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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-a01 rev. : a date : 26 - feb. - 2015 LG-020DBK-A01 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 ang le 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-A01 ingan blue device selection guide: part no material emitted part no. LG-020DBK-A01 water clear lens page 1/11
recommended soldering pad dimensions note : the tolerances unless mentioned is ligitek electronics co.,ltd. property of ligitek only page 2/11 part no. LG-020DBK-A01 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 ---- ---- 456 ---- typical electrical & optical characteristics (ta=25 ligitek electronics co.,ltd. property of ligitek only absolute maximum ratings at ta=25 c c unit mw ma 115 led junction temperature tj
! 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-A01 dominant wavelength classification
ligitek electronics co.,ltd. property of ligitek only page 5/1 1 part no. LG-020DBK-A01 fig.6 directive radiation 50% 100% -60 25% 50% 75% 0 25% -30 0 75% 100% 60 30 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 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 ?
bin : luminous intensity ! ligitek electronics co.,ltd. property of ligitek only 16.01.0 60.01.0 13.01.0
1. 4 bag / inner box 2. inner box size : l x w x h 23cm x 8.5cm x 26cm box explanation ! ligitek electronics co.,ltd. property of ligitek only page 8/11 part no.LG-020DBK-A01 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 Q ligitek electronics co.,ltd. property of ligitek only recommended soldering conditions page 9/11 part no. LG-020DBK-A01
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-A01 precautions for use: storage time: 1.the operation of temperatures and rh are : 5 c~30 c c c
reliability test: ! ligitek electronics co.,ltd. property of ligitek only page11/11 part no. LG-020DBK-A01 environmental test 1.t=260c max. 10sec.max. 2. 6 min ir reflow 1.100c5c ~

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