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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- 020dgm/t rev. : a date : 10 - mar. - 2017 lg-020dgm/t 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-020dgm/t ingan green device selection guide: part no material emitted part no. lg-020dgm/t 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 without notice. ligitek electronics co.,ltd. property of ligitek only page 2/11 part no. lg-020dgm/t 2.1 1.5 0.85 1.5 package dimensions andoe polarity cathode 2.3 1.9 3.8 3.6 0.7 0.45 0.6 0.63 1.2 0.75 0.7 0.63
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. 3.2 ---- ---- ---- ---- typical electrical & optical characteristics (ta=25 ) max. spectral line half-width luminous intensity dominant wavelength items viewing angle forward voltage 300 125 iv 2 1/2 d v f 36 ---- 2.6 ---- 110 ---- ---- 530 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 page 3/11 part no. lg-020dgm/t 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 * ambient test condition : ta=25 c
ligitek electronics co.,ltd. property of ligitek only page 4/11 luminous intensity classification iv(mcd) at5ma bin code min. max. part no. lg-020dgm/t dominant wavelength classification d(nm) at 5ma bin code min. max. forward voltage classification vf(v) at5ma min. bin code max. 1q 525 528 1r 528 531 1s 531 534 1t 534 537 12.62.7 22.72.8 32.82.9 42.93 533.1 63.13.2 r125200 s 200 320 t 320 500 u500800
ligitek electronics co.,ltd. property of ligitek only page 5/11 part no. lg-020dgm/t fig.6 directive radiation typical electro-optical characteristics curve fig.5 relative intensity vs. wavelength relative intensity@5ma wavelength (nm) fig.4 relative intensity vs. temperature ambient temperature( ) forward voltage(v) fig.1 forward current vs. forward voltage forward current(ma) forward current(ma) fig.2 relative intensity vs. forward current relative intensity normalize @5ma 1.0 0.1 1.0 10 100 1000 1.0 10 100 1000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 450 550 600 0.0 0.5 1.0 2.0 3.0 4.0 5.0 -20 -40 40 20 0 80 100 60 2.0 0.0 0.5 1.0 1.5 2.5 3.0 500 dgm chip fig.3 forward voltage vs. temperature ambient temperature( ) forward voltage@5ma normalize @25 -40 -20 0 20 40 60 1.0 1.1 1.2 80 100 0.8 0.9 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 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): r/1r 3000 lot : part : gs11680168 pb label explanation page 7/11 part no.lg-020dgm/t lg-020dgm/t hue : dominant wavel ength vf : forward voltage vf:2.9-3.0
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-020dgm/t 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-020dgm/t
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-020dgm/t 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-020dgm/t environmental test 1.t=260c max. 10sec.max. 2. 6 min ir reflow 1.100c5c ~

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