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 . 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 . (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.
n i chia st s-da1- 2412 15 (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 da mag e d led s ma y ha v e current fl o w at a l o w vo l t age o r no lo ng er il lu m i na te at a lo w cur r e nt . 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 . (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 obio l o gic 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.
n i chia st s-da1- 2412 16 (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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