sli-325 series led lamps direct mount low current circular leds lamps ( 3.2mm) sli-325 series the sli-325 series are small 3.2mm leds with a lead pitch of 5mm which can be directly mounted on a printed circuit board. three colors and two lens types are available for a total of six types, and they are suitable for use in a wide variety of applications. ! ! ! ! features 1) can be directly mounted on a printed circuit board. 2) available on tape to allow mounting using a 5mm pitch machine without lead forming. 3) a low overall height of 5.5mm makes it possible to design a slim unit. 4) large flange eliminates wobbling after mounting (stable before and after soldering). 5) high reliability. ! ! ! ! external dimensions (units : mm) tolerances are 0.2 unless otherwise noted: 3.2 3.3 1.0max. cathode r1.6 (5.0) 3.8 1.0 1.0 6.0 0.3 18min. 5.5 0.3 0.4 (c0.2) (2.2) (2) 4 ? 0.5 ! ! ! ! selection guide emitting color lens colored duffused 1) colored clear 2) red orange yellow sli-325urt31w sli-325urct31w sli-325dut31w sli-325yyt31w sli-325dct31w sli-325yct31w 1) colored diffused 2) colored transparent note : this product is only available on tape.
sli-325 series led lamps ! ! ! ! absolute maximum ratings (ta = 25 c) parameter symbol p d i f i fp v r topr tstg ? red sli-325urt31w sli-325urct31w sli-325dut31w sli-325dct31w sli-325yyt31w sli-325yct31w orange yellow unit mw ma ma v ?c ?c ? ? 25~ + 85 ? 30~ + 100 260 c 5seconds maximum 48 20 60 ? 4 ? pulse width 100 s duty 1 / 5 power dissipation forward current peak forward current reverse voltage operating temperature storage temperature soldering temperature ! ! ! ! electrical and optical characteristics (ta = 25 c) symbol unit parameter red 2 1/2 ? ? nm p ? nm i r ? a v f conditions i f = 20ma i f = 20ma v r = 4v i f = 20ma ? min. 18 630 ? 1.85 typ. ? ? 100 2.4 max. orange ? ? ? ? min. 16 611 ? 1.9 typ. ? ? 100 2.4 max. yellow ? ? ? ? min. 15 590 ? 1.9 typ. ? ? 100 2.4 max. ? deg 40 ?? 40 ?? 40 ? ? 40 ?? 40 ?? 40 ? v viewing angle spectral line half width peak wavelength reverse current forward voltage diffused transparent ! ! ! ! luminous intensity vs. wavelength 1.0 0.8 0.6 0.4 0.2 0 500 550 600 650 700 750 axial luminous intensity wavelength : p (nm) fig.1 yellow orange red ! ! ! ! luminous intensity unit color p yellow orange red 630 611 590 type sli-325urt31w min. max. mcd sli-325urct31w sli-325dut31w sli-325dct31w sli-325yyt31w sli-325yct31w 36 36 36 36 36 36 36 36 36 36 36 36 typ. 100 100 100 100 100 100 100 100 100 100 100 100 ? ? ? ? ? ? ? ? ? ? ? ? note : 1. measured at i f =20ma 2. the specification is subject to be without notice. we would like you to refer to the latest specification in use.
sli-325 series led lamps ! ! ! ! directional pattern angle ( ) relative luminous intensity ( % ) fig.2 0 50 100 50 100 0 10 10 20 20 30 40 50 60 70 80 90 30 40 50 60 70 80 90 transparent diffused ! ! ! ! electrical characteristic curves (urc, ur, dc, du, yc, yy) 100 10 1 0.1 1.5 1.0 2.0 2.5 3.0 1000 forward voltage : v f (v) forward current : i f (ma) ta=25 c fig.3 forward current vs. forward voltage 1.6 1.4 1.2 1.0 0.8 0.6 0.4 ? 20 0 20406080 relative luminous intensity case temperature : tc ( c) urc, ur yc, yy, dc, du i f = 20ma fig.4 luminous intensity vs. case temperature 1 0.1 0.01 0.1 1 10 100 10 forward current : i f ( ma ) relative luminous intensity ta = 25 c fig.5 luminous intensity vs. forward current 1 3 2 4 6 5 1 1000 100 10 10000 100000 pulse duration : tw ( s) ratio of maximum tolerable peak current to maximum tolerable dc current i f peak m ax. i f m ax. 100hz 200hz 500hz 1khz 2khz 5khz 10khz 20khz 50khz fig.6 ratio maximum tolerable peak vs. pulse duration 30 10 20 0 30 20 40 50 60 70 80 90 ambient temperature : ta ( c) maximum forward current : i f m ax . (ma) fig.7 maximum forward current vs. ambient temperature (derating)
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