nichia sts-da1-2948c nichia corporation specifications for white led NCSW170Bt pb-free reflow soldering application built-in esd protection device rohs compliant
nichia sts-da1-2948c 1 specifications (1) absolute maximum ratings item symbol absolute maximum rating unit forward current i f 1200 ma pulse forward current i fp 1500 ma allowable reverse current i r 85 ma power dissipation p d 4.44 w operating temperature t opr -40~125 c storage temperature t stg -40~125 c junction temperature t j 150 c * absolute maximum ratings at t s =25c. * i fp conditions with pulse width 10ms and duty cycle 10%. (2) initial electrical/optical characteristics item symbol condition typ max unit forward voltage v f i f =1000ma 3.4 - v luminous flux v i f =1000ma 315 - lm x - i f =1000ma 0.3292 - - chromaticity coordinate y - i f =1000ma 0.3439 - - r js_real - 4.2 5.4 c/w thermal resistance r js_el - 3.0 3.8 c/w * characteristics at t s =25c. * luminous flux value as per cie 127:2007 standard. * chromaticity coordinates as per cie 1931 chromaticity chart. * r js_real are decided by taking into ac count energy conversion effici ency. please refer to jesd51.
nichia sts-da1-2948c 2 ranks item rank min max unit forward voltage - 2.9 3.7 v m350 350 400 m300 300 350 luminous flux m250 250 300 lm color ranks rank asw60 rank sw50 x 0.3163 0.3138 0.3296 0.3300 x 0.3366 0.3376 0.3548 0.3515 y 0.3181 0.3381 0.3526 0.3308 y 0.3369 0.3616 0.3736 0.3487 rank sw57 x 0.3221 0.3207 0.3376 0.3366 y 0.3261 0.3462 0.3616 0.3369 * ranking at t s =25c. * forward voltage tolerance: 0.05v * luminous flux tolerance: 7% * chromaticity coordinate tolerance: 0.005 * leds from the above ranks will be shipped. the rank combination ratio per sh ipment will be decided by nichia.
nichia sts-da1-2948c 3 chromaticity diagram 6020k 5310k 4745k asw60 sw50 sw57 0.25 0.30 0.35 0.40 0.45 0.25 0.30 0.35 0.40 0.45 x y \?E blac kbody loc us
nichia sts-da1-2948c 4 outline dimensions sts-da7-5259a NCSW170B ? no. ( g unit: mm) this product complies with rohs directive. u? rohs ?m??? * ( g unit: mm, tolerance: 0.1) ka o protection device dimensions do not include mold flash. ?????? * 0.75 1.6 1.23 cathode anode 0.3 (1.15) 1.8 1.45 (1.15) (0.715) (0.15) (0.51) ? item ??`| package materials w| phosphor sheet materials ?O| electrodes materials description ?? ceramics ?|w? hard glass (with phosphor) ? au-plated ??| encapsulating resin materials ?`? silicone resin | weight 0.0057g(typ)
nichia sts-da1-2948c 5 soldering ? reflow soldering condition(lead-free solder) recommended soldering pad pattern recommended metal solder stencil aperture ( g unit: mm) r0.075 1.6 0.43 1.21 1.7 0.3 1.34 r0.075 * this led is designed to be reflow soldered on to a pcb. if dip soldered or hand soldered, nichia cannot guarantee its reliability. * reflow soldering must not be performed more than twice. * the reflow profile should be determined based on the recommended soldering condit ions for the solder paste that is used. * avoid rapid cooling. ramp down the temp erature gradually from the peak temperature. * nitrogen reflow soldering is recommended. air flow soldering conditions can cause optical degradation, caused by heat and/or atmosphere. * this product uses glass on the emitting surface; if excessive force is applied, it may cause the glass to be damaged, chipped and/or deformed. if the glass is damaged, chippe d and/or deformed, then the internal wires may be damaged and the reliability may decrease. recommended conditions: using a nozzle designed for the leds is recommended. (see the nozzle drawing below) nozzle contact area: the center of the phosphor shee t. (see the second figure from the right) ( g unit: mm) 1.2 0.4 2.2 (2) r0.1 if the nozzle is off-center and makes contact with the edges of the phosphor sheet, it may cause the glass to be chipped and/or damaged. one example of this is shown in the first figure from the right. placement pressure 3.5n/mm2 * max. force: 5n vacuum pressure 8n/cm2( 0.8kgf/cm2) 120sec max pre-heat 180 to 200c 260cmax 10sec max 60sec max above 220c 1 to 5c per sec
nichia sts-da1-2948c 6 * repairing should not be done after the leds have been soldered. when repairing is unavoidable, a hot plate should be used. it should be confirmed beforehand whether the characteristics of the leds wi ll or will not be damaged by repairing. * when soldering, do not apply stre ss to the led while the led is hot. * when using a pick and place machine, ch oose an appropriate nozzle for this product. * the recommended soldering pad pattern is design ed for attachment of the led without problems. when precise mounting accuracy is required, such as high-density mounting, ensure that the size and shape of the pad are suitable for the circuit design. * when flux is used, it should be a ha logen free flux. ensure that the manufacturing process is not designed in a manner where the flux will come in contact with the leds. * make sure that there are no issues with the type and amount of solder that is being used. * all of the electrode pads are on the backside of this produc t; solder connections will not be able to be seen nor confirmed by a normal visual inspection. when using the product, ensure that there are no issues with the soldering conditions.
nichia sts-da1-2948c 7 tape and reel dimensions reel size: 3500pcs sts-da7-7109 1 `?? 3500 ? * nxxx170x ?` / ` trailer and leader top cover tape led ?? ` 400mm ?` 160mm ? trailer 160mm min(empty pockets) loaded pockets ???` embossed carrier tape ???`?` feed direction leader without top cover tape 400mm min 100mm ? leader with top cover tape 100mm min(empty pocket) the tape packing method complies with jis c 0806 (packaging of electronic components on continuous tapes). * jis c 0806 ???`??????? ? no. ( g unit: mm) 60 +1 -0 `? reel f 1 3 0 . 2 f 2 1 0 . 8 ? label 2 1 0 . 8 1 3 0 . 2 11.4 1 9 0.3 180 +0 -3 -0 1.5 +0.1 ?`??? tape 4 0.1 1.75 0.1 4 0.1 2 0.05 3.5 0.05 8 0.1 when the tape is rewound due to work interruptions, no more than 10n should be applied to the embossed carrier tape. the leds may stick to the top cover tape. * g?I???????`?`??? ???`??? (10n ) ? led `?`?N??? 1.65 0.05 0.20 0.05 0.95 0.05 2 0.05 1 +0.2 -0
nichia sts-da1-2948c 8 packaging - tape & reel nichia led sts-da7-0006c nxxxxxxx ? label ? label ? no. reel ` ?` seal moisture-proof bag ?? 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-sealed moisture-proof bags. ????`??????`???? desiccants ? moisture-proof bags are packed in cardboard boxes with corrugated partitions. ??K???`? ?`???????y?????? * ??\H?y?B???y? * ?QH??n?????u?p?????? * using the original package material or equivalent in transit is recommended. do not expose to water. the box is not water-resistant. do not drop or expose the box to external forces as it may damage the products. 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. * u???`?????n?go??`y? if not provided, it will not be indicated on the label. ******* is the customer part number. O??????? * ******* ?? ? for details, see "lot numbering code" in this document. * ??????????? the label does not have the rank field for un-ranked products. * ???????????
nichia sts-da1-2948c 9 lot numbering code lot number is presented by using the following alphanumeric code. ymxxxx - rrr y - year year y 2014 e 2015 f 2016 g 2017 h 2018 i 2019 j 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 coordi nates, ranking by luminous flux
nichia sts-da1-2948c 10 derating characteristics ncsx170b ? no. sts-da7-6974a derating2 0 300 600 900 1200 1500 0 30 60 90 120 150 (125, 1200) ????(`?)-S solder temperature(cathode side) vs allowable forward current S allowable forward current(ma) ????(`?) solder temperature(cathode side)(c) duty 100 1000 10000 1 10 100 1200 1500 S allowable forward current ( ma ) ?`?` duty ratio(%) ?`?`-S duty ratio vs allowable forward current t a =25c
nichia sts-da1-2948c 11 optical characteristics NCSW170B ? no. sts-da7-5253b spectrum 0.0 0.2 0.4 0.6 0.8 1.0 350 400 450 500 550 600 650 700 750 ? relative illuminance(a.u.) directivity1 90 80 70 60 50 40 30 20 10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 k??? spectrum k? relative emission intensity(a.u.) L wavelength(nm) ? directivity ? radiation angle 1 0.5 0 0.5 1 1000ma i fp = t a =25c 1000ma i fp = t a =25c * ??? all characteristics shown are for refe rence only and are not guaranteed.
nichia sts-da1-2948c 12 forward current characteristics / temperature characteristics NCSW170B ? no. sts-da7-5254b tavf 2.5 3.0 3.5 4.0 -60 -30 0 30 60 90 120 150 taiv 0.6 0.8 1.0 1.2 1.4 -60 -30 0 30 60 90 120 150 vfif 100 1000 10000 2.5 3.0 3.5 4.0 1500 relative luminous flux(a.u.) ??- ambient temperature vs relative luminous flux forward current(ma) ifiv 0.0 0.5 1.0 1.5 2.0 0 300 600 900 1200 1500 1800 relative luminous flux(a.u.) - forward current vs relative luminous flux forward 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) t a =25c * ??? all characteristics shown are for refe rence only and are not guaranteed. t a =25c i fp =1000ma i fp =1000ma
nichia sts-da1-2948c 13 forward current characteristics / temperature characteristics NCSW170B ? no. sts-da7-5255b taxy 0.33 0.34 0.35 0.36 0.37 0.31 0.32 0.33 0.34 0.35 -40c 0c 25c 125c x ifxy 0.33 0.34 0.35 0.36 0.37 0.31 0.32 0.33 0.34 0.35 100ma 350ma 1000ma 1200ma 1500ma x y y 1000ma i fp = ??-? ambient temperature vs chromaticity coordinate -? forward current vs chromaticity coordinate t a =25c * ??? all characteristics shown are for refe rence only and are not guaranteed.
nichia sts-da1-2948c 14 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 0/10 solderability (reflow soldering) jeita ed-4701 303 303a t sld =2455c, 5sec, lead-free solder(sn-3.0ag-0.5cu) #2 0/10 thermal shock jeita ed-4701 300 307 -40c to 125c, 1min dwell, 10sec transfer, precondition: 30c, 70%rh, 168hr 100cycles #1 0/50 temperature cycle jeita ed-4701 100 105 -40c(30min)~25c(5min)~ 125c(30min)~25c(5min) 100cycles #1 0/10 moisture resistance (cyclic) jeita ed-4701 200 203 25c~65c~-10c, 90%rh, 24hr per cycle 10cycles #1 0/10 high temperature storage jeita ed-4701 200 201 t a =125c 1000hours #1 0/10 temperature humidity storage jeita ed-4701 100 103 t a =85c, rh=85% 1000hours #1 0/10 low temperature storage jeita ed-4701 200 202 t a =-40c 1000hours #1 0/10 room temperature operating life t a =25c, i f =1200ma 1000hours #1 0/10 high temperature operating life t a =125c, i f =540ma 1000hours #1 0/10 temperature humidity operating life 85c, rh=85%, i f =1000ma 1000hours #1 0/10 low temperature operating life t a =-40c, i f =1200ma 1000hours #1 0/10 permanence of marking jeita ed-4701 500 501 isopropyl alcohol, 235c, dipping time: 5min 1time #1 0/10 vibration jeita ed-4701 400 403 200m/s 2 , 100~2000~100hz, 4cycles, 4min, each x, y, z 48minutes #1 0/10 electrostatic discharges jeita ed-4701 300 304 hbm, 2kv, 1.5k ? , 100pf, 3pulses, alternately positive or negative #1 0/10 notes: 1) r ja 13.0c/w 2) measurements are pe rformed after allowing the leds to return to room temperature. (2) failure criteria criteria # items conditions failure criteria forward voltage(v f ) i f =1000ma >u.s.l.1.1 #1 luminous flux( v ) i f =1000ma nichia sts-da1-2948c 15 cautions (1) storage conditions temperature 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. see 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 performan ce degradation. products are packed in moisture-proof aluminum bags to minimize moisture absorption 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, preferab ly the original moisture-proof bags for storage. after the ?period after opening? storage time has been exceeded or silica gel desiccants are no longer blue, the products should be baked. baking should only be done once. although the leads or electrode pads (anode and cathode) of the product are plated with gold, prolonged exposure to a corrosive environment might cause the gold plated the leads or electrode pads to tarnish, and thus leading to difficulties in soldering. if unused leds remain, they must be stored in a hermetically sealed container . nichia recommends using the origin al moisture-proof bag for storage. do not use sulfur-containing materials in commercial products. some materials, such as seals and adhesives, may contain sulfur . the contaminated plating of leds might cause an open circ uit. silicone rubber is recommen ded as a material for seals. bear in mind, the use of silicones may lead to silicone contamination of electrical contacts inside the products, caused by low molecular weight volatile siloxane. to prevent water condensation, please avoid large temperat ure and humidity fluctuations for the storage conditions. do not store the leds in a dusty environment. do not expose the leds to direct sunlight and/or an environment where the temperature is higher than normal room temperature. (2) directions for use when designing a circuit, the curre nt 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) ... this product should be operated using forward curre nt. ensure that the product is not subjected to either forward or reverse voltage while it is not in use. in particular, subjecting it to continuous reverse voltage may cause migration, which may cause damage to the led die. when used in displays that are not used for a long time, the main power supply should be switched off for safety. it is recommended to operate the leds at a current greater th an 10% of the sorting current to stabilize the led characteristic s. ensure that excessive voltages such as li ghtning surges are not applied to the leds. for outdoor use, necessary measures should be take n to prevent water, moisture and salt air damage.
nichia sts-da1-2948c 16 (3) handling precautions do not handle the leds with bare hands as it will contaminat e the led surface and may affect the optical characteristics: it might cause the led to be defo rmed and/or the bump to break, which will cause the led not to illuminate. when handling the product with tweezers, be ca reful not to apply excess ive force to the resin. otherwise, the resin can be cut, ch ipped, delaminate or deform ed, causing bump-bond breaks and catastrophic failures. dropping the product may cause damage. do not stack assembled pcbs together. failure to comply can cause the resin portion of the product to be cut, chipped, delaminated and/or deformed. it may cause bu mp to break, leading to catastrophic failures. (4) design consideration pcb warpage after mounting the products onto 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 mechanical stress is exerte d 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. when using an aluminum base pcb, verify that the pcb will not cause any malfunctions to the led. thermal stress during use can cause the solder joints to crack. ensure an insulating layer with a low modulus of elasticity is used for the insulating la yer of the aluminum base pcb. ensure that the chosen land pattern has a sold er mask which does not cover the copper pads that the led will be attached to or the area underneath the led. (non solder mask defined [nsmd] pads are recommended, see the figure below.) (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 wrist strap, esd footwear, clothes, and floors grounded workstation equipment and tools esd table/shelf mat made of conductive materials ensure that tools, jigs and machines that are being used are properly grounded and that proper grounding techniques are used in wo rk areas. for devices/equipment that mount the leds, protection against surge voltages should also be used. 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 insp ection 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 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 base material base material nsmd( ?X recommended) smd( reference) u?g?? u?g? `? solder mask `? solder mask ~?? copper pad ~?? copper pad u? led ??` solder paste ??` solder paste before mounting the led after mounting the led u? led
nichia sts-da1-2948c 17 (6) thermal management proper thermal management is an impo rtant when designing products with le ds. 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 the leds should not be cleaned with water, benzine, and/or thinner. 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. when dust and/or dirt adheres to the leds, soak a cloth with is opropyl alcohol (ipa), then sque eze it before wiping the leds. ultrasonic cleaning is not recommended sinc e 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. (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 ligh t 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 equipmen t (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 co ntrol 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 sh all inform nichia directly before disassembling or analysis. the specifications and appearance of th is product may change without notice; nichia does not guarantee the contents of this specification. both the customer and nichia will agree on the official specifications of supplied products before the volume production of a program begins.
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