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-1- white lamp led LW551A <060915> rev. 0.3 ???? : qp-7-03-05 (rev.00) features ? high luminous white emission ? non-standoff leads ? 5mm package ? viewing angle : 52 o ? color coordinates : x=0.31 y=0.31 applications ? electronic signs and signals ? specialty lighting ? small area illumination ? torches and head lamps ? backlighting ? outdoor displays technical datasheet lamp leds are effective in hot thermal and humid condition. th is high brightness and weather-resistant packaging design makes these lamp leds ideal for outdoor applications such as traffic signals, variable message signs and backlighting for transparent sign panels [ preliminary ]
-2- white lamp led LW551A <060915> rev. 0.3 ???? : qp-7-03-05 (rev.00) outline dimensions notes : protruded epoxy is 1.0mm maximum . unit : mm 8.7 0.2 28.0 min 1.0 min 2.5 0.05 1.0 1.0 detail anode 0.5 -0.1 +0.2 1.0 max 1.8 0.2 5.0 0.2 5.9 0.2 0.5 0.05
-3- white lamp led LW551A <060915> rev. 0.3 ???? : qp-7-03-05 (rev.00) - x=0.31, y=0.31 x, y chromaticity coordinate [3] lm/w - 36 - ? elc optical efficiency v 4.0 3.5 - v f forward voltage [4] lm - 2.5 - v luminous flux 52 deg. 2 ? view angle 5 - - 3000 1750 a - i r reverse current (at v r = 5 v) max. typ. min. mcd i v [2] luminous intensity [1] unit value symbol item electro-optical characteristics ( t a = 25oc, i f =20ma ) absolute maximum ratings ( t a = 25oc ) mw 120 p d power dissipation v 5 v r reverse voltage oc 260oc for 10seconds [6] t s solder temperature oc -30 ~ 85 t opr operating temperature ma 100 i fp [5] forward peak pulse current oc -40 ~ 100 t stg storage temperature ma 30 i f dc forward current unit value symbol item notes : [1] ssc maintains a tolerance of 10% on intensity and power measurements. [2] i v is the luminous intensity output as measured with a cylinder. [3] correlated color temperature is derived from the cie 1931 chromaticity diagram. color coordinates measurement allowance is 0.01 [4] a tolerance of 0.05v on forward voltage measurements [5] t 0.1ms, d = 1/10 [6] no lower than 3mm from the base of the epoxy bulb.
-4- white lamp led LW551A <060915> rev. 0.3 ???? : qp-7-03-05 (rev.00) reliability tests 0/22 1 time 1kv, 1.5k ; 100pf esd (human body model) 0/40 100 cycles t a = -40oc (30min) ~ 100o (30min) (transfer time : 10sec, 1cycle = 1hr) thermal shock 0/22 100hrs t a = 85oc, rh = 85%, i f = 8ma temperature humidity operating 0/22 1000hrs t a = 85oc, rh = 85% temperature humidity storage 0/22 1000hrs t a = -40oc low temperature storage 0/22 1000hrs t a = 100oc high temperature storage 0/22 0/22 0/22 0/22 failures 1 time t s = 255 5oc, t = 10sec resistance to soldering heat 1000hrs t a = 85oc, i f = 8ma high temperature operating 1000hrs t a = -30oc, i f = 20ma low temperature operating 1000hrs t a = rt, i f = 30ma life test note condition item < judging criteria fo r reliability tests > lsl [2] x 0.5 v usl x 2.0 i r usl [1] x 1.2 v f notes : [1] usl : upper standard level [2] lsl : lower standard level.
-5- white lamp led LW551A <060915> rev. 0.3 ???? : qp-7-03-05 (rev.00) 2.4 2.8 3.2 3.6 4.0 4.4 4.8 5.2 1 10 100 forward current(ma) forward voltage [v] characteristic diagrams forward voltage vs. forward current forward current vs. relative intensity -40 -20 0 20 40 60 80 100 0 10 20 30 40 forward current i f [ma] ambient temperature ta[ o c] t a = 25oc t a = 25oc 0 20406080100 0 1 2 3 4 relative luminous intensity forward current [ma] directivity t a = 25oc, i f = 20ma 0.29 0.30 0.31 0.32 0.33 0.29 0.30 0.31 0.32 0.33 1ma 5ma 10ma 20ma 30ma 50ma 100ma y x ambient temperature vs. maximum forward current
-6- white lamp led LW551A <060915> rev. 0.3 ???? : qp-7-03-05 (rev.00) 0 20406080100 0.0 0.2 0.4 0.6 0.8 1.0 1.2 relative luminous intensity ambient temperature ta[ o c] directivity ambient temperature vs. relative intensity i f = 20ma t a = 25oc, i f = 20ma ambient temperature vs. forward voltage 400 500 600 700 0.0 0.5 1.0 relative emission intensity wavelength [nm] spectrum t a = 25oc, i f = 20ma 0 20406080100 2.4 2.6 2.8 3.0 3.2 3.4 forward voltage [v] ambient temperature ta[ o c] i f = 20ma -90 -60 -30 0 30 60 90 0.0 0.2 0.4 0.6 0.8 1.0 relative luminous intensity off axis angle [deg.]
-7- white lamp led LW551A <060915> rev. 0.3 ???? : qp-7-03-05 (rev.00) color ranks note : color coordinates measurement allowance is 0.01 0.305 0.276 0.248 0.267 y 0.283 0.296 0.280 0.264 x rank a 0.339 0.318 0.276 0.295 y 0.330 0.330 0.296 0.287 x rank c 0.360 0.339 0.295 0.305 y 0.330 0.330 0.287 0.283 x rank b 0.385 0.351 0.318 0.360 y 0.361 0.356 0.330 0.330 x rank d 0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.38 0.22 0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.38 0.40 15000k 9000k 5600k c d b a cie(y) cie(x) 4600k p la n k ia n lin e
-8- white lamp led LW551A <060915> rev. 0.3 ???? : qp-7-03-05 (rev.00) bin code description 4 c o forward voltage cie luminous intensity bin code a b c d color rank @ i f = 20ma 3.8 3.6 7 3.6 3.4 6 3.4 3.2 5 3.2 3.0 4 3.0 2.8 3 2.6 2.4 1 2.8 2.6 2 4.0 3.8 8 4.2 4.0 9 max. min. bin code forward voltage (v) @ i f = 20ma 7000 5000 q 5000 3500 p 2500 1750 n 3500 2500 o max. min. bin code luminous intensity (mcd) @ i f = 20ma not yet available ranks
-9- white lamp led LW551A <060915> rev. 0.3 ???? : qp-7-03-05 (rev.00) (1bag max/box) * inner box packing unit : mm 9 5 170 50 lxxxx qty : 500pcs lot : 200x.xx.xx xxx seoul semiconductor co., ltd ooo rank 480 325 2 7 0 * antistatic poly bag (35000pcs max/box) (70boxes max/box) * cardboard box (500pcs max/bag)
-10- white lamp led LW551A <060915> rev. 0.3 ???? : qp-7-03-05 (rev.00) soldering profile 1) wave soldering conditions / profile ? preliminary heating to be at 85oc(120 oc max) for 20 seconds(60 seconds max). ? soldering heat to be at 255 oc (260oc max) for 10 seconds ? soak time above 200 oc is 5 seconds 2) hand soldering conditions ? not more than 3 seconds at max. 350oc, under soldering iron . 3) caution ? the leds must not be repositioned after soldering. ? do not apply any stress to the lead particularly when heat. 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 0 50 100 150 200 250 300 temperature [ o c] time[s] preheat 20s (60s max) 85 oc(120 oc max) peak 10s 255 oc (260 oc max) note : in case the soldered products are reused in soldering process, we don?t guarantee the products.
-11- white lamp led LW551A <060915> rev. 0.3 ???? : qp-7-03-05 (rev.00) precaution for use 1 ) storage ? before opening the package a. avoid the absorption of moisture, we recommended to store the leds in a dry box(or desiccator) with a desiccant . otherwise, store them in the following environment: temperature : 5 ~30 humidity : 50% max. b. the products should be used in 3 months. it is recommended that the leds be used as soon as possible. ? after opening the package a. soldering should be done right after opening the package(within 24hrs). b. keeping of a fraction - sealing - temperature : 5 ~ 40 , humidity : less than 30% c. if the package has been opened more than 1week or the color of desiccant changes, components should be dried for 10-12hr at 60 5 ? any mechanical force or any excess vibration shall not be accepted to apply during cooling process to normal temp. after soldering. ? avoid quick cooling ? leadframes are silver plated spcc. the silver plate surface may be affected by environments which contains corrosive substanc es. please avoid conditions which may cause the leds to corrode, tarnish or discolor. 2) lead forming ? when the lead forming is required before sol dering , care must be taken to avoid any bending and mechanical stress. the stress to the base may damage the leds. ? when mounting the leds onto a pcb, the holes on the circuit board should be exactly aligned with the leads of the leds. ? it is recommended that tooling made to precisely form and cut the leads to length rather than rely on hand operating.
-12- white lamp led LW551A <060915> rev. 0.3 ???? : qp-7-03-05 (rev.00) 3) static electricity ? static electricity and surge voltage damage the leds. so 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 grounded properly. it is recommended that precautions should be taken against surge voltage to the equipment that mounts the leds. 4) heat generation ? thermal is one of the important parameters to design the end product. please consider the heat generation of the leds. ? the operating current should be decided after considering the ambient maximum temperature of leds. 5) others ? the color of the leds is changed slightly an operating current and thermal. ? anti radioactive ray design is not considered for the products listed here. ? gallium arsenide is used in some of the products listed in this publication. these products are dangerous if they are burned or smashed in the process of disposal. it is also dangerous to drink the liquid or inhale the gas generated by such products when chemically disposed. ? this device should not be used in any type of fluid such as water, oil, organic solvent and etc. when washing is required, ipa(isopropyl alcohol) should be used. ? when the leds are illuminating, operating current should be decided after considering the junction temperature. cf.) please refer ambient temperature vs. forward current graph on page 5 ? the appearance and specifications of the product may be modified for improvement without notice. seoul semiconductor co., ltd. 148-29, kasan-dong, keum chun-gu, seoul, korea tel : +82-2-3281-6269 fax :+82-2-858-5537 homepage : www.seoulsem icon.com www.zled.com e-store : www.zledstore.com e-mail : sscsale@seoulsemicon.com

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