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luxpia co.,ltd. 948-1, dunsan-li bongdong-eup, wa nju-gun, jeonbuk, korea tel 82-63-260-4500 fax 82-63-261-8255 comments luxpia co., ltd. date : . . . date : . . . designed by checked by approved by approved by approved by approved by / / / / / / part no. : LWH1035N s p ecification for a pp roval ( version 1.0 )
1/16 - contents - 1. features 2. package outline dimensions and materials 3. absolute maximum ratings 4. electro-optical characteristics 5. cie chromaticity diagram 6. materials 7. taping 8. packing 9. reliability 10. cautions 11. warranty 12. others 13. characteristic diagrams
2/16 1. features ? package : smd top view type (1chips in 1) ? dimension : 3.5 2.7 1.8 mm (lwh) ? small size surface mount type ? viewing angle : extremely wide(120 ? ) ? soldering methods : ir reflow soldering 2. package outline dimensions and recommended solder patterns (units : mm)
3/16 3. absolute maximum ratings (t a =25 ? ) item symbol value unit forward current i f 30 ma pulse forward current 1) i fp 100 ma reverse voltage v r 5 v power dissipation p d 110 mw operating temperature t opr -30 to+85 ? storage temperature t stg -40 to +100 ? 1) i fp conditions : pulse width 10msec & duty ratio 1/10
4/16 4. electro-optical characteristics (t a =25 ? ) item rank symbol condition min typ max unit 0 2.9 - 3.2 1 3.2 - 3.4 2 3.4 - 3.6 forward voltage 2) 3 v f i f = 20ma 3.6 - 3.8 v o 850 - 1200 p 1200 - 1700 q 1700 - 2400 luminous intensity 3) r i v i f = 20ma 2400 - 3400 mcd reverse current - i r v r =5v - - 50 u 2) forward voltages are tested at a current pulse duration of 10 ms and an accuracy within 0.1v. 3) the allowance of luminous intensity measurement is within 10%.
5/16 5. cie chromaticity diagram 4) ( t a =25 ? , i f =20ma) 0.22 0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.38 0.40 0.25 0.26 0.27 0.28 0.29 0.30 0.31 0.32 0.33 0.34 0.35 x y a b c 4) the allowance of color coordinates measurement is wi thin 0.01. (cie1931 standard colorimetric system) xyxyxy 0.270 0.240 0.290 0.270 0.310 0.300 0.270 0.280 0.290 0.310 0.310 0.340 0.290 0.310 0.310 0.340 0.330 0.370 0.290 0.270 0.310 0.300 0.330 0.330 abc
6/16 6. materials item material led chip ingan wire gold lead frame copper alloy/ni/ag plating encapsulation silicone + phosphor heat-resistant polymer ppa 7. taping 7.1. tape (material : ps conductive, 10 4 ~10 5 ? ) (units : mm) cathode anode
7/16 7.2. wheel (color : black, material : ps conductive, 10 9 ~10 12 ? ) - quantity per reel LWH1035N : 2,000pcs 7.3. label part no. size (l x w) : 85mm 50mm color rank i v rank v f rank (units : mm) LWH1035N a ? o - 3 2 , 000ea
8/16 8. packing ? the leds are packed in cardboard boxes after taping. the label shows part number, lot number, rank, and quantity. ? in order to protect the leds from mechanical shock, they are packed with cardboard boxes for transportation. ? the leds may be damaged if the boxes are drop ped or receive a strong impact against them, so cautions must be taken to prevent any possible damage. ? the boxes are not water-resistant and, ther efore, must be kept away from water and moisture. ? when the leds are transported, it is recommended that the same packing method as luxpia's is used. ? if noticeable damage on a box appears upon ar rival at the user?s warehouse, the user should submit a claim to luxpia within one week after arrival of the products.
9/16 9. reliability 9.1. test items and results no. test item standard te s t method test conditions note number of damaged sample 1 resistance to soldering heat (reflow) jesd22-b106 t sld =260 o c, 10sec (pre treatment 60 o c,90%,24hrs) 2 times 0/45 2 solderability (reflow) eiajed4701- 200 jesd22-b102 t sld =2155 o c, 3sec 1 time over 95% 0/45 3 temperature cycle eiajed4701- 100 jesd22-a104 -40 o c through +25 o c to +100 ? (30min/5min/30min) 100 cycles 0/45 4 high temperature storage eiajed4701- 200 jesd22-a103 t a =100 ? 1000 hrs 0/45 5 high humidity and temperature storage eiajed4701- 200 jesd22-a101 t a =60 , rh=90% ? 1000 hrs 0/45 6 low temperature storage eiajed4701- 200 jesd22-a103 t a =-40 ? 1000 hrs 0/45 7 steady-state operating lifetime test mil-std-883e jesd22-a108 t a =25 , i ? f =30ma 500 hrs 0/45 8 steady-state operating lifetime of high temperature mil-std-883e jesd22-a108 t a =85 , i ? f =7.5ma 1000 hrs 0/45 9 steady-state operating lifetime of high humidity and temperature - t a =60 , rh=90%, ? i f =20ma 500 hrs 0/45 10 steady-state operating lifetime of low temperature mil-std-810f jesd22-a108 t a =-30 , i ? f =20ma 1000 hrs 0/45 * led with luxpia standard circuit board
10/16 9.2. criteria for judging the damage criteria for judgement item symbol test condition min max forward voltage v f i f = 20ma - u.s.l. 5) 1.1 luminous intensity i v i f = 20ma l.s.l. 6) 0.7 - 5) u.s.l. : upper standard level 6) l.s.l. : lower standard level 10. cautions white leds are devices which are materialized by combining blue leds and special phosphors. consequently, the color of white leds is subject to change a little by an operating current. care should be taken after due co nsideration when using leds. (1) moisture-proof package ? when moisture is absorbed into the smt package it may vaporize and expand products during soldering. there is a possibility that this may ca use exfoliation of the cont acts and damage to the optical characteristics of the leds. for this reason, the moisture-proof package is used to keep moisture to a minimum in the package. ? a package of a moisture-absorbent material (silica gel) is inserted into the shielding bag. the silica gel changes its color from blue to pink as it absorbs moisture. (2) storage ? storage conditions - before opening the package : the leds should be kept at 30 or less and 90%rh or less. ? the leds should be used within a year. when storing the leds, mois ture-proof packaging with moisture -absorbent material (silica gel) is recommended. - after opening the package : the leds should be kept at 30 or less and 70%rh or less. ? the leds should be soldered within 168 hours (7 days) after opening the package. if unused leds remain, they should be stored in moisture-proof packages, such as sealed containers with packages of moisture-absorbent material (silica gel). it is also recommended to return th e leds to the original mo isture-proof bag and to reseal the moisture-proof bag again. ? if the moisture-absorbent mate rial (silica gel) has faded away or the leds have exceeded the rocommended storage time, baking treatment should be performed using th e following conditions. - baking treatment : more than 24 hours at 655 ? ? luxpia's led electrode sections are comprised of a silver-plated copper alloy. the silver surface may be affected by environments which contain co rrosive gases and so on. please avoid condition which may cause difficulty during soldering operat ions. it is recommended that the user use the leds as soon as possible.
11/16 ? please avoid rapid transitions in ambient temper ature, especially in high humidity environments where condensation can occur. (3) heat generation ? thermal design of the end product is of paramount importance. please consider the heat generation of the led when the system is designed. the coefficient of temperature increase per input electric power is affected by the thermal resistance of the circuit board and density of led placement on the board, as well as other components. it is necessary to avoid intense heat generation and operate within the maximum ratings given in the specification. ? the operating current should be decided after considering the ambient maximum temperature of leds. (4) soldering conditions ? the leds can be soldered in place using the reflow soldering method. luxpia does not make any guarantee on the leds after they have been assembled using the dip soldering method. ? recommended soldering conditions reflow soldering hand soldering lead solder lead-free solder pre-heat pre-heat time peak temperature soldering time condition 120~150 ? 120sec max 240 ? max 10sec max refer to profile y 180~200 ? 120sec max 260 ? max 5sec max refer to profile t temperature soldering time 350 ? max 3sec max (one time only) * after reflow soldering, rapid cooling should be avoided. [temperature-profile (surface of circuit board)] use the conditions shown to the following figures. < y : lead solder> 5jnf<tfd> _?tfd ?.by tfd.by tfd .by 1sfifbujoh _? _?tfd tfd.by 3ppn5fnq 5 f n q < ? >
12/16 < t : lead-free solder> ? occasionally there is a brightness decrease caused by the influence of heat or ambient atmosphere during air reflow. it is recommended that the user use the nitrogen reflow method. ? repairing should not be done after the leds have been soldered. when repairing is unavoidable, a double-head soldering iron shou ld be used. it should be co nfirmed beforehand whether the characteristics of the leds will or will not be damaged by repairing. ? reflow soldering should not be done more than two times. ? when soldering, do not put stress on the leds during heating. ? after soldering, do not warp the circuit board. (5) cleaning ? it is recommended that isopropyl alcohol be used as a solvent for cleaning the leds. when using other solvents, it should be confirmed beforeha nd whether the solvents will dissolve the package and the resin or not. freon solvents should not be used to clean the leds because of worldwide regulations. do not clean the leds by the ultrasonic. when it is absolutely necessary, the influence of ultrasonic cleaning on the leds depends on factors such as ultrasonic power and the assembled condition. before cleaning, a pre- test should be done to confirm whether any damage to the leds will occur. (6) static electricity ? static electricity or surge voltage damages the le ds. it is recommended that a wrist band or an anti-electrostatic glove be used when handling the leds. ? all devices, equipment and machinery must be properly grounded. it is recommended that measurements be taken against surge voltage to the equipment that mounts the leds. ? when inspecting the final products in which le ds were assembled,it is recommended to check whether the assembled leds are damaged by static elec tricity or not. it is easy to find static- damaged leds by a light-on test or a v f test at a lower current (below 1ma is recommended). ? damaged leds will show some unusual characteristics such as the leak current remarkably increases, the forward voltage becomes lower, or the leds do not light at the low current. - criteria : v f > 2.0v at i f =0.5 v (7) others ? care must be taken to ensure that the reverse voltage will not exceed the absolute maximum rating when using the leds with matrix drive. ? the led light output is strong enough to injure human eyes. precautions must be taken to prevent looking directly at the leds with un aided eyes for more than a few seconds. 5jnf<tfd> _?tfd ?.by tfd.by tfd .by 1sfifbujoh _? _?tfd tfd.by 3ppn5fnq 5 f n q < ? >
13/16 ? flashing lights have been known to cause disc omfort in people; you can prevent this by taking precautions during use. also, pe ople should be cautious when using equipment that has had leds incorporated into it. 11. warranty (1) luxpia warrants that its leds conform to the fo regoing specifications and that luxpia will convey good title to all leds sold. (2) luxpia disclaims all other warranties including the implied warranties of merchantability and fitness for a particular purpose. (3) in the event any led supplied by luxpia is found not to conform to the foregoing specifications within ninety days of receipt, luxp ia will repair or replace the led, at luxpia?s discretion, provided that the user (a) promptly notifies luxpia in writing of the details of the defect (b) ships the leds at the user?s expense to luxpia for examination, and (c) the defect is due to the negligence of luxpia and not mishandling or misuse by the user. (4) luxpia will not take responsibility for any troubl e that is caused by using the leds at conditions exceeding our specifications. (5) these specifications are applied only when a led stands alone and it is strongly recommended that the user of the leds confirms the properties upon assembly. luxpia is not responsible for failures caused during and after assembling. it wil l be excepted from the ru le if the failure would caused undoubtedly by luxpia. (6) a claim report stating details about the defect shall be made when returning defective leds. luxpia will investigate the report immediat ely and inform the user of the results. (7) the leds described in the specification are intended to be used fo r ordinary electronic equipment (such as office equipment, communicati ons equipment, on the applications in which exceptional quality and reliability are required, part icularly when the failure or malfunction of the leds may directly jeopardize life or health (such as for airplanes, aerospace, submersible repeaters, nuclear reactor control systems, automobiles, traf fic control equipment, life support systems and safety devices) (8) luxpia?s liability for defective lamps shall be limited to replacement and in no event shall luxpia be liable for consequential damage or lost profits. 12. others (1) the warranties of quality set forth herein are exclusive. all prev ious negotiations and agreements not specifically incorporated herein are superseded and rendered null and void. (2) both parties shall sincerely try to find a solu tion when any disagreement occurs regarding these specifications. (3) user shall not reverse engineer by disassembling or analysis of the leds without having prior written consent from luxpia. when defective leds ar e found, the user shall inform luxpia directly before disassembling or analysis. (4) these specifications can be revised upon mutual agreement. (5) luxpia understands that the user accepts the content of these specifications, if the user does not return these specifications with si gnatures within 3 weeks after receipt.
14/16 13. characteristic diagrams (1) forward voltage vs. forward current (3) ambient temperature vs. allowable forward current (4) ambient temperature vs. relative luminosity (t a =25 ? ) forward current i f [ma] forward voltage v f [v] (2) forward current vs. relative luminosity (t a =25 ? ) forward current i f [ma] relative luminosity [a.u.] allowable forward current i af [ma] relative luminosity[a.u.] ambient temperature t a [ ? ] ambient temperature t a [ ? ] (i f =20ma)
15/16 (t a =25 ? , i f =20ma) v( ) = standard eye response curve (7) relative spectral emission ?d ?d ?d ?d ?d (5) ambient temperature vs. chromaticity diagram y x (6) forward current vs. chromaticity diagram n" n" n" n" n" (t a =25 ? ) y x
16/16 (8) radiation characteristics (t a =25 ? , i f =20ma) relative luminous intensity iv[%]

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