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data sheet surface mount led tape and reel lead-free parts ligitek electronics co.,ltd. property of ligitek only pb LG-020SEF-CT-B01 doc. no : qw0905-lg- 020sef-ct-b01 rev. : a date : 15 - apr. - 2011 l dcc
features: 1. top view led. 2. white smt package. 3. leadframe package with individual 2 pin. 4.wide viewing angle. 5.soldering methods:ir reflow soldering. 6.feature of the device:more light due to higher optical efficiency;extremely wide viewing angle;ideal for backlighting and coupling in light guide. descriptions: the lg-020 smd has wide viewing angle and optimized light coupling by inter reflector,the low current requirement makes this device ideal for portable equipment or any other application where power is at a premium. applications: 1. telecommunication: indicator and backlighting in telephone and fax. 2. indicators. 3. switch lights. color ligitek electronics co.,ltd. property of ligitek only LG-020SEF-CT-B01 algainp orange device selection guide: part no material emitted part no. LG-020SEF-CT-B01 water clear lens page 1/11
recommended soldering pad dimensions note : the tolerances unless mentioned is ? 0.1mm,angle ? 0.5. unit=mm. note : 1.all dimension are in millimeter tolerance is ? 0.2mm unless otherwise noted. 2.specifications are subject to change wit hout notice. ligitek electronics co.,ltd. property of ligitek only page 2/11 part no. LG-020SEF-CT-B01 2.1 1.5 0.85 1.5 2.3 1.9 3.8 3.6 0.7 0.45 0.6 0.63 1.2 0.75 andoe polarity 0.7 0.63 cathode
note : 1.the forward voltage data did not including 0.1v testing tolerance. 2.the luminous intensity data did not including 15% testing tolerance. 2.6 ---- ---- ---- ---- typical electrical & optical characteristics (ta=25 j ) max. spectral line half-width luminous intensity dominant wavelength items viewing angle forward voltage 320 200 iv 2 ??f v f 17 ---- 1.7 ---- 120 ---- ---- 605 symbol min. typ. if=20ma mcd if=20ma if=20ma if=20ma if=20ma nm deg v nm condition unit ligitek electronics co.,ltd. property of ligitek only - 40 ~ + 85 - 40 ~ + 100 ratings storage temperature reverse current @5v operating temperature electrostatic discharge parameter peak forward current duty 1/11@10khz power dissipation forward current t opr tstg esd ir i fp pd symbol i f absolute maximum ratings at ta=25 j 10 2000 j j a v 50 120 90 sef ma ma mw unit page 3/11 part no. LG-020SEF-CT-B01
ligitek electronics co.,ltd. property of ligitek only page 4/11 luminous intensity classification iv(mcd) at20ma bin code min. max. part no. LG-020SEF-CT-B01 dominant wavelength classification
ligitek electronics co.,ltd. property of ligitek only typical electro-optical characteristics curve page5/11 part no. LG-020SEF-CT-B01 fig.6 directive radiation 50% 100% -60 x 25% 50% 75% 0 25% -30 x 0 x 75% 100% 60 x 30 x relative intensity@20ma 550 0.0 0.5 wavelength (nm) 600 650 500 ambient temperature( j ) fig.5 relative intensity vs. wavelength fig.3 forward voltage vs. temperature forward voltage@20ma normalize @25 j 1.0 -20 -40 0.8 1.0 0.9 1.1 1.2 0.5 relative intensity@20ma normalize @25 j -20 ambient temperature( j ) 80 60 40 20 0-40 100 0.0 80 60 0 20 40 100 fig.4 relative intensity vs. temperature 2.5 1.5 1.0 2.0 3.0 fig.1 forward current vs. forward voltage 100 forward current(ma) 0.1 1.0 1.0 10 1000 sef chip relative intensity normalize @20ma forward voltage(v) 1.5 2.0 2.5 3.0 1.0 0.0 1.5 1.0 0.5 2.0 2.5 forward current(ma) 10 100 1000 fig.2 relative intensity vs. forward current 3.0
aluminum moist-proof bag ligitek electronics co.,ltd. property of ligitek only packing specifications ?e LG-020SEF-CT-B01 part no. 12.0mm tape,7"reel description 0.4 0.6 0.8 0.2 0.8 0.6 0.4 0.2 label note : the tolerances unless mentioned is ? 0.1mm,unit=mm. carrier type dimensions 3000 pcs quantity/reel label page 6/11 part no. LG-020SEF-CT-B01 2 4 4 1.75 0.72 12 0.279 4 5.5 polarity
bin : luminous intensity ligitek electronics co.,ltd. property of ligitek only 16.01.0 60.01.0 13.01.0 r 1 3 . 5 1 . 0 1781.5 2.00.5 0.8 0.6 0.4 0.2 reel dimensions 0.2 0.4 0.6 0.8 ligitek electronics co., ltd. bin/hue : qty(pcs): s/23 3000 lot : part : gs1-0b0168 pb label expl anation page 7/11 part no.LG-020SEF-CT-B01 LG-020SEF-CT-B01 hue : dominant wavelength
1. 4 bag / inner box 2. inner box size : l x w x h 23cm x 8.5cm x 26cm l h w box explanation ligitek electronics co.,ltd. property of ligitek only page 8/11 part no.LG-020SEF-CT-B01 3. 10 inner boxes / carton 4. carton size : l x w x h 58cm x 34cm x 35cm l w h
2.when soldering,do not put stress on the leds during heating. 1.reflow soldering should not be done more than two times. 3.after soldering,do not warp the circuit board. note: above 220c 60 sec.max. 120 ~ 180 sec 3 pb-free reflow solder preheat 180~200c 120 sec.max. 1~5c/sec 1~5c/sec 1. hand solder basic spec is ?? 320 j 3 sec one time only. 120 ~ 150 j 2. wave solder preheat soldering heat max. 260 j 260c max. 10sec.max 6c/sec 245 ? 5 j within 5 sec ligitek electronics co.,ltd. property of ligitek only recommended soldering conditions page 9/11 part no. LG-020SEF-CT-B01
precautions for use: storage time: 1.the operation of temperatures and rh are : 5 j ~35 j ,rh60%. 2.once the package is opened, the products should be used within a week. otherwise, they should be kept in a damp proof box with descanting agent. considering the tape life, we suggest our customers to use our pr oducts within a year(from production date). 3.if opened more than one week in an atmos phere 5 j ~ 35 j ,rh60%, they should be treated at 60 j 5 j fo r 15hrs. cleaning: use alcohol-based cleaning solvents such as isopropyl alcohol to cl ean the led. esd(electrostatic discharge): static electricity or power surge will damage the led. use of a conductive wrist band or anti-electrosatic glove is recommended when handing these led. all devices, equipment and machinery must be pr operly grounded. (a) recommended circuit. (b) the difference of brightness between led could be found due to the vf-if characteristics of led. drive method: led is a current operated device, and therefore, requirer some kind of current limiting incorporated into the driver circuit. this current limiting typically takes the form of a current limiting resistor placed in series with the led. consider worst case voltage variations than could occur across the current limiting resistor. the forwrd current should not be allowed to change by more than 40% of its desired value. circuit model a led led circuit model b ligitek electronics co.,ltd. property of ligitek only page 10/11 part no. LG-020SEF-CT-B01
(1)test items and results reliability test: 1.ir-reflow in-board, 2 times 1.ir-reflow in-board,2 times 1.ta=under room temperature as per data sheet maximum rating. 2.if=20ma 3.t=1000 hrs test condition 1.u.s.l.:upper standard level. 2.l.s.l.:lower standard level. note: j thermal shock test -40 j 5 (2)criteria for judging the damage environmental test temperature cycling reflow soldering test 1 cyeles 25 0 30mins ~ j 2.10 1.105 5mins 30mins ~ - j j 40 1.t.sol=260 j? 5 j 2.dwell time= 10max. min) ( cycles 3.total 30 ( 100 min) 30 endurance test classification high temperature high humidity storage test low temperature storage test %~95 hrs j j 500 3.rh=90 8 2.ta=105 4.t= 2.ta= 5 % 2hrs & j 5 j 5 1.ta=-40 j? 5 j 2.t=1000 hrs operating life test high temperature storage test test item hrs j 500 1.ta=105 2.t= j 5 22 22 22 22 22 22 22 sample size ligitek electronics co.,ltd. property of ligitek only page11/11 criteria for judgement luminous intensity reverse current forward voltage vr=5v if=20ma if=20ma test conditions vf iv ir item symbol - l.s.l x 0.5 - min. u.s.l x1.2 - u.s.l x2.0 max. part no. LG-020SEF-CT-B01

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