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data sheet surface mount led tape and reel lead-free parts ! ligitek electronics co.,ltd. property of ligitek only pb doc. no : qw0905-lg- 020dbk-ct rev. : c date : 29 - mar. - 2017 LG-020DBK-CT l dcc
features: 1. side 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-020DBK-CT ingan blue device selection guide: part no material emitted part no. LG-020DBK-CT water clear lens page 1/11
recommended soldering pad dimensions note : the tolerances unless mentioned is d 0.1mm,angle d 0.5. unit=mm. note : 1.all dimension are in millimeter tolerance is d 0.2mm unless otherwise noted. 2.specifications are subject to change without notice. ! ligitek electronics co.,ltd. property of ligitek only page 2/11 part no. LG-020DBK-CT 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. 3.the dominant wavelength data did not including 1nm testing tolerance. 3.6 ---- ---- ---- ---- typical electrical & optical characteristics (ta=25 : ) max. spectral line half-width luminous intensity dominant wavelength items viewing angle forward voltage 200 125 iv 2 1/2 d ? v f 30 ---- 2.8 ---- 110 ---- ---- 455 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 absolute maximum ratings at ta=25 : page 3/11 part no. LG-020DBK-CT power dissipation forward current electrostatic discharge operating temperature reverse current @5v peak forward current duty 1/11@10khz storage temperature - 40 ~ + 85 t opr tstg - 40 ~ + 100 symbol pd i fp esd ir i f parameter 50 500 30 108 100 ratings c? c? ma a v unit mw ma
! ligitek electronics co.,ltd. property of ligitek only page 4/11 luminous intensity classification iv(mcd) at20ma bin code min. max. part no. LG-020DBK-CT dominant wavelength classification d(nm) at 20ma bin code min. max. forward voltage classification vf(v) at20ma min. bin code max. 500 320 u t 800 500 125 r200 200 s320 0i 450 453 0h 453 456 0g 456 459 0f 459 462 12.82.9 22.93 333.1 43.13.2 5 3.2 3.3 63.33.4 73.43.5 83.53.6
! ligitek electronics co.,ltd. property of ligitek only page 5/1 1 part no. LG-020DBK-CT typical electro-optical characteristics curve 0.5 relative intensity@20ma normalize @25 : forward voltage@20ma normalize @25 : 20 ambient temperature( : ) ambient temperature( : ) 0 -20 -40 0.8 0 -40 -20 100 80 60 40 20 0.0 60 100 80 40 fig.4 relative intensity vs. temperature 2.5 1.0 0.9 1.1 1.5 1.0 2.0 fig.3 forward voltage vs. temperature 1.2 3.0 relative intensity normalize @20ma forward current(ma) 110 0.0 0.5 1.0 1.5 2.0 100 1000 fig.2 relative intensity vs. forward current 2.5 3.0 dbk chip fig.5 relative intensity vs. wavelength relative intensity@20ma wavelength (nm) 400 450 500 0.0 0.5 1.0 550 -30 dc forward current [ma] 10 0 20 -20 0 -10 10 40 30 20 50 60 70 90 80 100 ambient temperature ta ( : ) 30 40 50 60 70 80 fig.6 forward current vs. temperature forward current(ma) forward voltage(v) fig.1 forward current vs. forward voltage 2.0 100 1.0 0.1 10 1.0 1000 3.0 4.0 5.0
aluminum moist-proof bag ! ligitek electronics co.,ltd. property of ligitek only packing specifications ? LG-020DBK-CT 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 d 0.1mm,unit=mm. carrier type dimensions 3000 pcs quantity/reel label page 6/11 part no. LG-020DBK-CT 1.5 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 ? 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. !cjo0 ivf! ; !ruz)qdt*; !t01i !4111 !mpu!; !qbsu!; ! ht224c1279 pb label explanation page 7/11 part no.LG-020DBK-CT ! mh.131ecl.du hue : dominant wavelength vf : forward voltage !wg;3/:.4/1
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-020DBK-CT 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. 3 pb-free reflow solder preheat 180~200c 120 sec.max. 1~5c/sec 1~5c/sec 1. hand solder basic spec is 320 : 3 sec one time only. 260c max. 10sec.max 6c/sec ! ligitek electronics co.,ltd. property of ligitek only recommended soldering conditions page 9/11 part no. LG-020DBK-CT
cleaning: use alcohol-based cleaning solvents such as isopropyl alcohol to clean 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 properly 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-020DBK-CT precautions for use: storage time: 1. calculated shelf life before opening is 12 months at < 30c and < 90% relative humidity (rh) 2. after bag is opened, devices which will be subjected to reflow soldering or other high temperature processes must be a) assemblied within 168 hours in an environment of ! 30c / 60% rh, or b) stored at ambient of 10% rh or less 3. devices are required baking before assembly if: a) humidity indicator card reads >10% (for level 2a -5a) or >60% (for level 2) at ambient temperature 23 d 5c b) 2.a) or 2.b) doesn't meet 4. if baking is required, devices should be baked for >72 hours at 605c / 5% rh.performing baking only once, and using the baked devices within 72 hours.
reliability test: ! ligitek electronics co.,ltd. property of ligitek only page11/11 part no. LG-020DBK-CT environmental test 1.t=260c max. 10sec.max. 2. 6 min ir reflow 1.100c5c 33 -40c5c 30mins / 5mins / 30mins 2.100 cyeles temperature cycling endurance test classification 1.ta=85c 2.rh=85% 3.t=1000hrs(-24hrs,+72hrs) 1.ta=-40c5c 2.t=1000 hrs (-24hrs,+72hrs) 1.ta=100c5c ~ -40c5c 20min/ 10sec / 20min 2.total 100 cycles high temperature high humidity storage test thermal shock test low temperature storage test 1.ta=100c5c 2.t=1000 hrs (-24hrs,+72hrs) 1.ta=25c 2.if=20ma 3.t=1000 hrs (-24hrs,+72hrs) high temperature storage test test item operating life test test condition sample size 22 22 22 22 22 22 22

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