====================================================================== znse white led ====================================================================== RLZS-1608 (chip type led, 1.6mm x 0.8mm x 0.6mm) 1. specification: 1.1 absolute maximum ratings at ta=25 ? parameter symbol value unit power dissipation p d 60 mw dc forward current i f 20 ma peak forward current i fpm 20 ma reverse voltage v r 10 v operating temperature range t opt -20 ? +75 ? storage temperature range t stg -40 ? +100 ? notes) ~ the half-life of the optical output at 25 ? is over 3,000hrs at the above if condition. ~ recommended if at 75 ? is 2.5ma. the half-life under such condition is over 1,000hrs. ~ the half-life of the led is inversely proportional to the square of the operating current. the if-ta curve is also shown in sheet 1. 1.2 typical electrical/optical properties at ta=25 ? parameter symbol condition min. typ. max. unit if=20ma 2.45 2.65 2.90 forward voltage vf if=1ma 2.34 2.37 2.40 v reverse voltage vr ir=1 a 5 >30 >30 v esd threshold v esd 100pf/1.5k
2 8 kv peak wavelength 1 p1 481 484 487 peak wavelength 2 p2 if=20ma 595 605 615 nm rank a 250 300 350 rank n 150 200 250 luminous intensity rank s iv if=20ma 50 100 150 mcd viewing angle 2 1/2 if=20ma 130 150 180 degree notes ~ peak wavelength 1 and 2 refers to emissions from the active layer and the substrate, respectively. white color is obtained by mixing these two light emissions. ~ rank s type employs optical diffuser inside epoxy lens. ~ if-vf, po-if, and po-ta characteristics of a typical white led is shown in sheet 2. ~ a typical viewing angle data is shown in sheet 3.
1.3 white color rank classification of chromaticity at ta=25
(if=20ma) rank b rank p x 0.20 0.08 0.23 0.285 x 0.285 0.23 0.345 0.34 y 0.20 0.28 0.33 0.25 y 0.25 0.33 0.37 0.28 rank y rank o x 0.34 0.345 0.43 0.39 x 0.39 0.43 0.56 0.58 y 0.28 0.37 0.395 0.31 y 0.31 0.395 0.44 0.42 notes ~ (x,y) is chromatic coordinates in cie co lor diagram. rank areas are shown in sheet 4. ~ tolerance of chromaticity is +/-0.02. ~ the correlated color temperature for rank b varies from 12,000k to infinity. for rank p, it varies from 5,000k to 12,000k. for rank y, it varies from 3,000k to 5,000k. for rank o, it varies from 1,600k to 3,000k. ~ the narrower color ranks which the customer re quires can be offered by a special contract between the two parties. ~ the color of white led is changed a little by an operating current ~ a typical light emission spectrum of the white led (rank p) is shown in sheet 1. 2 outline dimensions and materials please refer to sheet 5. material as follows; chip: zinc selenide (znse) and znse-related compound resin: epoxy resin substrate: fiber-reinforced epoxy 3 product name indication ~ product number the first seven characters show model number. followings are representative of ranks. rl zs-1608 ? - ranking by luminous intensity ? - ranking by color ~ lot number the first five characters show model number. followings are representative of ranks. yymm- xxx ? yy - year (02 for 2002, 03 for 2003,?.) mm - month (01 for jan., 02 for feb., ?.) - epitaxial chamber suffix (l,?.) xxx - product number (representative lot number of epitaxial growth) ? - substrate dopant suffix (p for aluminum, c for iodine)
4 reliability 4.1 test item and result test item test condition result consecutive operating lifetime test if=20ma / dc, ta=25 ? , t=1,000hours 0/18 high temperature storage lifetime test ta=85 ? , t=1,000hours 0/18 temperature humidity storage lifetime test ta=60 ? , rh=90%, t=1,000hours 0/18 reflow heat test t=240 ? (max), t=10sec. reflow soldering 0/18 note) ~ the reliability guarantee criterion is defined by mil-s-19500h. the data shows ltpd is 15%. 4.2 criteria for judging the damage criteria for judgement item symbol test conditions min. max. forward voltage vf if=20ma - u.s.l.x1.1 luminous intensity iv if=20ma l.s.l.x0.5 - note) ~ u.s.l.: upper standard level., l.s.l: lower standard level. 5 cautions care should be taken after due consideration when using leds. 5.1 storage ~ store at room temperature (25 ? 3 ? ) and under low humidity (rh lower than 50%). 5.2 static electricity ~ static electricity or surge voltage damages the leds. it is recommended to use a wristband or an anti-electrostatic gl ove when handling the leds. 5.3 soldering conditions ~ reflow soldering should be performed at the peak temperature under 240 ? and less than 10 seconds. ~ hand repair soldering should be performed at temperatures under 300 ? and less than 3 seconds. (one time only) 5.4 cleaning ~ it is recommended to use isopropyl alcohol as a solvent for cleaning the leds. when using other solvents, it should be confirmed before hand whether the solvents dissolve the resin or not. freon solvent should not be used to clean the leds because of worldwide regulations. ~ do not clean the leds by the ultrasonic. when it is absolutely necessary, the influence of ultrasonic cleaning on the leds depends on the factors such as ultrasonic power and the assembled condition. before cleaning pre-test should be done to confirm will not cause any damage to the leds.
5.5 others ~ care must be taken to ensure that the reverse voltage will not exceed the absolute maximum rating when using the leds with matrix drive. ~ these leds described in this spec. sheets are intended to be used for ordinary electronic equipment. potential applica tions of these leds include displays or backlighting for in-door instruments or mobile gear. ~ any conditions for pulse operation for led over i fpm are not recommended. ~ the formal specifications must be exchang ed and signed by both parties before large volume purchase begins. ~ the appearance and specifications of the product may be modified for improvement without notice.
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