GaAlAs T-1 3/ 4 Standard 5 Infrared Emitting Diode LTE-3271T/LTE-3371T/LTE-3271TL/LTE-3371TL Features Package Dimensions Special for high current and low forward voltage. High power. Available for pulse operating. Wide viewing angle. LTE-3271TL/LTE-3371TL are blue transparent color package. Description The LTE-3271T/LTE-3371T/LTE-3217TL/LTE-3371TL are high intensity Gallium Aluminum Arsenide infrared emitting diodes mounted in plastic end looking packages. They provide a broad range of intensity selection and are specified under pulsed drive up to 2 Amps. Notes: 1. All dimensions are in millimeters (inches). 2. Tolerance is 0.25mm (.010") unless otherwise noted. 3. Protruded resin under flange is 1.5mm (.059") max. 4. Lead spacing is measured where the leads emerge from the package. 5. Specifications are subject to change without notice. Absolute Maximum Ratings at Ta=25 Parameter Power Dissipation Peak Forward Current(300pps, 10 Continuous Forward Current s pulse) Maximum Rating Unit 150 mW 2 A 100 mA 5 Reverse Voltage V Operating Temperature Range -40 to +85 Storage Temperature Range -55 to +100 Lead Soldering Temperature [1.6mm (.063 in.) from body] 260 for 5 Seconds 10-14 E3271t.p65 Page 14 2000/7/11, ¤W¤È 11:54 Adobe PageMaker 6.5C/Win Electrical Optical Characteristics at Ta=25 Parameter Symbol Part No. Unit Test Condition mW/cm 2 IF=20mA mW/sr IF=20mA 940 nm IF=20mA 50 nm IF=20mA Min. Typ. 0.80 1.4 0.90 1.6 6 10.5 6.77 12 Max. LTE-3271T LTE-3271TL Ee *Aperture Radiant Incidence LTE-3371T LTE-3371TL LTE-3271T LTE-3271TL Ie Radiant Intensity LTE-3371T LTE-3371TL LTE-3271T Peak Peak Emission Wavelength LTE-3271TL LTE-3371T LTE-3371TL Spectral Line Half-Width Forward Voltage LTE-3271TL VF 1.25 1.6 V IF=50mA 1.65 2.1 V IF=250mA LTE-3371T LTE-3371TL LTE-3271T Forward Voltage LTE-3271TL VF LTE-3371T INFRARED PRODUCTS LTE-3271T LTE-3371TL Reverse Current IR 100 LTE-3271T 2 View Angle (See Fig. 6) 1 /2 VR=5V 50 LTE-3271TL LTE-3371T A deg 40 LTE-3371TL Note: *Ee is a measurement of the average radiant incidence upon a sensing area 1cm 2 in perpendicular to and centered on the mechanical axis of the lens and 26.8mm from lens. 10-15 E3271t.p65 Page 15 2000/7/11, ¤W¤È 11:55 Adobe PageMaker 6.5C/Win Typical Electrical/Optical Characteristic Curves (25 Ambient Temperature Unless Otherwise Noted) 10-16