nichia sts-da1-2370 nichia corporation specifications for white led NSSW203t pb-free reflow soldering application rohs compliant
nichia sts-da1-2370 1 specifications (1) absolute maximum ratings item symbol absolute maximum rating unit forward current i f 25 ma pulse forward current i fp 80 ma reverse voltage v r 5 v power dissipation p d 88 mw operating temperature t opr -30~85 c storage temperature t stg -40~100 c junction temperature t j 100 c * absolute maximum ratings at t a =25c. * i fp conditions with pulse width 10ms and duty cycle 10%. (2) initial electrical/optical characteristics item symbol condition typ unit forward voltage v f i f =20ma 3.2 v reverse current i r v r =5v - a luminous flux v i f =20ma 5.1 lm luminous intensity i v i f =20ma 1.75 cd x - i f =20ma 0.300 - chromaticity coordinate y - i f =20ma 0.295 - * characteristics at t a =25c. * luminous flux value as per cie 127:2007 standard. * chromaticity coordinates as per cie 1931 chromaticity chart.
nichia sts-da1-2370 2 ranks item rank min max unit forward voltage - 2.8 3.5 v reverse current - - 50 a w550 5.50 5.75 w525 5.25 5.50 w500 5.00 5.25 w475 4.75 5.00 w450 4.50 4.75 luminous flux w425 4.25 4.50 lm color ranks rank 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 rank 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 rank 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 rank sbj2 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 rank sbj7 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 rank sbk6 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 rank sbm2 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 * ranking at t a =25c. * tolerance of measurements of the forward voltage is 0.05v. * tolerance of measurements of the luminous flux is 7%. * tolerance of measurements of the chromaticity coordinate is 0.005. * a shipment shall consist of leds in a combination of the above ranks. the percentage of each rank in the shipment shall be determined by nichia.
nichia sts-da1-2370 3 chromaticity diagram sa52 sa56 sa57 sa62 sa66 sa67 sbj2 sbj6 sbj7 sbk2 sbk6 sbk7 sbm2 sbm6 sbm7 0.20 0.25 0.30 0.35 0.40 0.20 0.25 0.30 0.35 0.40 x y
nichia sts-da1-2370 4 outline dimensions sts-da7-2472 NSSW203 ? no. ( g unit: mm) this product complies with rohs directive. u? rohs ?m??? * ( g unit: mm, tolerance: 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 0.0021g(typ) dimensions do not include mold flash or metal burr. ?????? * ka 3.7 (0.63) 0.56 (0.07) 0.25 0.68 0.25 cathode anode cathode mark 3.8 (2.1) (0.21) 0.30.08 0.41 1
nichia sts-da1-2370 5 soldering ? recommended reflow soldering condition(lead-free solder) ? recommended hand soldering condition temperature 350c max soldering time 3sec max recommended soldering pad pattern ( g unit: mm) 1.68 0.76 0.76 0.45 0.85 0.47 * this led is designed to be reflow soldered on to a pc b. if dip soldered, nichia cannot guarantee its reliability. * reflow soldering must not be performed more than twic e. hand soldering must not be performed more than once. * avoid rapid cooling. ramp down the temper ature gradually from th e peak temperature. * nitrogen reflow soldering is re commended. air flow soldering condit ions can cause optical degradation, caused by heat and/or atmosphere. * repairing should not be done after the leds ha ve been soldered. when repairing is unavoidable, a double-head soldering iron should be used. it should be confirmed beforehand whether the characteri stics of the leds will or will not be damaged by repairing. * when soldering, do not apply stre ss to the led while the led is hot. 120sec max pre-heat 180 to 200c 260c max 10sec max 60sec max above 220c 1 to 5c per sec
nichia sts-da1-2370 6 tape and reel dimensions nxxx203x sts-da7-2473 1 `?? 7000 ? * the tape packing method complies with jis c 0806 (packaging of electronic comp onents on continuous tapes). * jis c 0806 ???`??????? ?`??? tape 1.75 0.1 2 0.05 4 0.1 5.5 0.05 4 0.1 12 +0.3 -0.1 -0 1.5 +0.1 ( g unit: 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 ???`?` embossed carrier tape ???` top cover tape feed direction ` 400mm leader without top cover tape 400mm min ?` 160mm ? trailer 160mm min(empty pockets) led ?? loaded pockets 100mm ? leader with top cover tape 100mm min(empty pocket) reel size: 7000pcs 1.1 0.1 0.15 0.05 3.91 0.1 0.4 0.1 0.8 0.05 cathode mark
nichia sts-da1-2370 7 packaging - tape & reel nichia led sts-da7-0006b nxxxxxxx ? label ? label ? no. reel ` ?` seal moisture-proof bag ?? ? for details, see "lot numbering scheme" in this document. * ??????????? if not provided, it is not indicated on the label. ******* is the customer part number. O??????? * ******* ?? the label does not have the rank field for un-ranked products. * ??????????? rohs nxxxxxxx xxxx led ******* nichia corporation 491 oka, kaminaka, anan, tokushima, japan type lot qty. ymxxxx-rrr pcs rohs nxxxxxxx xxxx led ******* rrr pcs type rank qty. nichia corporation 491 oka, kaminaka, anan, tokushima, japan reels are shipped with desiccants in heat-seale d moisture-proof bags. ????`??????`???? desiccants ? products shipped on tape and reel are packed in a moisture-proof bag. they are shipped in cardboard boxes to protect th em from external forces during transportation. ??\H?y?B???y? * ?`???????y?????? * ?QH??n?????u?p?????? * * u???`?????n?go??`y? using an original packaging material or equivalent in transit is recommended. do not expose to water, the box is not water-resistant. do not drop or shock the box. it may damage the products. moisture-proof bags are packed in cardboard boxes with corrugated partitions. ??K???`?
nichia sts-da1-2370 8 lot numbering scheme lot number is presented by using the following alphanumeric code. ymxxxx - rrr y - year year y 2009 9 2010 a 2011 b 2012 c 2013 d 2014 e m - month month 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-nichia's product number rrr-ranking by color coordinates, ranking by luminous flux
nichia sts-da1-2370 9 derating characteristics NSSW203 sts-da7-2474 ? no. derating1 0 10 20 30 40 50 0 2040 6080100120 (35, 25.0) (85, 5.50) dut y 1 10 100 1 10 100 25 80 S all owa bl e f orwar d c urr ent ( m a) ??-S ambient temperature vs allowable forward current S allowable forward curr ent(ma) ?? ambient temperature(c) ?` ?` duty ratio(%) ?`?`-S duty ratio vs allowable forward current t a = 25c
nichia sts-da1-2370 10 optical characteristics NSSW203 ? no. sts-da7-2475 spectrum 0.0 0.2 0.4 0.6 0.8 1.0 350 400 450 5 00 550 600 650 700 7 50 ? relative illuminance(a.u.) directivity1 90 80 70 60 50 40 30 20 10 0 -10 -2 0 -30 -4 0 -50 -6 0 -7 0 -80 -9 0 k??? spectrum k? relative emission intensity(a.u.) L wavelength(nm) ? directivity ? radiation angle 10.500.5 1 20ma i f = t a =25c * ??? all characteristics shown are for reference only and are not guaranteed. 20ma i fp = t a =25c y y xx x- x y-y
nichia sts-da1-2370 11 forward current characteristics / temperature characteristics NSSW203 sts-da7-2476 ? no. tavf 2.0 2.5 3.0 3.5 4.0 4.5 5.0 -60 -40 -20 0 20 40 60 80 100 1 20 ta iv 0.6 0.8 1.0 1.2 1.4 -60 -40 -2 0 0 20 40 6 0 80 100 120 vfif 1 10 100 2.02.53.03.54.04.55.0 20 80 relative luminous flux(a.u.) ??- ambient temperature vs relative luminous flux for ward curren t( m a) ifiv 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 20406080100 relative luminous flux(a.u.) - forward current vs relative luminous flux forw ard current(ma) ?R- forward voltage vs forward current ??-?R ambient temperature vs forward voltage ?R forward volta g e(v) ?R forward voltage(v) ?? ambient tem p erature ( c ) ?? ambient temperature(c) i fp = 2 0m a i fp = 6 0m a i fp = 5 ma t a =25c * ??? all characteristics shown are for reference only and are not guaranteed. t a =25c i fp = 20ma
nichia sts-da1-2370 12 forward current characteristics / temperature characteristics ? no. NSSW203 sts-da7-2477 taxy 0.28 0.29 0.30 0.31 0.32 0.28 0.29 0.30 0.31 0.32 - 30 c 0c 25 c 50c 85c x ifxy 0.28 0.29 0.30 0.31 0.32 0.28 0.29 0.30 0.31 0.32 1ma 5ma 20ma 25ma 80m a x y y 20ma i fp = ? ? -? ambie nt te mperature vs chromaticity c oordinate -? forward current vs chromaticity c oordinate t a =25c * ??? all characteristics shown are for reference only and are not guaranteed.
nichia sts-da1-2370 13 reliability (1) tests and results te s t reference standard test conditions te s t duration failure criteria # units failed/tested resistance to soldering heat (reflow soldering) jeita ed-4701 300 301 t sld =260c, 10sec, 2reflows, precondition: 30c, 70%rh, 168hr #1 0/50 solderability (reflow soldering) jeita ed-4701 303 303a t sld =2455c, 5sec, lead-free solder(sn-3.0ag-0.5cu) #2 0/50 thermal shock jeita ed-4701 300 307 0c to 100c, 15sec dwell 20cycles #1 0/50 temperature cycle jeita ed-4701 100 105 -40c(30min)~25c(5min)~ 100c(30min)~25c(5min) 100cycles #1 0/50 moisture resistance (cyclic) jeita ed-4701 200 203 25c~65c~-10c, 90%rh, 24hr per cycle 10cycles #1 0/50 high temperature storage jeita ed-4701 200 201 t a =100c 1000hours #1 0/50 temperature humidity storage jeita ed-4701 100 103 t a =60c, rh=90% 1000hours #1 0/50 low temperature storage jeita ed-4701 200 202 t a =-40c 1000hours #1 0/50 room temperature operating life condition 1 t a =25c, i f =20ma 1000hours #1 0/50 room temperature operating life condition 2 t a =25c, i f =25ma 500hours #1 0/50 high temperature operating life t a =85c, i f =5ma 1000hours #1 0/50 temperature humidity operating life 60c, rh=90%, i f =15ma 500hours #1 0/50 low temperature operating life t a =-30c, i f =20ma 1000hours #1 0/50 vibration jeita ed-4701 400 403 200m/s 2 , 100~2000~100hz, 4cycles, 4min, each x, y, z 48minutes #1 0/50 board bending jeita ed-4702b 003 1bend to a deflection of 3mm for 51sec #1 0/50 notes: measurements are performed after allowi ng the leds to return to room temperature. (2) failure criteria criteria # items conditions failure criteria forward voltage(v f ) i f =20ma >u.s.l.1.1 luminous flux( v ) i f =20ma u.s.l.2.0 #2 solderability - less than 95% solder coverage u.s.l. : upper specification limit l.s.l. : lower specification limit
nichia sts-da1-2370 14 cautions (1) storage conditions te m p e ra t u r e humidity time before opening aluminum bag 30c 90%rh within 1 year from delivery date storage after opening aluminum bag 30c 70%rh 168hours baking 655c - 24hours product complies with jedec msl 3 or equivalent. se e ipc/jedec std-020 for moisture-sensitivity details. absorbed moisture in led packages can vaporize and expand during soldering, which can cause interface delamination and result in optical performance degradation. products are packed in moisture-proof aluminum bags to minimize moisture absorptio n during transportation and storage. included silica gel desiccants change from blue to red if moisture had penetrated bags. after opening the moisture-proof aluminum bag, the products should go through the soldering process within the range of the conditions stated above. unused remaining leds should be stored with silica gel desiccants in a hermetically sealed container, prefer ably the original moisture -proof bags for storage. after the ?period after opening? stor age time has been exceeded or silica gel desiccants are no longer blue, the products should be baked. baking should only be done once. customer is advised to keep the leds in an airtight cont ainer when not in use. exposu re to a corrosive environment may cause the plated metal parts of the product to tarnish, which could adversely affect so ldering and optical characteristi cs. it is also recommended to return the leds to the original moisture proof bags and reseal. after assembly and during use, silver plating can be affected by the corrosive gases emitted by components and materials in close proximity of the leds within an end product, and the gases entering into the product from the external atmosphere. the above should be taken into consideration when designing. resin materials, in particular, may contain substanc es which can affect silver plating, such as halogen. do not use sulfur-containing materials in commercial products. some materials, such as seals and adhesives, may contain sulfur . the extremely corroded or contaminated plating of leds might cause an open ci rcuit. silicone rubber is recommended as a material for seals. bear in mi nd, the use of silicones may lead to silico ne contamination of electrical contacts inside the products, caused by lo w molecular weight volatile siloxane. to prevent water condensation, please avoid large temperat ure and humidity fluctuations for the storage conditions. (2) directions for use when designing a circuit, the current through each led must not exceed the absolute maximum rating. operating at a constant current per led is recommended. in case of operating at a constant voltage, circuit b is recommended . if the leds are operated with constant voltage using circui t a, the current through the leds may vary due to the variation in forward voltage ch aracteristics of the leds. (a) ... (b) ... leds should be operated in forward bias. driving circuits must not subject leds to either forward or reverse voltage while off . continuous reverse voltage can cause migration and led damage. for stabilizing the led characteristics, it is recommended to operate at greater than 10% nominal current. care must be taken to ensure that the reverse voltage will not exceed the absolute maximum rating when using the leds with matrix drive. for outdoor use, necessary measures should be taken to prevent water, moisture and salt air damage.
nichia sts-da1-2370 15 (3) handling precautions do not handle leds with bare hands, it may contaminate the led surface and affect optical characteristics. in the worst case, catastrophic failure from excess pres sure through wire-bond breaks and package damage may result. when handling the product with tweezers, be careful not to apply excessive force to the resin. otherwise, the resin can be cut, ch ipped, delaminate or deform ed, causing wire-bond breaks and catastrophic failures. dropping the produc t may cause damage. do not stack assembled pcbs together. fa ilure to comply can cause the resin portio n of the product to be cut, chipped, delaminated and/or deformed. it may cause wi re to break, leading to catastrophic failures. (4) design consideration pcb warpage after mounting the products on to a pcb can cause the package to break. the led should be placed in a way to minimize the stress on the leds due to pcb bow and twist. the position and orientation of the leds affect how much mechan ical stress is exerted on the leds placed near the score lines. the led should be placed in a way to minimize the stress on the leds due to board flexing. board separation must be performed using special jigs, not using hands. (5) electrostatic discharge (esd) the products are sensitive to static electricity or surge voltage. esd can damage a die and its reliability. when handling the products, the following measures against electrostatic discharge are strongly recommended: eliminating the charge grounded wriststrap, es d footwear, clothes, and floors grounded workstation equipment and tools esd table/shelf mat made of conductive materials proper grounding is required for all devices, equipment, and machinery used in product assembly. surge protection should be considered when design ing of commercial products. if tools or equipment contain insulating materials such as glass or plastic, the following measures against electros tatic discharge are strongly recommended: dissipating static charge with conductive materials preventing charge generation with moisture neutralizing the charge with ionizers the customer is advised to chec k if the leds are damaged by esd when performing the characteristics inspection of the leds in the application. damage can be detected with a forward voltag e measurement or a light-up test at low current ( 1ma). esd damaged leds may have an increased leakage current, current flow at a low voltage or no longer illuminate at a low current . failure criteria: v f <2.0v at i f =0.5ma (6) thermal management proper thermal management is an impo rtant when designing produc ts with leds. led die temperature is affected by pcb thermal resistance and led spacing on the board. please design products in a way that the led die temperature does not exceed the maximum junction temperature (t j ). drive current should be determined for the surrounding ambient temperature (t a ) to dissipate the heat from the product. (7) cleaning if required, isopropyl alcohol (ipa) should be used. ot her solvents may cause premature failure to the leds due to the damage to the resin portion. the effects of such solvents should be verified prior to use. in addition, the use of cfcs such as freon is heavily regulated. ultrasonic cleaning is not recommended since it may have adverse effects on the leds depending on the ultrasonic power and how led is assembled. if ultrasonic cleaning must be used, the customer is advise d to make sure the leds will not be damaged prior to cleaning.
nichia sts-da1-2370 16 (8) eye safety in 2006, the international electrical commission (iec ) published iec 62471:2006 photobiological safety of lamps and lamp systems, which added leds in its scope. on the other hand, the iec 60825-1:2007 laser safety standard removed leds from its scope. however, please be advised that some countries and regions have adopted standards based on the iec laser safety standard iec 60825- 1:20112001, which still includes leds in its scope. most of nichia's leds can be classified as belo nging into either the exempt group or risk group 1. high-power leds, that emit light containing blue wavelengths, may be classified as risk group 2. please proceed with caution when viewing directly any leds driven at high current, or viewing leds with optical instruments which may greatly increase the damages to your eyes. viewing a flashing light may cause eye discomfort. when incorporating the led into your product, please be careful to avoid adverse effects on the human body caused by light stimulation. (9) others the leds described in this brochure are intended to be used for ordinary electronic equipment (such as office equipment, communications equipment, measurement instruments and household appliances). consult nichia's sales staff in advance for information on the applications in which exceptional quality and reliability are required, particularly when the failure or malfunction of the leds may directly jeopardize life or health (such as for airplanes, aerospace, submersibl e repeaters, nuclear reactor control system, automobiles, traffic control equipment, life support systems and safety devices). the customer shall not reverse engineer by disassembling or analysis of the leds without having prior written consent from nichia. when defective leds are found, the customer shall inform nichia directly before disassembling or analysis. both the customers and nichia will agree on official specificat ions of supplied products before a customer's volume production . specifications and appearance subject to change for improvement without notice.
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