LIGHT EMITTING DIODES 1.6÷ ÷4.6 µm 2.05 µm Model LED20-TEC-PR 1.1 mW •Light Emitting Diodes LED20-TEC-PR are designed for emitting at a spectral range around 2050 nm. Thermocooler and thermoresistor are mounted inside 9 mm package TO-5. Heterostructures (HS) are grown on GaSb substrates •Light Emitting Diodes LED20-TEC-PR 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: LED20 can be used in optical pair with our photodiodes PD24. Our standard LED Driver provides power supply of LED20-TEC-PR in two recommended here regimes (Quasi-CW and Pulsed). Min Typ Wavelength, µm 2.00 2.05 2.09 FWHM, µm 0.15 0.20 0.25 Quasi-CW @ 200 mA 0.9 1.1 1.3 Pulsed@2A 25 28 30 Quasi-CW 10 30 200 mA 250 µs 250 µs Pulsed 50 1 µs Range of temperature o -10÷+60 control C Emitting Area, µm f=2 kHz 2A 300x300 500 µs Soldering o 95 C temperature Imax Qmax Umax (Amps) (Watts) (Volts) 0.7 0.4 1.0 f=2 kHz Optical Power, µW Switching Time, ns Main thermocooler parameters (without load) Recommended regimes of LED operation Max 40 30 20 10 0 TO-5 with Thermocooler, Package ∆Tmax °C 67 50 Thermoresistance, kOhm Parameters -20 Thermistor and Parabolic 0 20 40 Temperature, C 60 Reflector Package TO-5 with Parabolic Reflector LED20 typical spectra at different temperatures 350 300 Thermoresistor Intensity, a.u. LED chip TEC LEAD TOP SIDE VIEW 250 T=11°C 200 T=33°C T=55°C 150 100 50 Thermoresistor 0 1600 Thermoresistor 1700 1,4 1900 2000 2100 Wavelength, nm 2200 2300 Far field pattern with and without reflector LED20 - typical Current-voltage characteristic 40 LED20 - typical power vs. current characteristic at different temperatures 1800 1 1,2 30 1,0 20 0,9 0,8 0,8 0,6 T=11°C T=33°C T=55°C 0,4 0,2 0,0 Current, mA Power, mW 0,7 0,6 0,5 0,4 10 0,3 0,2 0,1 0 -4 -3 -2 -1 0 -10 0 1 2 LED20 (without reflector) -20 -30 0 50 100 150 Current, mA 200 Voltage,V LED20-PR (with reflector) 2400