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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-020urfs/t-b01 rev. : a date : 13 - mar. - 2017 lg-020urfs/t-b01 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-020urfs/t-b01 algainp red device selection guide: part no material emitted part no. lg-020urfs/t-b01 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-020urfs/t-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 cathode polarity 0.7 0.63 anode
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. 2.6 ---- ---- ---- ---- typical electrical & optical characteristics (ta=25 ) max. spectral line half-width luminous intensity dominant wave items viewing angle forward voltage 140 80 iv 2 1/2 d v f 20 ---- 1.7 ---- 110 ---- ---- 625 symbol min. typ. if=5ma mcd if=5ma if=5ma if=5ma if=5ma 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-020urfs/t-b01 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 10 2000 50 130 90 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) at5ma bin code min. max. part no. lg-020urfs/t-b01 q 80 125 r125200 s 200 320 t 320 500
ligitek electronics co.,ltd. property of ligitek only page 5/1 1 part no. lg-020urfs/t-b01 typical electro-optical characteristics curve fig.6 directive radiation fig.3 forward voltage vs. temperature fig.5 relative intensity vs. wavelength ambient temperature( ) relative intensity@5ma wavelength (nm) forward voltage@5ma normalize @25 fig.4 luminous intensity vs. temperature ambient temperature( ) luminous intensity@5ma normalize @25 forward voltage(v) fig.1 forward current vs. forward voltage forward current(ma) forward current(ma) luminous intensity normalize @5ma 0 0 50 100 150 0 50 100 150 0.0 1.0 2.0 3.0 -40 -20 0 20 40 60 0.5 1.0 1.5 2.0 80 100 0.94 -20 -40 40 20 0 80 100 60 0.8 0.0 0.2 0.4 0.6 1.0 1.2 urfs chip fig.2 luminous intensity vs. forward current 5.0 4.0 6.0 2.5 3.0 0.96 0.98 1.00 1.02 1.04 1.06 0 550 600 650 700 0.5 1.0 50% 100% -60 25% 50% 75% 0 25% -30 0 75% 100% 60 30
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-020urfs/t-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. 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-020urfs/t-b01
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-020urfs/t-b01 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 Q
reliability test: ! ligitek electronics co.,ltd. property of ligitek only page11/11 part no. lg-020urfs/t-b01 environmental test 1.t=260c max. 10sec.max. 2. 6 min ir reflow 1.100c5c ~

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