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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-020virr/t50 rev. : a date : 12 - may. - 2017 lg-020virr/t50 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-020virr/t50 gaalas infrared device selection guide: part no material emitted part no. lg-020virr/t50 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-020virr/t50 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 andoe
typical electrical & optical characteristics (ta=25 ) ligitek electronics co.,ltd. property of ligitek only absolute maximum ratings at ta=25 page 3/11 part no. lg-020virr/t50 - 40 ~ + 85 - 40 ~ + 100 ratings storage temperature operating temperature parameter t opr tstg symbol 5 a 80 50 100 vir ma ma mw unit peak forward current (300pps,10 s pulse) reverse voltage forward current vr i f power dissipation pd i fp note : 1.the radiant intensity data did not including 15% testing tolerance. parameter forward voltage spectral line half width peak emission wavelength radiant intensity viewing angle 110 deg 50 940 if=50ma nm v if=50ma nm mw/sr if=50ma if=50ma symbol min. typ. max. unit condition v f 2 1/2 p ie 4.2 5.5 ---- ---- ---- ---- ---- 1.1 ---- ---- 1.6 ---- if=50ma
! ligitek electronics co.,ltd. property of ligitek only page 4/11 part no. lg-020virr/t50 ie(mw/sr) at 20ma bin code min. max. q 4.2 5.5 r 5.5 7.2 s7.2 9.4 t 9.4 12
! ligitek electronics co.,ltd. property of ligitek only page 5/1 1 part no. lg-020virr/t50 typical electro-optical characteristics curve 0.4 relative intensity@50ma normalize @25
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 l h w box explanation ! ligitek electronics co.,ltd. property of ligitek only page 8/11 part no.lg-020virr/t50 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-020virr/t50
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-020virr/t50 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-020virr/t50 environmental test 1.t=260c max. 10sec.max. 2. 6 min ir reflow 1.100c5c ~

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