features ? = 940 nm chip material =gaas with algaas window package type: t-1 3/4 (5mm lens diameter) matched photosensor: qsd122/123/124 wide emission angle, 55 high output power package material and color: clear, untinted, plastic ideal for remote control applications anode cathode schematic 0.195 (4.95) 0.040 (1.02) nom 0.100 (2.54) nom 0.050 (1.25) 0.800 (20.3) min 0.305 (7.75) 0.240 (6.10) 0.215 (5.45) 0.020 (0.51) sq. (2x) reference surface cathode QED633 qed634 ? ? 2001 fairchild semiconductor corporation ds300207 6/8/01 1 of 4 www.fairchildsemi.com notes: 1. dimensions for all drawings are in inches (mm). 2. tolerance of ?.010 (.25) on all non-nominal dimensions unless otherwise specified. description the qed634 is a 940 nm gaas / algaas led encapsulated in a clear untinted, plastic t-1 3/4 package. plastic infrared light emitting diode package dimensions
1. derate power dissipation linearly 2.67 mw/ c above 25 c. 2. rma flux is recommended. 3. methanol or isopropyl alcohols are recommended as cleaning agents. 4. soldering iron 1/16 ? (1.6mm) minimum from housing. 5. pulse conditions; tp = 100 ?, t = 10 ms. parameter test conditions device symbol min typ max units peak emission wavelength i f = 20 ma all pe ? 940 ? nm spectral bandwidth i f = 20 ma all ? 50 ? nm temp. coefficient of pe i f = 100 ma all tc ? 0.2 ? nm/k emission angle i f = 100 ma all 2 1/ 2 ? 55 ? deg. forward voltage i f = 100 ma, tp = 20 ms all v f ?? 1.6 v temp. coefficient of v f i f = 100 ma all tc v ? -1.5 ? mv/k reverse current v r = 5 v all i r ?? 10 a radiant intensity i f = 100 ma, tp = 20 ms QED633 i e 15 25 ? mw/sr qed634 20 25 ? temp. coefficient of i e i f = 20 ma all tc i ? -0.6 ? %/k rise time i f = 100 ma all t r ? 1000 ? ns fall time all t f ? 1000 ? electrical / optical characteristics (t a =25 c) parameter symbol rating unit operating temperature t opr -40 to +100 c storage temperature t stg -40 to +100 c soldering temperature (iron) (2,3,4) t sol-i 240 for 5 sec c soldering temperature (flow) (2,3) t sol-f 260 for 10 sec c continuous forward current i f 100 ma reverse voltage v r 5v power dissipation (1) p d 200 mw peak forward current i fp 1.5 a absolute maximum ratings (t a = 25 c unless otherwise specified) QED633 qed634 plastic infrared light emitting diode www.fairchildsemi.com 2 of 4 6/8/01 ds300207
typical performance curves tbd QED633 qed634 plastic infrared light emitting diode fig. 2 forward voltage vs. ambient temperature fig. 1 normalized radiant intensity vs. forward current t a - ambient temperature (? c) i f - forward current (ma) v f - forward voltage (v) i e - normalized radiant intensity -40 -20 0 20 40 60 80 100 0.0 0.5 1.0 1.5 2.0 i f =100ma i f =10ma i f = 50ma i f =20ma i f pulsed t pw = 100 s duty cycle = 0.1% fig. 4 radiation diagram fig. 3 normalized radiant intensity vs. wavelength 0.0 0.2 0.4 0.6 0.8 1.0 0.0 0.2 0.4 0.6 0.8 1.0 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 normalized intensity ? (nm) 800 850 900 950 1000 1050 0 0.2 0.4 0.6 0.8 1.0 1000 1500 100 10 1 0.01 0.1 1 10 i f - forward current (ma) fig. 5 forward current vs. forward voltage v f - forward voltage (v) 123 4 1 10 100 1000 t a = 25 ? c normalized to: i f = 100 ma t a = 25 ? c t pw = 100 s ds300207 6/8/01 3 of 4 www.fairchildsemi.com
disclaimer fairchild semiconductor reserves the the right to make changes without further notice to any products herein to improve reliability, function or design. fairchild does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others. life support policy fairchild s products are not authorized for use as critical components in life support devices or systems without the express written approval of the president of fairchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body,or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in labeling, can be reasonably expected to result in a significant injury of the user. 2. a critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com 4 of 4 6/8/01 ds300207 QED633 qed634 plastic infrared light emitting diode
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