clairex technologies, inc. 1301 east plano parkway plano, texas 75074-8524 phone: 972-265-4900 fax: 972-365-4949 www.clairex.co m CLE235 aluminum gallium arsenide ired 0.147 (3.73) 0.137 (3.48) 0.205 (5.21) 0.215 (5.46) 0.100 (2.54) dia. 0.025 (0.64) max. 1.00 (25.4) min. 0.190 (4.83) 0.176 (4.47) 0.165 (4.19) 0.145 (3.68) 0.019 (0.48) 0.016 (0.41) 0.156 (3.96) 0.136 (3.45) anode cathode 0.050 (1.27) nom case 4 clairex ? technologies, inc . all dimensions are in inches (millimeters) features ? wide usable temperature range ? 880nm wavelength ? to-46 hermetic package description the CLE235 is an algaas infrared- emitting diode designed for illuminating functions in high resolution encoders. the to-46 header provides the thermal environment for reliable operation over a wide temperature range. the lens is designed to provide a collimated radiation pattern from 0.10" to 0.20" from the lens tip. call clairex for applications assistance. absolute maximum ratings (t a = 25c unless otherwise stated) storage temperatur e ....................................................................... -65 c to +150c operating temperatur e .................................................................... -55 c to +125c junction temperature (1) .................................................................................. + 150c lead soldering temperature (2) .......................................................................... 240c continuous forward current (3) ......................................................................... 100ma peak forward current (4) .......................................................................................... 3a reverse vo ltage ..................................................................................................... 5v power dissipation (5) ....................................................................................... 200mw notes: 1. maximum operating temperature of the metallurgical junction. 2. 0.06? (1.5mm) from the header for 5 se conds maximum. maximum temperature can be 260c if wave soldering. 3. derate linearly 0.80ma/c fr om 25c free air temperature to t a = +125c. 4. pulsed condition only. maximum pulse width is 2.0 s at 2% duty cycle. use good judgement when operating this device under these conditions. thermal transients exceeding these restrictions can cause irreversible damage. 5. derate linearly 1.6mw/c fr om 25c free air temperature to t a = +125c. fundamental characteristics clairex reserves the right to make changes at any time to improve design and to provide the best possible product . ? march, 2001 revised 12/01/04 (connected to case) wavelength @ i f = 100m a 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 750 800 850 900 950 1000 wavelength (nm) relative intensity vs angular displacement 0.0 0.2 0.4 0.6 0.8 1.0 -40 -30 -20 -10 0 10 20 30 40 angular displacement - degrees relative intensity
clairex technologies, inc. 1301 east plano parkway plano, texas 75074-8524 phone: 972-265-4900 fax: 972-365-4949 www.clairex.co m CLE235 aluminum gallium arsenide electrical characteristics (t a = 25c unless otherwise noted) symbol parameter min max units test conditions p o total power output (6) 6.0 - mw i f = 100ma e e irradiance (7) 400 - w/cm 2 i f = 20ma v f forward voltage - 1.5 v i f = 20ma i r reverse current - 10 a v r = 3v notes: 6. total power output measur ed in an integrating sphere. 7. e e is a measure of irradiance (power/unit area) within a 0.444" (1.128cm) diameter area, centered on the mechanical axis of the device and spaced 2.54" (6.45c m) from the lens side of the tab. this is geometrically equivalent to a 10 cone. typical characteristics at t a = 25c (not guaranteed by test) symbol parameter value units conditions p o total power output (6) 10.0 mw i f = 100ma e e typical irradiance (7) 2.4 mw/cm 2 i f = 100ma p peak emission wavelength 880 nm i f = 100ma bw spectral bandwidth at half power points 30 nm i f = 100ma hp emission angle at half power points 22 deg. i f = 100ma v f forward voltage 1.45 v i f = 100ma t r radiation rise time 600 ns i f(pk) =100ma, f=1khz, dc=50% t f radiation fall time 700 ns i f(pk) =100ma, f=1khz, dc=50% clairex reserves the right to make changes at any ti me to improve design and to pr ovide the best possible product. clairex ? technologies, inc . ? vf normalized vs t a 0.85 0.90 0.95 1.00 1.05 1.10 -75 -50 -25 0 25 50 75 100 125 t a - degrees c vf normalized p o norm alized vs t a 0.00 1. 0 0 2.00 3.00 4.00 5.00 -75 -50 -25 0 25 50 75 100 125 t a - degrees c v f v f vs i f 0 20 40 60 80 100 120 1.0 1.5 v f (v ) i f (ma) i f vs p o 0 5 10 15 0 102030405060708090100110 i f (ma) p o (mw) p o vs i f
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