ASDL-4770 high performance side look algaas/gaas infrared (940nm) lamp data sheet description ASDL-4770 is a high performance infrared emitter that utilizes algaas on gaas led technology. it is optimized for high efciency at emission wavelength of 940nm and is designed for applications that require high radiant intensity, low forward voltage at wide viewing angle. the emitter is encapsulated in side look package with spherical side view lens and is matched to asdl-6770 for maximum sensitivity. features ? side look package ? 940nm wavelength ? low forward voltage ? narrow viewing angle ? good mechanical and spectral matching to asdl-6770 infrared phototransistor detector ? lead free and rohs compliant ? available in tape & reel applications ? industrial infrared monitoring applications ? consumer electronics (optical mouse) ? infrared source for optical counters and card readers ? photo-interrupters ? on-of switch / beam interruption ? light barriers
ordering information part number lead form color packaging shipping option ASDL-4770-c ASDL-4770-c4 straight clear tape & reel bulk 4000pcs 0kpcs / carton package dimensions notes: 1. all dimensions are in millimeters (inches) 2. tolerance is + 0.25mm (.010) unless otherwise noted 3. protruded resin under fange is 1.0mm (.039) max 4. lead spacing is measured where leads emerge from package 5. specifcations are subject to change without notice
absolute maximum ratings at 25 c parameter symbol min. max unit reference peak forward current i fpk a 00pps continuous forward current i fdc 50 ma power dissipation p diss 75 mw reverse voltage v r 5 v operating temperature t o -40 85 c storage temperature t s -55 00 c led junction temperature t j 0 c lead soldering temperature 60 c for 5 sec electrical characteristics at 25 c parameter symbol min. typ. max. unit condition forward voltage v f . .6 v i fdc =0ma reverse voltage v r 5 v i r =00ua thermal resistance, junction to ambient r q ja 50 c/w optical characteristics at 25 c parameter symbol min. typ. max. unit condition radiant on-axis intensity i e . mw/sr i fdc =0ma viewing angle / 40 deg peak wavelength pk 940 nm i fdc = 0ma spectral width ? 50 nm i fdc = 0ma optical rise time tr us i fpk =00ma duty factor=50% pulse width= 0us optical fall time tf us i fpk =00ma duty factor=50% pulse width= 0us
foward current (ma) figure 5. relative radiant intensity vs. forward current forward voltage (v ) figure 3. forward current vs. forward voltage figure 4. relative radiant intensity vs. ambient temperature wavelength (nm ) figure 1. spectral distribution forward current (ma ) output power relative t o value at if=20ma relative radiant intensit y 0 1. 2 1. 6 2 .0 2. 4 2. 8 50 40 30 20 10 0 0 20 40 60 80 10 0 5. 0 4. 0 3. 0 2. 0 1. 0 0 0.5 0.3 0.1 0.2 0.4 0.6 0.7 0.8 0.9 1. 0 0 0.5 1. 0 1040 940 840 10 20 30 40 50 60 relative radiant intensit y value at if=20ma output power relative t o 0 20 10 o o o 80 o 90 o 70 60 o o 50 40 o o 30 o 0 -2 0 0.6 0.2 0.4 0 0.8 1. 0 1. 2 80 60 40 20 0 forward current if (ma) figure 2. forward current vs. ambient temperature ambient temperature ta ( c ) o 10 0 -40 0 -20 20 60 40 80 ambient temperature ta ( c ) o figure 6. radiation diagram typical electrical/optical characteristics curves (t a =25?c unless otherwise indicated) for company and product information, please go to our web site: www.liteon.com or http://optodatabook.liteon.com/databook/databook.aspx data subject to change. copyright ? 007 lite-on technology corporation. all rights reserved.
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