LIGHT EMITTING DIODES 1.6÷ ÷4.6 µm 4 .3 µ m Model LED43-TEC 10 µW •Light Emitting Diodes LED43-TEC are designed for emitting at a spectral range around 4300 nm. Thermocooler and thermoresistor are mounted inside 9 mm package TO-5. Heterostructures (HS) are grown on InAs substrates •Light Emitting Diodes LED43-TEC are developed for using in optical gas sensors and medical diagnostics. Such construction gives possibility for temperature stabilization of LED parameters. Lifetime is more then 10000 hours. •Related products: Our standard LED Driver provides power supply of LED43-TEC in two recommended here regimes (Quasi-CW and Pulsed). Wavelength, µm FWHM, µm Optical Power, µW Quasi-CW @ 200 mA Pulsed@2A Switching Time, ns Range of temperature control oC Emitting Area, µm Soldering temperature Min 4.10 0.75 Typ 4.20 0.90 Max 4.30 1.05 8 180 10 10 200 30 12 220 50 Recommended regimes of LED operation Quasi-CW f=2 kHz 200 mA 250 µs Pulsed 250 µs -10÷+60 300x300 f=2 kHz 2A 95 oC 500 µs TO-5 with thermocooler and thermistor Package 1 µs Main thermocooler parameters (without load) Imax Qmax Umax (Amps) (Watts) (Volts) 0.7 0.4 1.0 Thermoresistance, kOhm Parameters ∆Tmax °C 67 50 40 30 20 10 0 -20 0 20 40 Temperature, C 60 Package TO-5 LED43 typical spectra at different temperatures 3 LED chip Intensity, a.u. Thermoresistor TEC LEAD TOP SIDE VIEW T=4°C T=21°C T=47°C 2 1 0 2500 Thermoresistor 3000 Thermoresistor LED43 - typical Current Voltage characteristic 40 LED43 - typical power vs. current characteristic at different temperatures 10 T=4°C T=21°C 2 T=47°C 0 0 50 100 Current, mA 150 200 Current,mA Power, µW 4 5000 Far field pattern with and without reflector 30 20 8 6 3500 4000 4500 Wavelength, nm 10 0 -2 -1 -10 0 -20 -30 -40 Voltage,V 1 2 LED43 (without reflector) LED43-PR (with reflector) 5500